MiniDSP UMIK-2 (Overkill?)
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- Опубликовано: 8 июн 2024
- In this video, we look at what sets the new MiniDSP UMIK-2 apart from most of the other mainstream USB omnidirectional measurement microphones.
Get yours here: www.minidsp.com/products/acou...
More about the 32-bit float file format: www.sounddevices.com/32-bit-f...
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Chapter List:
00:00 - Video Introduction
00:26 - Unboxing
00:36 - Inventory
00:53 - What Sets It Apart
01:22 - 32 Bit Dynamic Range
02:24 - Windows Installation
02:52 - REW Compatibility
03:12 - Related Content
03:34 - "Invalid" Measurements
04:30 - Demo Preface
05:02 - In-Car Test Setup & Test
05:26 - In-Car Test Results
05:34 - Sound Room Setup & Test
06:03 - Sound Room Test Results
06:08 - Demo Conclusion
06:37 - Bottom Line 
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Dude your work is all incredibly well done. The data presentation, camera work, video editing, etc, it's all top notch. Keep it up!
@@HexiBase can a UMIK (1,2) be used as a standard microphone for streaming / video recording for e.g. RUclips ? I would assume yes, indeed.. and getting amazing quality sound too, since they're calibrated mics covering the whole freq. spectrum. Thanks !
0:38 Giving you a thumbs up just for the shot showing what's included in the box and then splicing in the two previous mics in seamlessly.
Pete i always am so excited to be watching your newest and greatest RUclips video upload. Excellent good video of topic of choice for discussion
kinda bummed, no one in the comments mentioned that awesome sweep shot, showing all 3 mics behind each other
that one actually surprised me
n1
I'm spoiled....too used to it.
well done...ive had my umik1 for years, but may still get this
I Love the camera movement at the Unboxing.
You know every time I watch one of your videos I feel a urge to buy everything shown in the video. I hope you can sleep at night knowing you're that awesome...
@ 03:50 , best analogy I've heard in a very long time. Made me laugh. Thanks. Your content is always amazing. Can't wait to see what you do next.
Quality production. Simple concise info. Great review.
I love how the world of audio engineering is so similar to the world of RF engineering. If it exists in the world of RF, there is probably an audio equivalent out there (waveguides, horns, anechoic chambers , etc...). Just goes to show how a wave is a wave, and whether its electromagnetic or pressure wave, they still obey physics in much the same way!
I really appreciate your attention to strict technical commitment and talking about it in an easily understandable way. Great work you have caused me to last min redesign my box for 2x 6.5 Skar EVL Subs
Another fantastic video!
Awesome video, awesome presentation.
I have no idea what your talking about in most of this video but i watch everything you put out just in case. Your 3D printed enclosures are so well done I want to print them all even though I have no use for them
Been very happy with the UMIK, glad to see they've only improved upon it.
“Influenced by gravity”.
Guffaw launched coffee mist.
@@HexiBase Yeah, the trajectory of said coffee is definitely invalid!
That car is sick, by the way. Excellent video too!
Pete! You should produce a video outling DSP tuning (both home and car audio). Would love to see your process on getting a good target response at the listening position. Keep up the awesome videos. Cheers!
Great vid boss...
Love your channel. The 90's was my heyday for car audio. For some time I played with horn loaded compression drivers for front stage, and they could be made to work to pretty good affect, providing good staging and imaging, and carrying the range from about 800Hz to 20Khz. It took a lot of tuning, both physical and signal, to get good performance. Would love to see you take a crack at modeling something new and maybe reviving or reintroducing the concept with your own twist.
Hi man, enjoy your videos so much. Best quality videos on the tube, ope you keep going for a long time! I have a question/request: given your knowledge og acoustics, could you do a video on speaker placement and roomloading? Not like a bulletproof solution, thats imposible but somthing to help people to work with what they got. Kind of like Bobs guide "rational speaker placement" that would be awesome. Greetings from norway! Keep up!
