I have rpi 3 with DAC+ADC pro setup. My intention is to capture 24/192 wav file
I am using the following commands
# systemctl stop alsaloop
# arecord -c 2 -r 192000 -f S24_LE audio_capture.wav
The audio file gets recorded with all static (hiss).
The setup works fine with 16 bit and 32 bit variations.
What am I missing?
arecord doesn't handle 24bit packed data correctly when writing WAV files.
You can either record in 32bit and convert later with some more "advanced" tool or use another tool to record.
Thanks for your response. I did a quick search for alternatives for arecord, but couldn't find any.
Are there any well-known ones that support recording 24/192?
Have a look at sox: https://sox.sourceforge.net/