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I have connected a usb sound card to my rpi 3 model B but the problem is even though the speaker connected through the sound card is working the mic is not. If I try
arecord -d 10 -D hw:0,0 -r 16000 -f S16_LE -c1 /home/pi/mic-test.wav
OR
arecord --device=hw:0,0 --format S16_LE --rate 44100 -c1 test.wav
I get only noise which is there even if I remove the mic from the sound card
I have made the USB audio card index = 0 Please help.
In order to get recording to work from my USB headset, which may be approximately the same... as long as the default sound card drivers work... I needed to select device 1 as follows:
arecord -d 10 -D hw:1,0 -r 16000 -f S16_LE -c1 /home/pi/mic-test.wav
Rather than device 0, which should be the Raspberry Pi audio.
I also needed to unmute the microphone in alsamixer Make sure you select the USB device via the F6 menu... then F5 for all channels.
