Are you sure your sound card did not affect the recording of the diy mic ? Because the studio mic has an integrated sound card that might be better than your computers internal one!
Maybe, maybe not. A lot of modern computers have great audio codecs that can be just as good as a usb microphone or its studio XLR counterpart. This discounts the fact that XLR is a balanced signal and usb is digital.
I would not use USB for voice over and sure as hell not a standard soundcard.. Dude it will never get as good as an XLR. Because of signal to noise ratio
you're right,but i doubt the point that the studio microphone was invested too much in the the ADC chip.Because the microphone by the way has to be connected to a dedicated audio interface before the computer.
@@INeedAttentionEXE No matter what at some point the analog signal travelling along the XLR cable will get digitized for use on a computer. And so having it built into the mic means there is no cable length for signal degredation (you can think of the USB mic having a XLR cable length of nearly zero, assuming it's balanced circuit topology)
I think this test is unfair. Electret microphones needs some housing to avoid the "echo". To make it somewhat similar, I at least would put the band-pass filter in the condenser mic.
@@kevinbissinger yeah this is what i thought. With a good electrec capsule and proper placement it can sound nearly as good it not just as good as a studio microphone
I work with audio for a living and train high schoolers as well. This is an interesting and quality explanation of condenser mics from the functional standpoint. Definitely going to incorporate this video into my curriculum!
I think that reducing both filters (lowering the low pass and extending the high pass frequencies) could greatly improve the resulting sound of voice recording.
Hey greatscott maybe you can make a diy or buy episode about lipo balance chargers, or even a episode on how to build them. Because there are not a lot of diy lipo balace chargers on the internet and buying one is a little bit expensive. Besides that, if we know how to make it we can make more safe battery packs in our diy devices, for instance: make an electric longboard with batterypack and built in charger so you only need to plug in an adapter and dont have to plug the bttery out everytime you charge or have a less save batterypack with a bms. I hope you will see this! And loove your vids, one of the best youtuber
I know this question is 6yrs late😅 but why didn't you use a positive and negative 5volt for the op amp. I'm trying to learn how to use op amps so forgive the noob question 😅. 6:50
120€ gives you a DIY kit that already kinda works - you can't beat it price wise even just for the parts cost, and if you decide that it's not good enough, you already have 5 actually very good quality motors, a decent if somewhat exotic and undocumented board, a good enough hot-end that can do massive temperatures, and lots of other parts which are honestly not particularly good (feeder, heatbed, mechanicals) but just about work, so perfectly suited for modification or rebuilding. And the frame is from melamine plywood, so you won't ruin it by drilling some new holes into it. It's the CTC i3 Pro B that you get on eBay, and the EU import tax on it has already been paid by importer.
Reprap project is open plans for DIY the cost is mostly in the stepper motor drivers ultimately you will need to fix or fiddle with the thing. I built a prusa i3 reprap based kit machine for $300 have two of my friends prebuilt 3d printers sitting here broke because he doesn't know how to fix them, meanwhile I upgraded mine to have an enclosure and use a Bowden extruder and print flexible materials... Point is the knowledge in that arena pays off.
Same thought here... Perhaps that wouldn't have resulted in such an interesting video, but maybe it would have gotten a better value for money. Earlier today I repaired a much less expensive USB cable by replacing the connector. So I would certainly try to repair a nice studio microphone priced at nearly 100 euros... @GreatScott: Thank you for making another nice video, but how about changing this series into "Repair, DIY or buy"?
Thanks again for the awesome build and advice. I implemented your build for a simple Skype mic and worked like a charm. Your videos are youtube-electronics classics. Keep it up. Stay safe
Well actually no! Phantom power is indeed usually 48 volts but it requires the use of a microphone transformer at each end of the microphone cable. Some early high quality mics like the AKG c451E (STILL sold today, unsurprising really as it's a superb high quality mic, yet I was using this exact same microphone in 1971!!) used (uses?) a separate power supply for ease of use where phantom power was unavailable from the mixing desk (where it usually is derived or supplied). The subject is an interesting one and worth checking out on Wikipedia. Much has changed in the industry since my first job as a professional TV sound engineer after graduating, but phantom 48v power and microphones fed from it are still around and old (1970's) microphones can still be used seamlessly in modern studios or on stage rigs without problem - witness the c451E mic already mentioned. Because true phantom power requires 3 wires (2 for balanced audio and the positive 48v feeds plus an audio return) it integrated, and still does, very nicely with the ubiquitous ITT/Cannon 3 pin connectors seen on all professional audio equipment since before I was a boy. Where a 1/4" jack plug (6.35mm) is used it is NOT a balanced feed and in this case in order to provide phantom power a separate power supply will be used that has a built in transformer of appropriate type to which the two-core screened and balanced mic cable is attached (implies that you MUST have a balanced microphone at the other end or an equivalent adaptor from single ended to balanced feed) and which also provides an unbalanced output to connect to the mixing desk. Check out the Wiki, but also bear in mind that POE in the IT world is also a phantom power scenario and utilises the balanced signal transformers contained within modern (relevant ones) Ethernet RJ44 jacks. The separate POE injector units you can obtain do the exact analogous job of the separate 48v phantom feed units in the audio world. BOTH use 48v, 24v and 12v within the standards and at a basic level work in EXACTLY the same way - providing noise rejecting remote power to devices along the signal cable
Phantom power is just electricity that is needed to operate the microphone. It is a DC signal that is then converted into sound waves by the difference in capacitance between the two plates.
3:29 converse CONDOMS convertible contact lenses concealer conversion van like if you too edit: thank you guys for all of this likes never had so many :)
@@philiptrails9033 He didn't browse that. The only thing is... WHO'S SO CRAZY TO BUY CONDOMS ON EBAY? YOU CAN SAY IT'S NEW BUT IMAGINE YOU ARE BEING SOLD A PAPER ENVELOPE WITH USED CONDOMS.
GREATSCOTT You have slight background noise in your video besides your voice and background music from 4:12 . Just a week ago I got RODE NT USB microphone and it works like charm. Also no matter what microphone you use you always have to Normalize, Equalize, Compress, Limit and again Normalize sound waves to get better results. Also with proper Voice modulation and Software use one can get very decent voice over even from cheap Electret microphone i.e., headphone microphone. But to do song recording you definitely need better studio grade microphone. As usual this was again a great video which I enjoyed a lot. YOU SIMPLY ROCK!!!!!
