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@@liloldsnoopy4279 can use with movies. Similar concept. This is my first crack at it I have a better one im working on now

You need to use micro controller, full wave rectify the audio, than measure it with a adc than use a dac to control a vca, like SSI2164.

@@AnalogDude_ nah. Trying to reinvent the wheel from scratch is more fun rather than reverse engineering stuff that people smarter than I am already made

​@@igorbrichkov3632 This machine was invented shortly after the transistor and fet where invented, so it's calculated from a to b. it's professional studio gear used on many studio albums and very expensive, no need to reverse engineer you can find the original schematic with notes, the best version if probably the one by Jurgen Haible and is stereo, he uses a normal 18V bi-polar transformer but shifts the output of one coil to 35v+ with use of 2 big capacitors. accept you need to change the in-/output circuit to opamps to receive balance in-/outputs instead of using audio transformers. So some work is needed to be done, additionally you got attack and release over the control voltage.

@@sumitsoni816 in the main video

@@AnalogDude_ yes these are hard to get though

@@AnalogDude_ this is just for testing purposes for me. Not practical as a vco. Would use a cd4046 or cd40106 and then a bunch of low pass filters to turn it into a sine wave for that. But as a function generator where i want to make a sine wave with an adjustable frequency, its pretty good.

@@igorbrichkov3632 well, if you full wave rectify the audio, you can measure it's amplitudes with the microcontroller, than use a dac to open a ota, like lm137000 with some math to take averages to function as agr. that's what i intended to say. i have a circuit to uses a opamp, 2/3 resistors and 2 equal capacitors to make sine wave. forgot the name of the oscillator. you only need a dual gang pot to adjust.

@@igorbrichkov3632 Since i forgot the name of the Sine Wave osc, i made and upload a video for ya, with links to circuits. leave a comment : )

@@leotoledochacabuco i have it in another video related to this. May be the white noise or snare drum video but the schematic is there

@@leotoledochacabuco its in this video ruclips.net/video/i9H2k-kfEhk/видео.htmlsi=l4JrmCd3GZgdVj_z

@@lucassmith6508 low. On cd4013, s and r are active high so i keep them low. This is the opposite for a 74hc74 series flip flop in which the s and r are active low

@@equipeadrenalinaa input on left output on right. C1 and C2 are 10 nf and resistors are 80k with pot and 160k in feedback loop

Resistor to ground should be the 10k pot with a 560 ohm limiting resistor in series. That is the one controlled by the foot pedal mechanism

Sure where do i send it

@@krstech1269 good luck

@@86Ivar thanks. Thats a good idea

Made a video about the noise circuit before this. The schematic is in one of those

@@AnalogDude_ good idea. Regarding crystals i have always wanted to try but don’t know how to use them other than the full can variety which are hard to get

​@@igorbrichkov3632 search: electronic schematic Chrystal. Some seem to use cd40106 / cd4050. with a 32.768 you would be inline with old standards, leaving you with 4 seconds of hd audio. I was wondering when your record audio, do you also hear it? since the adc and dac share the same bus at the same time.

@@igorbrichkov3632 look for "electronic schematic Chrystal" Some seem to use cd40106 / cd4050. with a 32.768 you would be inline with old standards, leaving you with 4 seconds of hd audio. I'm amazed that the sound is pretty recognizable on 16k.

@@igorbrichkov3632 look for "electronic schematic Chrystal"

@@igorbrichkov3632 using a search engine with the right key words will yield results. I'm making a PCB at the moment to do the same, kinda, but using 23lc1024 sram and mcu.

Im still working on that one

@@experimentalzeros5578 hooray for the algorithm. When i tested it out i wasn’t as lucky

@@experimentalzeros5578 its just proof of concept, not very practical.

@@AnalogDude_ thanks for that. The drawings like a lab notebook for me. I feel like ive had the tlo74 glitch on me when i dont use the diodes

@@igorbrichkov3632 It should not, check how Fet's are build on silicon, the gate unlike a transistor is not connected with the drain and source (Field effect). the transistor is related to diodes, so it depends when used in opamps or comparator ic's (NPN or PNP). a single forward diode is enough if you insist, but you lose 0.65 V so your comparator threshold should be a bit bigger than that.

@@igorbrichkov3632 It might be better to use 2 inverters of CD40106 in series and place the RC constant in between the 2 inverters to get a nice squared, the "Schmidt" and voltage clamp mechanisms in them makes possible to remove the threshold resistors of the comparator & diodes. reducing parts & labor.

@@AnalogDude_ agree but i dont have any of the cd40106s left

@@igorbrichkov3632 The cd40106 is faster than comparator. but you could also try a and, or, xor, etc gate they all seem to use CMOS inverters inside (datasheet). a transistor "totem pole" arrangement could also work, the pnp/npn strangle themself, so no resistor is needed on the base. Would you try to use dac0800 / dac0808 on your sampler? to see if it's sounds nicer @ 32kHz.