Been subscribed since the "Guess What's in My Trunk?" Days 👍
Hello brother when are you making new videos? Hope all is good by yourside. Your work is awsome
How does this compare to the Dayton audio omnimic v2? Also when I look at the specs of the umik v2 I can’t find it’s frequency range. Does it go below 20hz?
Hey man i love your videos and im just geting into car audio because of you, i was wondering how sound travels through the box and if it matters where you place the sub, like the top of the box or side, im wondering if the sub perpendicular to the port will sound better or will one parallel to the port, will it cause the sound to bounce around the box or will it still find its way into the port?
Question, just found your channel and my first impression is that you are an authority in your field. Recently I’ve been upgrading my audio setup and one new features for me is Dirac Live. Do you recommend the UMIK-1 or UMIK-2, price is not that important, just what is the best practically (using MacOS)? Also I need to take multiple measurements, how do I orientate the microphone to the speaker?
What were you using for the camera movement? Well done!!
Please make some more videos 🥺
Can you please make a video of how to set up the equipment and taking a response graph of a JBL BT speaker for example
Can this microphone record the low frequency sound of my neighbors stomping? If I am using this for recording audio only, I assume I don't need the do the calibration because my purpose is not to use it for measuring speakers so I can use it right away and it will work?
Hi Hexi, I recently learned about the Moving Microphone Method for capturing frequency response data and I instantly became a fan for how easy and repeatable it is.
Now I'm wondering why I've only ever seen you doing sweeps. Is there some info I may have missed? (Apart from the obvious that you can't measure phase from pink noise)
@@HexiBase makes perfect sense. Thank you for your quick response!
I love watching your videos and some of the comments make me lol.
Have you seen or heard of the new range of Yamaha sub boxes.
Is there much effect in a shaped port with twists to change air flow.
Is this something you could further test or dismiss ?
Obviously the smooth flow of air makes all the difference. so size and shape matters. But does adding flutting and twists (like threads) do anything
Mate love your channel, would love to see what you think of the Tesla "premium sound system" they offer in their cars... I know it would never compare to a custom setup but interested to see how good/bad you think it is 👍😎
Could you do a video on best way to sound deaden enclosures please .
With Same settings on master Volume and mic gain in Dirac,the Umik one is at -18db and the Umik 2 at around -30db . Is that normal? I feel,that the Umik 2 measures better (Levels are more balanced) in my Atmos Setup of Speakers and Overall it sounds little "clearer" after calibration.
Hexi, I would love to see a video talking about omni-directional speakers since they are very rarely used and even talked about these days but they can sound amazing given the right engineer, drivers, enclosure, and design. It really bugs me that there is no market for Omnis, even for surround applications. You only see them on $10-20 tiny bluetooth speaker, old ones from the 70s, or on the really high end. But, there is this company OHM who makes the OHM Walshes that make incredible omnies that are very nice but extremely expensive. I never even see omnies in the low-mid budget range if at all, even ones with just 1 full range driver firing up into a cone that would be great for surround speakers or stereo to fill a room. These speaker manufacturers usually tend to do the Triangular shaped Dipole/Bipole design with a driver on each side fired 90' degrees from each other and a tweeter to try and spread the sound. Id like to see a video on your take on omni-directionals. Maybe a DIY with a 4-6' Coaxial full range driver, or a 2 way with Woofer and tweeter design for a stereo setup. Something to that nature? Especially since you 3D print, you could create the nice coned shape, "I dont know the correct name for it" that reflects the sound that are so hard for DIY builders to make. Maybe an idea for a future vid? That's my issue, I could make an enclosure, get the driver, etc) but get that cone shape its hard to make and source. I dont know all the math to design and choose all the right parts but again, your thoughts on them would be awesome. Thanks. I this love the channel!
It’s been 3 months since the last video. Where did you go?
Would I benefit from having this over the version 1 for Dirac Live calibrations only?
Where can I buy a mic stand like the one in this video? It's near the beginning with the dual microphones in the front seat of the car.... I run a multichannel miniDSP DIRAC box in my car and taking measurements could be much less of a hassle with a mic stand like that one.