Op-amps NEVER produce faithful amplified signals. They ALWAYS distort analog signals, even if they claim to be 'designed for audio amplification', because they amplify signal at varying levels depending on their frequency. Use op-amps for low quality audio applications, single frequency applications (like RC control signal boosting), digital signal boosting at low data rates, or a few other applications they are useful for. A higher quality audio amp used instead of an op-amp would make a huge difference. This would require a powered circuit and increase the bulk of the design, but we are talking about studio sized mics, so that is no problem. You could use a high quality IC amp made for audio or a set of JFETs with accompanying components for the audio amp section. A minor change to the circuit with minimal cost for the IC option and there are several that would work well. There were 2 mistakes in the design that also effected the quality of the audio. First, you need a few noise floor filters to remove inherent noise in the circuit and any light background noise. This can be done with op-amps in the correct configuration or by discrete parts. One goes between the mic and the first audio amp stage, in between any other amp stages, and one right before the output. This will do noise reduction in the entire circuit and keep the amps from raising the noise floor. Second, your band pass filter was at the wrong frequency ranges. You used the range for the human voice's primary frequencies. This works fine for a telephone call, but it cuts off resonant frequencies that add to the sound of the human voice and music. 20 Hz to 20 kHz is the hearing range of a young, healthy adult. Mics like this can have problems picking up both very low and high frequencies, but for voice it is not really a problem. Music is a different story. A bandpass filter set to 20-20k Hz right after the noise filter at each stage and the initial would be the best filtering solution. You do not need one on the output since the sound card has a bandpass filter built in. There is also the consideration of what your sound card had for the sample rate on its analog to digital converter. This can make a massive difference on sound quality. The USB studio mics would have a very high and high bit-width output from theirs and would have told Windows through the USB connection to use the correct sample rate. Many sound cards built into motherboards are not of very high quality, but there also is the possibility that Windows defaulted to a low sample rate. Go into the mic properties and try turning the sample rate up.
Ideally the feedback network sets the frequency response of an op-amp. And if the signal is within the chip's capabilities it works that way. But given real world op-amp characteristics, a circuit may do very well at lower frequencies but struggle to keep up with higher frequencies. It sounds like he needs a faster op-amp for his microphone.
I dont see how you can reduce the noise floor by adding even more components. I think the only core problem in his circuit is the filters. It is cutting off a lot of the low end and that why it sounds like a telephone. Most likely its the electret microphones frequency response that is the issue, not the opamp. Ive used low noise opamps before (-100db noise) and they always work great. Also, the electret has to be in a decent housing to focus the audio waves
The op-amp can be configured for a noise level threshold cutoff, therefore it will not have an output unless the signal level reaches a certain predefined level/frequency. Course the flip side of this is, that it can clamp certain levels/frequencies and will never sound as good as a professional mic. It's called poor man's DIY mic :D
I've built an microphone amplifier with the studio quality op-amp OPA2134PA made by Burr Brown. The sound quality is amazing! Super clear and very low noise. I recommend this amp absolutely.
Hey, maybe you can make a small surveillance system (camera and network to connect to phone) for your shed? Using a camera and seeing whenever someone is in the frame of the camera. Also you can have it notify you if there is. You can compare a DIY or whether to buy it.
If you go to woodgears.ca, Mattias Wandel has some software a a video or two on something like that up with a Raspberry Pi. He used it to monitor a mouse trap and a maze. Go to wooden machines & contraptions -> Raspberry Pi holder and scroll most of the way down (he's a woodworker, but he was an engineer for RiM so he does some electronics as well). You'll still need to connect it to a network and set it up to notify your phone, but that's more of a networking thing than an electronics thing.
Can you do a DIY or buy episode for a professional quality studio mic with a nice capsule? Converting a phantom power studio mic to a USB mic with proper ADC would also be super awesome!
FUGGING AWESOME DUDE!!!! Two thumbs up! I can't even fathom how you got 337 "thumbs down" on this! But, then again, out of well over 1,000 YT vids that I've watched - i've NEVER seen one that didn't have a few hundred "thumbs downs"... HUMANS!!! Whatevah... I've done this audio/electronic stuff for well over 40 years now - but I am gonna post this on FB to show my friends the kind of stuff that I do. They have no clue and (like most engineers) you probably explained it to the general populous better than I could... LOL! The only thing that could have made it better was if you were to show the results of the noise results before and after you added the 5532 preamp. The 5532 (also know as the NE5532) is a great chip and was utilized in many many pro-audio consoles back in the day! Also, that big (non-electret) TRUE condenser diaphragm IS available by itself! Those are mainly made in China. No, not "gold sputtered" like the Neumann's or AKG's - but "close enough". It would be nice to see you compare your cheap favorite Chinese clone mic TO a Neumann - and then also to DIY a U88 with your fav mic - and a Neumann (if you can find or rent one). Also, you might want to use a better mic pre than "the green jack" found on EVERY PC. The USB jack mic uses a much better converter than your standard computer - and KUDOS to opening up the mic to show us what it is - but the converter I use cost $1,000 (when it was new) and is obviously quite better than either that you are using. You are almost giving your DIY mike quite a disadvantage by plugging it into a cheap computer A/D (aka "the green jack"). Usually that doesn't matter - but to us "golden ears" types, it does! AND if doing a "real world" test between the two, ummm... the MP3 quality of youtube is not the way! How about a 24 bit/96K UNCOMPRESSED WAV (or the Apple format) to show us the REAL sound of these mics!
They convert serial to parallel and vice versa. Like a hard drive, SATA, will spew bits serially and it uses a shift register to load up 8 bits or 32 bits or whatever. Likewise you have a 32 bit word and you want to write it to disk, you have to serialize it, so you shift it out one bit at a time, presto parallel to serial. Smart LED strips are like a shift register, you load the colors serially and then see them all at once (parallel). That might be a fun project, 3 wires (clock, data, ground) to a shift register and 8 outputs to LEDs so you have your own smart display.
Sean Brennan So how could you use it on a serial LCD? I saw a video of someone use a shift register to reduce the number of wires from 12 to 5 going into an arduino without explaining what it did, or even what wires go where.
He probably had a parallel LCD, which wants 8 bit commands. Instead of using 8 data lines, he used 2, one to clock in data, one for the data itself. So he would clock in 8 bits to make a byte, then tell the LCD to execute the command. Nowadays you don't really need parallel devices and can go straight to I2C and use libraries. The other lines were probably ground and enable or some such.
The problem is that he is comparing a commercial capacitive mic with built in ADC with a capacitive mic connected to mic input. To be fair he would use an external usb ADC chip in conjunction with the electret mic in the comparison.
