Sometime a need comes to test microphone for use with VOIP applications such us Skype. The simplest and easiest way to test microphone ( MIC ) on your linux system is to use default alsa tools which come with alsa sound system package. First we need to check if alsa had recognized and our sound device.
This is a companion discussion topic for the original entry at https://linuxconfig.org/how-to-test-microphone-with-audio-linux-sound-architecture-alsa
You made a mistake at the last.
arecord hw:1,0 -d 10 /tmp/test-mic.wav
arecord -D hw:1,0 -d 10 /tmp/test-mic.wav
Very helpful. Thanks for posting.