You can use external SPI ADC such as AD5662 DAC and AD7680 ADC with 4.5V Reference such REF194.More details and a schematic for one channel of sampling to SD card and playback using 16 MHz 8-bit processor herehttps://forum.arduino.cc/index.php?topic=180769.0(forum adds some extra characters at the front, I can't seem to clean it up)
Does SPI help to transfer those data quickly?
can I use https://uk.farnell.com/analog-devices/ad977bnz/adc-16bit-100ksps-dip-20/dp/2462278?st=Analog%20to%20Digital%20converter%20100%20ksps%2016%20bit%20spi
Yes.Yes but the Link says it is now no longer stocked.Your final throughput or sample rate will depend on what sort of signal processing you want to do. Is this digital filtering?
If you are looking for sound distortion effects, what's the use of external ADC and DAC rather than the on board 12-bit ADC and DACs ?https://forum.arduino.cc/index.php?topic=596875.0
But 1bit more won't make something more accurate to CD-quality, right?
Hello, I want to do some serious audio processing with Arduino DUE. How better performance can I get with an external hardware A/D with more than 10 bits? What is the best resolution + sampling I can achieve? With which hardware A/D? In previous post in this thread I have read that external hardware communicates with Arduino through SPI. Any suggestion is appreciated. Thank you...