Using built-in ADC has one disadvantage, the audio is polluted with noises from the power supply, external for example USB ADC regulate the voltage and you'll get lot less notice from it 😉
Thanks for the video - I have an old broken condenser mic at home which I was always too scared to try and fix but your explanations are helpful enough for me to try and look! :)
you could have pushed it much further with filtering out noise and enhancing the quality by using more sophisticated amp OC or better microphone module. So my answer is DIY if you know what u are doing and do it perfectly
Oh, you made me remind the glory days of ham radio... I used to do those kind of amplifiers, but on that configuration the noise level is to high when connected to Power supply. We used to connect it with 9v batts. I remember to make one with pair differential input, that way you zero'd all the interference captured in the mic line.
Hey scott, great video! Very interesting. I wonder, could you show how to make a noise cancelling circuit for such a microphone to increase the audio quality? Or perhaps for noise cancelling headphones?
Interestingly, I'm doing a mix of DIY and BUY with my mic. Few months ago I bought a Neewer NW-700 mic kit (comes with a mic, phatnom power supply, XLR cable, XLR-phono cable, boom arm, and pop filters all in a USD$60 kit), but I completely forgot that analogue condenser mics produce signals only a hundred or two millivolts strong. So I'm intermittently (when I can motivate myself) DIYing a pre-amplifier to boost the mic's output for recording. And mostly using jellybean components. The op amp I'm using is the LM324 quad op amp, with two utilized for the left/right channels of the mic output, and a third acting as just a voltage follower to buffer the 2.5V DC offset for the other op amps. I'm at the point where I just need to breadboard it and test it out to make sure that it works like it should. :)
Like your result. Quality compares to what I experienced when I did my electret microphone tutorial. The small capsules and the soundcard ADCs are basically too bad to get a good result.
I have an idea for the "DIY or BUY" it's very simple, it's relays connected by wifi or 433mhz often I see blooming in DIY stores. For example relays for heating or lights, sometimes I find it exorbitant to simply switch on and off the heating via a mobile APP. Because in principle it's cheap it only takes a small ESP8266 and a relay and other small components. I have the impression that consumer home automation brands are inflating prices because of compatibility with their product suite. Thank you for your videos "DIY or BUY" I find them very interesting and pragmatic.
I was into audio for 5 years or so, but I only know a little about electronics (so feel free to correct me if I'm wrong). Anyways the quality isn't necessarily bad, it's just lacking frequency range.... Considering you added/applied your own filters over the raw output of the microphone, try raising the low-pass filter (to around 20khz), and/or increase the slope a bit at the cutoff(s), and I bet that mic will sound twice as good. Also make sure you're recording at 96khz sample rate to be safe or a minimum of 44.1khz. As someone else pointed out the consumer mic has a built-in soundcard/adc and those certainly vary in sound-quality.
I guess u should buy a cheap power supply kit than a cheap power supply or make your own if a good power supply is under your budget than you should buy one
Some Guy Not really. These Led-Chips are very common nowadays having a light output of roughly 100 Lumens per Watt. To build such a Flahlight, you really just need a boost converter with constant current feature, which he already build, and a charging/protection board for multiple cells in series. These are also not really expensive to get. Apart from that, there is basically just a housing + heatsink + swich needed.
GreatScott! I hope one day you will make a video ( not a project ) but a video on how you succeeded in electronics. Electronics is so tough but you can make it somehow easier for someone to learn.
Diy for sure. Diy is the way they've always been done (pretty much the entire rc aircraft industry has been diy for decades). The models that have become mainstream have become mainstream due to marketing and ease of entry, but are not superior to their diy counterparts. Anyone comfortable with diy should diy. On a side note, they also make an excellent father-son project, i remember building my first diy rc helicopter with my father 13 years ago and honestly, it was one of my best experiences with him. Just enough challenge to make you think, but not enough to be frustrating.
Shaun Husain so youre telling me that a well known brand such as DJI is a scam? Please elaborate as if memory serves you cant get a motion controlled drone that works without paying much of a premium. Would like to hear your thoughts on that
The issue with the voice quality is no tone shape network and I think it would be best to have two stages of amplification (one after the ton shaper network) that way the gain on each stage is less, but the overall gain is greater, I also believe that first referencing the microphone frequency curve and adjusting the tone shaper circuit, filter network and gain stages to compensate would deliver a much better sound quality (and not add much in terms of component.) If you wire both stages in an inverting configuration you can get a couple of resistors less in your design (for the microphone power, and bias) and tweak the negative feedback to reduce hizz (at high volume) on the output.
An electret microphone module, which has a microphone mounted on a small pcb with a MAX4466 pre-amp, is available on ebay for about 3 euro. The gain is adjustable from 25 to 125.
I can't remember what the company was, but you can buy the high quality capacitor mic element and hook it into the same circuit as the electret capsule, you'll just need a jfet since most of those larger diameter microphones don't have one built in like the little electret.
I stumbled across this video while looking for DIY intercom systems to aid in communication across Perspex barriers (COVID-19). Since the cheapest electret mics have peaks that emphasize articulations in human speech, it's clear that these are better suited to my purpose than large diaphragm condenser mics, especially in an environment with a lot of background noise.
Nice video, I've got an idea for improvements to the circuitry: 1. The op-amp could be replaced with an ordinary audio transistor for a simpler circuit using less parts without hampering it's performance! 2. Adding a RIAA (or similar) filter to the circuit to suppress the higher frequencies, which should make the output less "tinny"... N.B. It's the latter of the two which will make the output quality nearly indistinguishable from the high-end mic! Also, output filter cap. It's not there, which could hurt certain devices when this is plugged in due to the 2.5V bias on the output! Analog designs can be a headache, but it's worth it to make as good a circuit as you possibly can...
Great Video , thank you for this one, even I got 40 years exp. in electronic this was something I do not know well, never tested never tried, just used studio mic , or my gaming headset mic to record videos and that is, now I do understand things much better. Thank you man. You really carry your nick with right on it. You are great.
Perhaps the results can be improved still by enclosing the electret mic somehow, instead of having a bare capsule like that. For the price, you can't beat it, so I'd choose DIY, esp. since you can harvest an electret from somewhere and cut costs even more :))
It's important to understand that there are 3 kind of microphones. Pure dynamic microphones that actually generate very small amount of electricity from sound waves, electret microphones that require 3-5 V bias voltage (also called plug-in power) that this video is about and condensator microphones that require 48 V phantom voltage. The problem is that many electret microphones are incorrectly advertised as dynamic microphones and people end up claiming that some microphone is not compatible with some device when the device only supports dynamic microphone and user tries to use (incorrectly advertised?) electret microphone.
