Maybe it’s muted. Sound >>> Input >>> Select Microphone >>> Device properties >>> Additional Properties Maybe there is a switch to get it unmuted. Here in folder Level
gs9533w64.exe /S eDocPrintPro50_x64.exe /listlangs eDocPrintPro50_x64.exe /exelang 1033 /exenoui /qn
Use output.alsa in unbuffered mode. To prevent scratching sounds on start (sound devices buffer is not empty on start) do system(“aplay -d 1 -q silence.wav”) at the beginning of your script. It replaces the buffer remnants witch silence.