@@trainmanroysmodelrailroadh7686 if i am understanding your question right, you can just PLAY Level and that plays it based on a high level input. I hope that answers it

i never really use the arduino functions anymore and just attack the registers directly. gives you more flexibility with less code. useful when program memory is limited. still use the arduino ide though. the datasheet is your friend.

@@LordOfNihil the Arduino IDE, yeah, rocks, plain simple, you only need 2 buttons, compile and burn further no visual distraction. i used it with Microchip Fubarino, 32 bit, stamp sized pcb. I have done pic16F, pic18F.

@@AnalogDude_ ive used a lot of at megas and tinys, esp8266/32s, stm32, to name a few, never used pic though.

@@johnwettroth4060 thank you

@@pdarkXIV thanks

@@AnalogDude_ wanted parallel output. Adc676 is the only 16 bit parallel output one but its too expensive. Cd4017 outputs go off after the next count reached and need it to stay on for the and gates. The master reset gets triggered on Q4 of the 595. The only issue is it needs to be inverted as it is active low.

@@igorbrichkov3632 you could try and clock this PCM1808 (or another chip) 16 times and shuffle the output into 74hc595 to get parallel out.

@@igorbrichkov3632 ... or maybe: ADS8867 100ksps, 16 bit, non audio. no software but with a conversion indicator input.

@@igorbrichkov3632 I also was planning to use adc/dac chips, so i had their datasheets. I checked quite a few of them . also researched what to do with differential inputs, witch requires like 3 opamps. special power supply opamps for reference. In the end i settled for: Cirrus Logic CS4271. stereo input / output 192 khz. Recently i was watching the "service manual" of the Akai MPC3000 and found out about the "PCM" chips for output and Japanese AKM adc for input, they also produce high end audio codecs. but like the Cirrus chip, they need software setup to config. since they can be adjusted for 32, 24 or 16 bit and more.

@@86Ivar actually working on it

@@igorbrichkov3632 was thinking sbout this. Can you use a binary adder, adding up bouth the rising counter/transport and the adc. I think that would be cool.

@@AnalogDude_ thanks for the input. Nobody tells you which resistors to put into an R2R. I tried looking at the R2R based DAC ic datasheets and they dont specify either. I tried adding an op amp in inverting configuration after the R2R and before the cap with negative feedback resistor and can get great amplification (even up to 20v peak to peak with a 10k resistor) but i get distortion with everything except the acoustic type music even at unity gain so i left it out. Maybe it was a grounding noise problem. The cd4050 is a great idea though Doing it with an arduino is less fun and definitely less from-scratch than i would like plus you waste an arduino doing it. Total parts is like 15$. The ram chip is like 3$ and adc is $5. Bigger static ram chips are getting harder to source.

​@@igorbrichkov3632 Yeah, but i simulated a R2R array and found out about it. Roland used 75K / 150K for R2R array in the Jupiter 8, the smallest in the Jupiter 4 and SH-101 = 31k, 62,5K, 125K, ... , the biggest 1M (x2). Roland also used multiple "CD4050" buffers on the low bit(s) of the R2R array in the TB-303, SH-101 & Jupiter 4. indicating a high current usage or weak CD4050 back in the days. You need to use voltage follower config behind R2R array, no amplification needed or non inverting config with FET opamp. you can remove the atmel 328P from the Arduino Uno board as loose part with a Chrystal, the are like 3€ / each. That's why i got 23LC512 / 23LC1024 sram chip's to used with microchip pic's. as novice back than i got it to work. they work with the atmel 328p.

@@igorbrichkov3632 i used a 23LC512 to build a simple midi sequencer, some time ago. it was internally 96 PPQ rather than 24 PPQ.

@@igorbrichkov3632 AP Memory APS6404L-3SQR = 64 MB pseudo ram, SOIC8 package, so you need a "txs0108" 8-Bit Bidirectional Voltage-Level Translator to work with Arduino. That's like 10 minutes of 16 bit sound.

@@igorbrichkov3632 it seems my reactions got removed did you got them?

Thanks

@@trukxelf thanks

I have a complete video not short on the anemometer project. Schematic too

@@Brenden.smith.921 thanks for the comment. I think its the latter because when i dont mess with it is pretty stable

@@kenrawlings4184 plan on using the binary counter with rotary encoder that i made a couple of videos ago

@@igorbrichkov3632 sounds like a good idea. You can make a sampler with your d to a converter, that would be cool.

There is a Soic8 pseudo ram chip with 64MB, much better than 100 kB. Probably used in current Nokia phones.

@@thomasw2509 yeah sorry should have mentioned that. I had a -12v on that lower blue for a while so i forgot to mention when i changed it. I put the schematic side by side just to clear it up