The reason your voice sounds like its gone through a high-pass filter when using that small capsule is because it literally doesn't catch those lower frequencies well at all. You can find those larger capsules available for purchase but sometimes you really have to search for them. Visit the micbuilders yahoo group for sources, lots of other information there. Also, the INA217 is lower noise, higher gain and needs fewer parts.
I love those tiny micros - Built a custom UNO shield just for this that supports all tiny micros with some dedicated test sockets too. you can find it on tindie - Just type 'All ATtiny Arduino programmer shield'
On second thought ... I wonder whether you are mixing apples and oranges in this comparison. Those little 9.7mm electret capsules are usually intended for close-talking applications, such as in a head-worn microphone arrangement - while the larger diaphragm "studio" type condensers are intended for speaking farther away. I wonder if the 9.7mm DIY capsule would not sound much better if you used it close up. I would like to compare the open signal voltage (i.e., microphone output sensitivity level) for each capsule in the test pool. I bet they are quite different which may reinforce the need to use each capsule differently - they are not intended to work the same at equivalent distances, sort of like comparing apples to oranges. eh? Happy days. JR
Thanks, this was a good explanation of the differences between a condenser and electret microphone, the schematics for the microphone preamplifier where also interesting.
Another great video. nice, fun little project. I can think of lots of applications for a mini mic/ amp combo, especially married to a nice FM transmitter. Your Circuit Schematic drawings are professional, Your handwriting is professional and legible, instead of "pretending your a doctor." the videos flo smoothly from point to point, with a keen focus. (not repeating the same thing over 6 different ways) The video is actually about the subject in the title, and not about everything you have experienced in life getting to this point. I love the way you have common circuits engrained in your head, and know which ones go together. Most of all, I like how you use your math to create, and share your steps in calculating. You just bomb it out without even thinking. I would like to achieve that level. Bad Ass. More impressive than any athlete, movie star, politition, or singer. If I had a choice between tickets to Meria Carrie, the world series, most any sports event, Jay Lennos Garage, Shakil Oneils Bar B Q, or a day hanging out in your lab. I'd be on my way to your place. You have a really good voice and manner of speaking as well. I really enjoy your videos, a lot is put into them. Thanks. Very Much.
Hallo Greay Scott! I've seen your video and I'm very inerested in the circuit of your old mocrophone. As an Arduino project fan, I am now really apreciating ADC's and the one on your old microphone should be FAST SAMPLING and may be at least 16 bit. Here is the question: "can you figure out how to remove the DC bias filter on your old USB microphone?" The goal shoud be transforming that USB microphone into a (maybe two channel or in a sinhle channel) USB data acquisition card!!!! That can be veeeery cheap! Thank you!
I would be interested in seeing a follow up episode on how you could improve this design for a mic. Other Interested Topics: DIY Drone DIY Analog Audio In to Digital Audio self contained device (not using sound card).
I think the big difference was simply due to the area of the microphone membranes. Obviously you can't get the same low frequency response from such a small membrane. A bigger pickup area is the solution, either with a bigger pickup or a few electrets wired together. This is a good video, it got my imagination flowing; thank you.
0:15 ..... or just repair / replace the USB Socket!
IRFZ44 he got money,he dont care
He just wants a new microphone :v
IRFZ44 its in the name of science
Sometimes we need the excuse to buy something new.-:)
LabFiona True Thats what I do
I really like this "DIY or buy?" series. I always ask myself that when I need something.
My choices are usually diy or go sit and cry lol be broke
@@Aydentv same haha
Are you sure your sound card did not affect the recording of the diy mic ? Because the studio mic has an integrated sound card that might be better than your computers internal one!
Maybe, maybe not. A lot of modern computers have great audio codecs that can be just as good as a usb microphone or its studio XLR counterpart.
This discounts the fact that XLR is a balanced signal and usb is digital.
I would not use USB for voice over and sure as hell not a standard soundcard.. Dude it will never get as good as an XLR. Because of signal to noise ratio
you're right,but i doubt the point that the studio microphone was invested too much in the the ADC chip.Because the microphone by the way has to be connected to a dedicated audio interface before the computer.
@@INeedAttentionEXE No matter what at some point the analog signal travelling along the XLR cable will get digitized for use on a computer. And so having it built into the mic means there is no cable length for signal degredation (you can think of the USB mic having a XLR cable length of nearly zero, assuming it's balanced circuit topology)
@@sophiophile Yeah, yours is the best comment I've ever seen in this channel. point delivered.
I think this test is unfair. Electret microphones needs some housing to avoid the "echo". To make it somewhat similar, I at least would put the band-pass filter in the condenser mic.
I also can't confirm that microphone capsules aren't sold separately - they are and that would be a fair comparison IMHO.
7:08 He did add band-pass filter.
@@kevinbissinger yeah this is what i thought. With a good electrec capsule and proper placement it can sound nearly as good it not just as good as a studio microphone
Yeah, this was almost like comparing speakers in a cabinet vs speakers without a cabinet.
@@siontheodorus1501 are these electret ones need an additional power as one of the plate is permanently charged
I work with audio for a living and train high schoolers as well. This is an interesting and quality explanation of condenser mics from the functional standpoint. Definitely going to incorporate this video into my curriculum!
I think that reducing both filters (lowering the low pass and extending the high pass frequencies) could greatly improve the resulting sound of voice recording.
Hey greatscott maybe you can make a diy or buy episode about lipo balance chargers, or even a episode on how to build them. Because there are not a lot of diy lipo balace chargers on the internet and buying one is a little bit expensive. Besides that, if we know how to make it we can make more safe battery packs in our diy devices, for instance: make an electric longboard with batterypack and built in charger so you only need to plug in an adapter and dont have to plug the bttery out everytime you charge or have a less save batterypack with a bms.
I hope you will see this! And loove your vids, one of the best youtuber
I put it on my to do list
I'd like to see a vid about this as well, so +1 from me
GreatScott! Im looking forward to it
Hey guys, just my take on this subject, i think that it would be a lot easier to a buy a cheap sub $20 charger than to make one.
Ditto
One project that I actually did. And it works well
Kudos to great Scott for taking the time to make these projects and videos
Excellent video! I have been using for years a diy mic in my videos. it works for me xD cheers
Saludos Gastón!
Tanto tu canal como este, son mis favoritos!
Same
Proyectos LED 8
Saludos Gastón que bueno verte por aquí...
Proyectos LED No te escribieron :'v
Love the DIY or Buy series. The DIY microphone definitely has its applications! Thanks for your schematic
I just use a Samson Go mic. It's a steal for $40!
I know this question is 6yrs late😅 but why didn't you use a positive and negative 5volt for the op amp. I'm trying to learn how to use op amps so forgive the noob question 😅. 6:50
For the next diy or buy: a 3d printer
too much work tbh buy a cheap one for around 300€ and you are good
YES!!!