Hi is it safe to tune a cabinet below Fs like putting a sub with 35Hz Fs in a 28Hz tuned cabinet. Is it Safe at all
Which hard shell case with foam did you use there at the end of the video?
Does anyone know the best place to buy this mic in the UK?
Also, the best/simplest software to use this mic to tune the frequency response of the speakers I am building? (preferably free). I am not a pro, but an enthusiastic amateur.
Could you please advise if spray on sound deadening products from Parts Express work ??????????
Do you have any sugestion of full range and enclosure for a 3W + 3W tube amp?
does audio dynamics only design enclosures for their subs or do they design them for any subs?
Yo, whats up with the amazing red build honda next to the chamber?
Duuuude, now you mention the words that matter about differences in mics to an extent. YOU made me spend money I got reserved for other things in order to get a clearer (if possible) picture of how sound behaves in my car, my living room, then a few years in roll you say THIS. Your videos made me buy the DATS v3 and 1st gen UMIK and learned REW. I'm already 1 calendar year in testing 4th and 6th order bandpass prototypes in 8" and 10" subs. I did scavenge all existing vintage equipment for parts my family had. My parents want to throw me out of the apartment, that I inherited, since in their words "we gave you a home and want grand kids, but you turned this place into a science lab". Great work....and here's the real question - Is it worth it to upgrade from UMIK 1 to REV 2, given that I'm making some side money on car audio calibration (don't ask how I accomplished that with half analog signal and what-not) and some mid range clients in home audio who have more options but are stingy AF? ;) I'm still dreaming of a mini dsp medium to major unit, even the large ones, but I also have to pay bills. :) This is still not my profession, but I have invested 16 years of trial and error and several thousands $$$ already, just because I love music! .....and seek perfection without selling body parts! ;) Holla from Eastern Europe. :)
@@HexiBase I've followed you around, 250k USD for a child, 3/4ths of my nation would revolt for that, me including!!! Sad that me and you have to put certain words in "brackets".....I fully understand. However my question still stands......Is it worth it to go UMIK 1 to REV 2? .....or maybe get a simple Mini DSP instead? However I put those 16 years in reading, experimenting, learning.....I'm not asking for life or financial advice, I'm asking as a person. :)
@@HexiBase Oh WOW, so there's no need in changing 10 year old equipment for 1080p + 16 bit sound,5 channels unless 4k + 24 bit sound where applicable......where 4k picture + 32 bit sound source was a thing?........I'm honestly asking as It doesn't make any monetary sense where I live!......I'm sorry if I sound backwards! :)
Can you please do a 3d printed bluetooth speaker that can be cheap and portable. I really want to know what design you'll come up whit. It can be very interesting maximizing the feel of two small drivers like 5 w
Hexi,are you going to do a review of the new audio dynamics 4000 series ?
I'm really surprise of this long stroke subwoofer from a SQ brand, it s very promissing
They look nice. Not bad at under 500 bucks. Thinking about getting the 12.
This is again a question for you, if my understanding is correct these measurement mics are great at recording sound with minimal distortion. But nobody recommend a measurement mic for voice recording, what may be the reason?
@@HexiBase that makes perfect sense, thank you
Which speaker simulation software do you use? acoustic box???
How do you model the in-car response, are there options in Bass Box for inputting the listening areas walls or something like that? I've only used WinISD and REW before.
I'm just starting out, but I've found in WinISD if you add a Linkwitz Transform filter, It will give you a very rough estimate of an in-car response....probably wrong though
@@jonnydrozd8845 probably very.
@@jonnydrozd8845 video: A Link In The Chain, Channel: Audio Dynamics
ill press X to doubt the 32bit, bit depth on the ADC. Getting true 32 bit dynamic range on an ADC is very very difficult. It can be done, but usually requires metrology grade voltage references, and chips costing as much as some cars.
Not possible with this bandwidth.
Is this mic 32 bit fixed or float? I assume it's fixed.
Also, which interface did you use to record the 32 bit float audio of this video?
I just asked miniDSP & it outputs 32 bit fixed. That also means it can be clipped
Can do do a video on designing musical instrument speakers/bass guitar speakers?
