I'm using a raspberry pi zero to record audio. I have a usb audio dongle plugged in to it for the microphone. However, when I record with it, the input is EXTREMELY staticy. It's pretty much unusable. I tried plugging in the microphone into my computer and it works fine. I also tried a different microphone with a different USB input device and that was still unusable. What should I do?
first try this: arecord -f s16_LE -r 8000 -d 10 test8k.wav
and record "This is 10 seconds of 8 kilo-hertz 16 bit mono"
then play it back:
========== If audio output is too soft - in command prompt can do: > alsamixer s (select card) downarrow to “0 bcm2835 ALSA” 8 (4=default loudness, 8=100%, 9=125%) Escape (press Esc) then make setting default: sudo alsactl store 0