Yes please
120€ gives you a DIY kit that already kinda works - you can't beat it price wise even just for the parts cost, and if you decide that it's not good enough, you already have 5 actually very good quality motors, a decent if somewhat exotic and undocumented board, a good enough hot-end that can do massive temperatures, and lots of other parts which are honestly not particularly good (feeder, heatbed, mechanicals) but just about work, so perfectly suited for modification or rebuilding. And the frame is from melamine plywood, so you won't ruin it by drilling some new holes into it. It's the CTC i3 Pro B that you get on eBay, and the EU import tax on it has already been paid by importer.
Reprap project is open plans for DIY the cost is mostly in the stepper motor drivers ultimately you will need to fix or fiddle with the thing. I built a prusa i3 reprap based kit machine for $300 have two of my friends prebuilt 3d printers sitting here broke because he doesn't know how to fix them, meanwhile I upgraded mine to have an enclosure and use a Bowden extruder and print flexible materials... Point is the knowledge in that arena pays off.
DIY mic sounds retro. This is absolutely lovely. The Lavalier mic sounds clear but cold.
With your knowledge about electronics, wouldn't it be cheaper to replace the broken USB port?
Naaaaah.
True, but that would have spoiled the fun of playing around with electret mics.
Same thought here... Perhaps that wouldn't have resulted in such an interesting video, but maybe it would have gotten a better value for money. Earlier today I repaired a much less expensive USB cable by replacing the connector. So I would certainly try to repair a nice studio microphone priced at nearly 100 euros...
@GreatScott: Thank you for making another nice video, but how about changing this series into "Repair, DIY or buy"?
Plus it wouldn't have generated a few DMarks in ad revenue ;D
@@greatscottlab not only was it fun for you... it is very educational for all of us viewers!
Thanks again for the awesome build and advice. I implemented your build for a simple Skype mic and worked like a charm. Your videos are youtube-electronics classics. Keep it up. Stay safe
Please make for DIY noise cancelling headphones
I put it on my to do list
Thanks a lot.
Waiting for that.
GreatScott! Hi Scott love from India....:)....!!!
Good idea.
U are a God in drawing understandable schematics. Seriously
So that's what phantom power is about when talking about mics. I had always wondered. I assume the music was from audioblocks?
+Wholly Mindless Correct
Patreon supporters get to watch the videos earlier.
+Senpai Kur I think Patreons get to watch videos earlier than others.
Well actually no! Phantom power is indeed usually 48 volts but it requires the use of a microphone transformer at each end of the microphone cable. Some early high quality mics like the AKG c451E (STILL sold today, unsurprising really as it's a superb high quality mic, yet I was using this exact same microphone in 1971!!) used (uses?) a separate power supply for ease of use where phantom power was unavailable from the mixing desk (where it usually is derived or supplied). The subject is an interesting one and worth checking out on Wikipedia. Much has changed in the industry since my first job as a professional TV sound engineer after graduating, but phantom 48v power and microphones fed from it are still around and old (1970's) microphones can still be used seamlessly in modern studios or on stage rigs without problem - witness the c451E mic already mentioned. Because true phantom power requires 3 wires (2 for balanced audio and the positive 48v feeds plus an audio return) it integrated, and still does, very nicely with the ubiquitous ITT/Cannon 3 pin connectors seen on all professional audio equipment since before I was a boy.
Where a 1/4" jack plug (6.35mm) is used it is NOT a balanced feed and in this case in order to provide phantom power a separate power supply will be used that has a built in transformer of appropriate type to which the two-core screened and balanced mic cable is attached (implies that you MUST have a balanced microphone at the other end or an equivalent adaptor from single ended to balanced feed) and which also provides an unbalanced output to connect to the mixing desk.
Check out the Wiki, but also bear in mind that POE in the IT world is also a phantom power scenario and utilises the balanced signal transformers contained within modern (relevant ones) Ethernet RJ44 jacks. The separate POE injector units you can obtain do the exact analogous job of the separate 48v phantom feed units in the audio world. BOTH use 48v, 24v and 12v within the standards and at a basic level work in EXACTLY the same way - providing noise rejecting remote power to devices along the signal cable
Phantom power is just electricity that is needed to operate the microphone. It is a DC signal that is then converted into sound waves by the difference in capacitance between the two plates.
3:29
converse
CONDOMS
convertible
contact lenses
concealer
conversion van
like if you too
edit: thank you guys for all of this likes never had so many :)
He did not delete history😁
@@philiptrails9033 He didn't browse that. The only thing is... WHO'S SO CRAZY TO BUY CONDOMS ON EBAY? YOU CAN SAY IT'S NEW BUT IMAGINE YOU ARE BEING SOLD A PAPER ENVELOPE WITH USED CONDOMS.
I'm going to modify a TI84 graphing calculator to make phone calls. Now I know how to get the microphone working, thanks!
BoomBrush even with a microphone, how are you going to make phone calls?
using a SIm5320E module with an arduino using the IO port on the calculator to transfer the phone number.
Great niche idea, find retro handheld games and put smartphones in them.
BoomBrush I’m subbing to you I wanna see this
Jesus thats sketch.
I Love it.
Its time for a update on this Video. Watch DIY perks Building a quality USB-C microphone. And make a better one :)
3:29 nice search suggestions
WTF eBay!
I think that he love Chevrolet... But I'm not sure...
He did not clear his history😁
Why there is "Condoms" on his search suggestions...Lol
GREATSCOTT You have slight background noise in your video besides your voice and background music from 4:12 .
Just a week ago I got RODE NT USB microphone and it works like charm. Also no matter what microphone you use you always have to Normalize, Equalize, Compress, Limit and again Normalize sound waves to get better results. Also with proper Voice modulation and Software use one can get very decent voice over even from cheap Electret microphone i.e., headphone microphone. But to do song recording you definitely need better studio grade microphone.
As usual this was again a great video which I enjoyed a lot. YOU SIMPLY ROCK!!!!!
Op-amps NEVER produce faithful amplified signals. They ALWAYS distort analog signals, even if they claim to be 'designed for audio amplification', because they amplify signal at varying levels depending on their frequency. Use op-amps for low quality audio applications, single frequency applications (like RC control signal boosting), digital signal boosting at low data rates, or a few other applications they are useful for.
A higher quality audio amp used instead of an op-amp would make a huge difference. This would require a powered circuit and increase the bulk of the design, but we are talking about studio sized mics, so that is no problem. You could use a high quality IC amp made for audio or a set of JFETs with accompanying components for the audio amp section. A minor change to the circuit with minimal cost for the IC option and there are several that would work well.