@@HexiBasethat will be great 🙏
I would so like to shoot RAW with "...infinity steps of dynamic range" instead of 12-14. :-) That was a perfect analogy!
3rd. here we go again, another great vid.
you should to a budget 3d printed hifi steup vid
Pete where did you get the case for the mic from
@@HexiBase ahh bummer we dont have that here
Noticed the m1060 planars, did you do any mods to yours? Btw loving the progression with the editing and camera skills. You're killing it.
I have a pair as well, I installed EqualizerAPO and a predone EQ I found on github which takes the frequency response closer to harman. I also use cloth pads found on ebay for the Audeze LCD series, which seem less harsh than the pleather stock pads
I replaced the pads with some brainwavez and the cable and run them on a Schiit Hel, enjoying them very much.
Why haven't you uploaded anymore
Why do you use krk’s?
Wow, nivce mic. And not that expensive, 195 USD
Thanks for sharing your experience to all of us :-)
there may be an error in your math. theoretically ideal 32 bits analog to digital converter may give you up to 1.76 + 32*6.02 = 194 dB of dynamic range. this excludes any noise or non-linearity of the microphone or its analog front end. the ADC itself usually has less effective bits than its ideal bits due to thermal and flicker noise. 194 dB DR may seem like a lot, but any smallest impairment may greatly decrease it. maybe they use a sigma-delta and reshape the noise floor somehow - need to check the exact ADC to know for sure. anyway, that floating point notation and 1200 dB DR is missing the point
@@HexiBase you are saying in the video "usb interface boasting 32 bits of DR" and then immediately going to files in 32 bit floating notation format. that leap is problematic. data storage format is orthogonal to sampling bit depth. also, "dynamic range of usb" is not clear. i think you mean that the microphone front end samples the analog signal at 32 bit depth and then the signal is sent through the usb real-time. if not, please correct me. in such a case, my math holds.
Wait a sec. I hear people hyping 32-bit gear, but... i struggle to see how it can work and be useful, if real mic preamps massively struggle to deliver more than 20 bits worth of dynamic range? As do microphones of any kind.
Right! Dynamic range is generally always dominated by signal to noise, not bit depth. SNR = effective bit depth, I suspect at any given time 8 to 16 bits are wasted on noise.
@@reidtowsley5029 I suppose a different workflow can make sense. Like, killing the analogue gain control entirely. Just hard setting the preamp gain where the inherent noise will just caress the bottom of the dynamic range of the ADC, which can be just the usual 24-bit ADC with maybe 20-21 bits actually useful. Then you have captured the whole signal.
But then you have another problem that you can't hear yourself on the monitoring path and the volume levels in the DAW don't make sense. But if you then have an output gain control which is digital and operates in floating-point domain, you can have a comfortable output level and all the dynamic range of the source data.
Third problem is that you actually can't hard fix the gain as said above because different source devices have different self-noise. A dynamic might have no measurable self-noise, as far as the interface is concerned, it might all be coming from the preamp, while an active condenser will need less gain, but will have ample self-noise, so you still need some automation to set the gain such that the ADC just bottoms out on whatever the predominant source of noise. That's again something such a topology can fix, by estimating the noise floor and servoing it to a sensible ADC value using digipots in the preamp gain, and compensating it back on the digital output gain to provide a consistent output.
So it can be a massive quality-of-life feature. Which i don't know whether it works like that but seems like it should? Foremost as a musician, broadcast tool.
I am Thai, I would like you to make a speaker cabinet from the speaker model.popepod Of the apple flowers, flowers, size 4.5 ", power 50 watts, 4 Oh. Thank you for reading.
please do new video
👍excellent 👍🆒️👌🎧🔊
What is that Android app?
its less dipping at 80Hz which is actually a good thing
I'm all about resolution but honestly things are getting out of control IMO. Phone screens with 4k resolutions? Is it a genuine benefit or a marketing ploy to sell sell sell. High bit depth and sampling has it's place where a signal is going to be processed later in the chain but for this application it's as you say - overkill.