There were 2 mistakes in the design that also effected the quality of the audio.
First, you need a few noise floor filters to remove inherent noise in the circuit and any light background noise. This can be done with op-amps in the correct configuration or by discrete parts. One goes between the mic and the first audio amp stage, in between any other amp stages, and one right before the output. This will do noise reduction in the entire circuit and keep the amps from raising the noise floor.
Second, your band pass filter was at the wrong frequency ranges. You used the range for the human voice's primary frequencies. This works fine for a telephone call, but it cuts off resonant frequencies that add to the sound of the human voice and music. 20 Hz to 20 kHz is the hearing range of a young, healthy adult. Mics like this can have problems picking up both very low and high frequencies, but for voice it is not really a problem. Music is a different story. A bandpass filter set to 20-20k Hz right after the noise filter at each stage and the initial would be the best filtering solution. You do not need one on the output since the sound card has a bandpass filter built in.
There is also the consideration of what your sound card had for the sample rate on its analog to digital converter. This can make a massive difference on sound quality. The USB studio mics would have a very high and high bit-width output from theirs and would have told Windows through the USB connection to use the correct sample rate. Many sound cards built into motherboards are not of very high quality, but there also is the possibility that Windows defaulted to a low sample rate. Go into the mic properties and try turning the sample rate up.
Ideally the feedback network sets the frequency response of an op-amp. And if the signal is within the chip's capabilities it works that way. But given real world op-amp characteristics, a circuit may do very well at lower frequencies but struggle to keep up with higher frequencies. It sounds like he needs a faster op-amp for his microphone.
Google 'Unity Gain Bandwidh Product' please.
I dont see how you can reduce the noise floor by adding even more components. I think the only core problem in his circuit is the filters. It is cutting off a lot of the low end and that why it sounds like a telephone. Most likely its the electret microphones frequency response that is the issue, not the opamp. Ive used low noise opamps before (-100db noise) and they always work great. Also, the electret has to be in a decent housing to focus the audio waves
THIS IS THE LONGEST. COMMENT. EVER
The op-amp can be configured for a noise level threshold cutoff, therefore it will not have an output unless the signal level reaches a certain predefined level/frequency. Course the flip side of this is, that it can clamp certain levels/frequencies and will never sound as good as a professional mic.
It's called poor man's DIY mic :D
I've built an microphone amplifier with the studio quality op-amp OPA2134PA made by Burr Brown. The sound quality is amazing! Super clear and very low noise. I recommend this amp absolutely.
Hey, maybe you can make a small surveillance system (camera and network to connect to phone) for your shed? Using a camera and seeing whenever someone is in the frame of the camera. Also you can have it notify you if there is. You can compare a DIY or whether to buy it.
If you go to woodgears.ca, Mattias Wandel has some software a a video or two on something like that up with a Raspberry Pi. He used it to monitor a mouse trap and a maze. Go to wooden machines & contraptions -> Raspberry Pi holder and scroll most of the way down (he's a woodworker, but he was an engineer for RiM so he does some electronics as well).
You'll still need to connect it to a network and set it up to notify your phone, but that's more of a networking thing than an electronics thing.
Can you do a DIY or buy episode for a professional quality studio mic with a nice capsule? Converting a phantom power studio mic to a USB mic with proper ADC would also be super awesome!
Nice job yaar... Don't be upset over negative comments.
FUGGING AWESOME DUDE!!!! Two thumbs up! I can't even fathom how you got 337 "thumbs down" on this! But, then again, out of well over 1,000 YT vids that I've watched - i've NEVER seen one that didn't have a few hundred "thumbs downs"... HUMANS!!! Whatevah... I've done this audio/electronic stuff for well over 40 years now - but I am gonna post this on FB to show my friends the kind of stuff that I do. They have no clue and (like most engineers) you probably explained it to the general populous better than I could... LOL! The only thing that could have made it better was if you were to show the results of the noise results before and after you added the 5532 preamp. The 5532 (also know as the NE5532) is a great chip and was utilized in many many pro-audio consoles back in the day! Also, that big (non-electret) TRUE condenser diaphragm IS available by itself! Those are mainly made in China. No, not "gold sputtered" like the Neumann's or AKG's - but "close enough". It would be nice to see you compare your cheap favorite Chinese clone mic TO a Neumann - and then also to DIY a U88 with your fav mic - and a Neumann (if you can find or rent one). Also, you might want to use a better mic pre than "the green jack" found on EVERY PC. The USB jack mic uses a much better converter than your standard computer - and KUDOS to opening up the mic to show us what it is - but the converter I use cost $1,000 (when it was new) and is obviously quite better than either that you are using. You are almost giving your DIY mike quite a disadvantage by plugging it into a cheap computer A/D (aka "the green jack"). Usually that doesn't matter - but to us "golden ears" types, it does! AND if doing a "real world" test between the two, ummm... the MP3 quality of youtube is not the way! How about a 24 bit/96K UNCOMPRESSED WAV (or the Apple format) to show us the REAL sound of these mics!
well DIY perks has proven you wrong this time!
Man do I wish I that I'd studied electrical engineering when I was younger. You make this look easy! thanks for the videos.
8:59 lel quite disapointed for a 57€ RODE mic... t. bone are the best haha
I think I finally understand high and low pass filters as a side effect. Awesome video...thanks
I would like to see a video on shift registers. Never fully understood how they worked or what purpose they served.
I put it on my to do list
They convert serial to parallel and vice versa. Like a hard drive, SATA, will spew bits serially and it uses a shift register to load up 8 bits or 32 bits or whatever. Likewise you have a 32 bit word and you want to write it to disk, you have to serialize it, so you shift it out one bit at a time, presto parallel to serial. Smart LED strips are like a shift register, you load the colors serially and then see them all at once (parallel). That might be a fun project, 3 wires (clock, data, ground) to a shift register and 8 outputs to LEDs so you have your own smart display.
Sean Brennan So how could you use it on a serial LCD? I saw a video of someone use a shift register to reduce the number of wires from 12 to 5 going into an arduino without explaining what it did, or even what wires go where.
He probably had a parallel LCD, which wants 8 bit commands. Instead of using 8 data lines, he used 2, one to clock in data, one for the data itself. So he would clock in 8 bits to make a byte, then tell the LCD to execute the command. Nowadays you don't really need parallel devices and can go straight to I2C and use libraries. The other lines were probably ground and enable or some such.
Sean Brennan OK thanks for your help.
GEAT SCOTT! Another great great scott video!
Does it sound any different going into a quality USB ADC?
I agree with your. To do a fair comparison, a quality USB AD is needed.
True ;)
Actually, your PC also uses an ADC, sound card or on board audio, they both use an ADC
The problem is that he is comparing a commercial capacitive mic with built in ADC with a capacitive mic connected to mic input. To be fair he would use an external usb ADC chip in conjunction with the electret mic in the comparison.
Using built-in ADC has one disadvantage, the audio is polluted with noises from the power supply, external for example USB ADC regulate the voltage and you'll get lot less notice from it 😉
This is great.
Now i have the solution to my camera Microphone recording.
Small and compact for this kind of use.
Wooow wat a great project Scott
The DIY version can definitely sound better with shielding. ( I think )😂
Or with a different capsule and an enclosure.
Thanks for the video - I have an old broken condenser mic at home which I was always too scared to try and fix but your explanations are helpful enough for me to try and look! :)
Please do digital amplifier || DIY or Buy
yeah maybe there are high quality electrets which allow higher qualities ?
As always, amazing video !!
Awsome Video Dear Scott!
you could have pushed it much further with filtering out noise and enhancing the quality by using more sophisticated amp OC or better microphone module. So my answer is DIY if you know what u are doing and do it perfectly
Your efforts always add quantum shift to my growing understanding.
Thanks and best wishes 😊👍
Excellent video. Watched this 5 minutes after I ordered my new USB studio microphone. After all, it still was a good choice. Thanks for sharing.
DIY or buy 4k 60fps camera are you up for the challenge
Are you serious?
#notready
Oh, you made me remind the glory days of ham radio... I used to do those kind of amplifiers, but on that configuration the noise level is to high when connected to Power supply. We used to connect it with 9v batts. I remember to make one with pair differential input, that way you zero'd all the interference captured in the mic line.
Hey scott, great video! Very interesting. I wonder, could you show how to make a noise cancelling circuit for such a microphone to increase the audio quality? Or perhaps for noise cancelling headphones?
Interestingly, I'm doing a mix of DIY and BUY with my mic. Few months ago I bought a Neewer NW-700 mic kit (comes with a mic, phatnom power supply, XLR cable, XLR-phono cable, boom arm, and pop filters all in a USD$60 kit), but I completely forgot that analogue condenser mics produce signals only a hundred or two millivolts strong.
So I'm intermittently (when I can motivate myself) DIYing a pre-amplifier to boost the mic's output for recording. And mostly using jellybean components. The op amp I'm using is the LM324 quad op amp, with two utilized for the left/right channels of the mic output, and a third acting as just a voltage follower to buffer the 2.5V DC offset for the other op amps. I'm at the point where I just need to breadboard it and test it out to make sure that it works like it should. :)
please can you do 3d printer diy or buy?
As always, a great video! Thanks Scott
"usb studio microphone" is an oxymoron
Lol Fr
DIY or buy is actually a great series idea
I would like to see a diy/buy version for synthesizers e.g. 8-bit synthesizers.
Great job you did tho
I put it on my to do list
bruh...
Like your result. Quality compares to what I experienced when I did my electret microphone tutorial. The small capsules and the soundcard ADCs are basically too bad to get a good result.
Is it because of the high pass filter?
the same feeling from my side, just a different eq , perhaps already build in the factory mic circuit to boost some frequencies
I think you are right, and i think cut off at 15kHz is bit too low. I mean this should be 20kHz about . For me this diy Mic sounds „low”
Great Job @GreatScott! making this video
3:27 searches....
I have an idea for the "DIY or BUY" it's very simple, it's relays connected by wifi or 433mhz often I see blooming in DIY stores. For example relays for heating or lights, sometimes I find it exorbitant to simply switch on and off the heating via a mobile APP. Because in principle it's cheap it only takes a small ESP8266 and a relay and other small components. I have the impression that consumer home automation brands are inflating prices because of compatibility with their product suite. Thank you for your videos "DIY or BUY" I find them very interesting and pragmatic.
*Can I get the Schematic for this Project, Please*
It's on the video
I was into audio for 5 years or so, but I only know a little about electronics (so feel free to correct me if I'm wrong). Anyways the quality isn't necessarily bad, it's just lacking frequency range.... Considering you added/applied your own filters over the raw output of the microphone, try raising the low-pass filter (to around 20khz), and/or increase the slope a bit at the cutoff(s), and I bet that mic will sound twice as good. Also make sure you're recording at 96khz sample rate to be safe or a minimum of 44.1khz. As someone else pointed out the consumer mic has a built-in soundcard/adc and those certainly vary in sound-quality.
Please give us a PCB card
Huge fan of your diagrams and penmanship.
diy or buy variable lab bench power supply.
I guess u should buy a cheap power supply kit than a cheap power supply or make your own if a good power supply is under your budget than you should buy one
Shahid Nazir Are you from Pakistan bro?
no I am from Kashmir
no I am from srinagar
Muhammad saboor no iam from kashmir
another good one Scott, always a pleasure.
Great video. Diy or buy quadcopter : D
Thank u so much man! Cuz of u I made a mic preamp and it almost costs 1$ and it sounds good enough for normal use 🙂
Buy or DIY a baby?
You can get one from the dodgy guy in the alley
Diy 😏
Jacob Wood oh yeah
H3000 oh yeah
Have you tried to raise a child
I LOVE YOUR VIDEOS!!!! Such cool ideas and explanation. Please never stop!
How about a Diy or Buy Episode on bright 18650 powered flashlights with an Output of 350-1000 Lumens?
Makersteve YT possibly buy as making a flashlight that powerful could pose challenges
Some Guy Not really. These Led-Chips are very common nowadays having a light output of roughly 100 Lumens per Watt. To build such a Flahlight, you really just need a boost converter with constant current feature, which he already build, and a charging/protection board for multiple cells in series. These are also not really expensive to get. Apart from that, there is basically just a housing + heatsink + swich needed.
GreatScott! I hope one day you will make a video ( not a project ) but a video on how you succeeded in electronics. Electronics is so tough but you can make it somehow easier for someone to learn.
Diy or buy a drone
Buy
diy
Absolutely diy... Buy a cheap one to learn then build a 250 because you will be rebuilding it at some point. DJI and the like are a huge rip off.
Diy for sure. Diy is the way they've always been done (pretty much the entire rc aircraft industry has been diy for decades). The models that have become mainstream have become mainstream due to marketing and ease of entry, but are not superior to their diy counterparts. Anyone comfortable with diy should diy. On a side note, they also make an excellent father-son project, i remember building my first diy rc helicopter with my father 13 years ago and honestly, it was one of my best experiences with him. Just enough challenge to make you think, but not enough to be frustrating.