@@HexiBase That's a good point and could be considered post-processing.
@@drivenbydemons6537 "future proof" is the keyword here
@@DarkIzo I understand future proof. At what point in the future do human eye/ear resolution catch up with the tech? LOL. I bet 1/2 the people watching these vids can't even hear above 16k. BUT yes I do understand the need. As I said in my OP - if the signal is going to be processed or analyzed the extra resolution and rate do make a difference.
@@drivenbydemons6537 exactly that, our analogue ears will stay just the same they were before, but every extra resolution helps with data analyzing and processing
Did you go ghost?
32 bit 192 khz will do nicely on paper with impressive numbers so what. Compared to that, an analog Studer A820 studio master recorder looks terrible. But no person will ever say that a Studer sounds bad. So numbers don't say much.
G'day,
Yikes !
Such is life,
Have a good one...
Stay safe.
;-p
Ciao !
;-p
@@HexiBase
Thanks !
Yeah..., we live in interesting times ; and the Thymes, they be a' Changelings...(!).
I sat down with a Beer, to listen to my thunkin's regardin' CitiZen Trumpy and how since the Senate voted him to be unconvictabubble by the Legislative Branch of Government - then it would appear that it'll be up to the Judicial Branch (FDOJ & FBI...) to lay Charges in the Criminal Courts...
This promises to be quite a fascinating Spectacle to observe, especially when spectating from a distance...; but I dunno how much fun the process will be, as seen in the granular Close-Up of actually living in the USA...(?).
Keep your heads down, I suppose - is the best I can thunk of..., and hope that the Neighbours don't mistake ye for bein' a "Zombie" (how long has the 'Pocalypse been eagerly awaited ?)....; which would almost be funny, were it not so close to the facts.
Such is life,
Have a good one...
Stay safe.
;-p
Ciao !
770dB means that this thing won't clip even you are right next to a space x rocket launch. lol
I have an imm6 lol
Looks at earthworks M50, Definitely overkill
Hello
Making a 3d printed Bluetooth accu speaker better than the jbl boombox?!
A claim to have a 32 bit depth at 192k sps is just that. A claim. I don't know which chip they are using, but I'm willing to bet the chip doesn't get anything over 16 usable bits at 192k sps. Hell, even that is mighty impressive.
its probably 12 to 14 useable bits, if that. ADC's are a major pain in the rear to get beyond 12 bit, and getting 16 true bits, is a damn impressive feat of engineering. 24 is, for the most part, just a pipe dream. However, true 32 and 24 bit ADC's exist, but they are reticulately expensive, and require metrology grade voltage references and circuit design to even get there. They also usually have sample rates measured in samples per second, not Kilo samples per second.
I have built ADC's capable of true 12 to 16 bit, but they are massive, expensive and very complex. (by design the ADC, i mean the actual chip, not putting a chip on a board, though the ADC in question is more of a rack cabinet with dozens of boards, then a chip). The problem i often run into is external influence and reference noise, as well as component noise and quantum effects in the silicon. Heck, the damn thing is cryocooled to even get there.
>Sound room totally covered in foam.
>Not the door though.
I know I'm late to this one but I love your videos though man.
Your "anechoic" chamber isn't anechoic at all. The foam you have on your walls affects only the very high frequencies. So you're better off doing your measurements outside, in the open, far from any walls or surfaces than in that room for low frequency measurements.
When I seen that, I laughed. You could see SBIR effects and room modes in his test.
Tonnage is off the charts. Tonk.
I can see sbir and standing waves in your "anechoic" measurements.
There's reasons why professionals and experts in psychoacoustics tell you not to eq above the Schrodinger frequency.
But you do you.
Not overkill at all ,,,,
@@HexiBase easier looking at it , than looking for it ,,, lol
My friend ghosted me, I felt like sharing.
That sucks. Sorry to hear.
No content in a long time 😡
Lego
I'm not sure where you are getting this notion of 32-bit floating point but it's incorrect. There is no FP audio standard. The mic transmits 32-bit linear PCM (integer quantization).