Shaun Husain so youre telling me that a well known brand such as DJI is a scam? Please elaborate as if memory serves you cant get a motion controlled drone that works without paying much of a premium. Would like to hear your thoughts on that
The issue with the voice quality is no tone shape network and I think it would be best to have two stages of amplification (one after the ton shaper network) that way the gain on each stage is less, but the overall gain is greater, I also believe that first referencing the microphone frequency curve and adjusting the tone shaper circuit, filter network and gain stages to compensate would deliver a much better sound quality (and not add much in terms of component.) If you wire both stages in an inverting configuration you can get a couple of resistors less in your design (for the microphone power, and bias) and tweak the negative feedback to reduce hizz (at high volume) on the output.
I’ve notice he’s a Lefty....
An electret microphone module, which has a microphone mounted on a small pcb with a MAX4466 pre-amp, is available on ebay for about 3 euro. The gain is adjustable from 25 to 125.
I can't remember what the company was, but you can buy the high quality capacitor mic element and hook it into the same circuit as the electret capsule, you'll just need a jfet since most of those larger diameter microphones don't have one built in like the little electret.
You’re great, Scott! Great video, as always!
I stumbled across this video while looking for DIY intercom systems to aid in communication across Perspex barriers (COVID-19). Since the cheapest electret mics have peaks that emphasize articulations in human speech, it's clear that these are better suited to my purpose than large diaphragm condenser mics, especially in an environment with a lot of background noise.
Nice video, I've got an idea for improvements to the circuitry:
1. The op-amp could be replaced with an ordinary audio transistor for a simpler circuit using less parts without hampering it's performance!
2. Adding a RIAA (or similar) filter to the circuit to suppress the higher frequencies, which should make the output less "tinny"...
N.B. It's the latter of the two which will make the output quality nearly indistinguishable from the high-end mic!
Also, output filter cap. It's not there, which could hurt certain devices when this is plugged in due to the 2.5V bias on the output!
Analog designs can be a headache, but it's worth it to make as good a circuit as you possibly can...
Great Video , thank you for this one, even I got 40 years exp. in electronic this was something I do not know well, never tested never tried, just used studio mic , or my gaming headset mic to record videos and that is, now I do understand things much better. Thank you man. You really carry your nick with right on it. You are great.
Best of all youtube channels name!!!
Perhaps the results can be improved still by enclosing the electret mic somehow, instead of having a bare capsule like that. For the price, you can't beat it, so I'd choose DIY, esp. since you can harvest an electret from somewhere and cut costs even more :))
Very helpful video 👍
It's important to understand that there are 3 kind of microphones. Pure dynamic microphones that actually generate very small amount of electricity from sound waves, electret microphones that require 3-5 V bias voltage (also called plug-in power) that this video is about and condensator microphones that require 48 V phantom voltage.
The problem is that many electret microphones are incorrectly advertised as dynamic microphones and people end up claiming that some microphone is not compatible with some device when the device only supports dynamic microphone and user tries to use (incorrectly advertised?) electret microphone.
Fantastic work, man. You could've tried the broken microphone with your board.
The reason your voice sounds like its gone through a high-pass filter when using that small capsule is because it literally doesn't catch those lower frequencies well at all. You can find those larger capsules available for purchase but sometimes you really have to search for them. Visit the micbuilders yahoo group for sources, lots of other information there. Also, the INA217 is lower noise, higher gain and needs fewer parts.
I love those tiny micros - Built a custom UNO shield just for this that supports all tiny micros with some dedicated test sockets too. you can find it on tindie - Just type 'All ATtiny Arduino programmer shield'
Grab a MEMS digital microphone like MP45DT02, they performed quite well. Nowadays they use these in mobile phones, but not electret mic.
On second thought ... I wonder whether you are mixing apples and oranges in this comparison. Those little 9.7mm electret capsules are usually intended for close-talking applications, such as in a head-worn microphone arrangement - while the larger diaphragm "studio" type condensers are intended for speaking farther away. I wonder if the 9.7mm DIY capsule would not sound much better if you used it close up. I would like to compare the open signal voltage (i.e., microphone output sensitivity level) for each capsule in the test pool. I bet they are quite different which may reinforce the need to use each capsule differently - they are not intended to work the same at equivalent distances, sort of like comparing apples to oranges. eh? Happy days. JR
Thanks,
this was a good explanation of the differences between a condenser and electret microphone, the schematics for the microphone preamplifier where also interesting.
Another great video. nice, fun little project. I can think of lots of applications for a mini mic/ amp combo, especially married to a nice FM transmitter. Your Circuit Schematic drawings are professional, Your handwriting is professional and legible, instead of "pretending your a doctor."
the videos flo smoothly from point to point, with a keen focus. (not repeating the same thing over 6 different ways) The video is actually about the subject in the title, and not about everything you have experienced in life getting to this point.
I love the way you have common circuits engrained in your head, and know which ones go together.
Most of all, I like how you use your math to create, and share your steps in calculating. You just bomb it out without even thinking. I would like to achieve that level. Bad Ass.
More impressive than any athlete, movie star, politition, or singer.
If I had a choice between tickets to Meria Carrie, the world series, most any sports event, Jay Lennos Garage, Shakil Oneils Bar B Q, or a day hanging out in your lab. I'd be on my way to your place. You have a really good voice and manner of speaking as well.
I really enjoy your videos, a lot is put into them.
Thanks. Very Much.
Hallo Greay Scott! I've seen your video and I'm very inerested in the circuit of your old mocrophone. As an Arduino project fan, I am now really apreciating ADC's and the one on your old microphone should be FAST SAMPLING and may be at least 16 bit.
Here is the question: "can you figure out how to remove the DC bias filter on your old USB microphone?"
The goal shoud be transforming that USB microphone into a (maybe two channel or in a sinhle channel) USB data acquisition card!!!! That can be veeeery cheap! Thank you!
Thanks for a great DIY project. The microphone delivers good audio for its price.
I think u r a sound engineer helping people make professional cheap mic🥺🥺🥺😄
I would be interested in seeing a follow up episode on how you could improve this design for a mic.
Other Interested Topics:
DIY Drone
DIY Analog Audio In to Digital Audio self contained device (not using sound card).
Normal tech guys: ill change the usb port so it works again.
Scott: lets buy a new one
I'd love to see this revisited with what DIY Perks just did.
I think the big difference was simply due to the area of the microphone membranes. Obviously you can't get the same low frequency response from such a small membrane. A bigger pickup area is the solution, either with a bigger pickup or a few electrets wired together. This is a good video, it got my imagination flowing; thank you.
I love the DIY or Buy concept!