Hi all,
I'm testing audio input and output on efus A9 starterkit. I upgraded the board to the latest image (V2.1) and output works (well, only the left speaker but it will be mono anyway). But I'm not able to record any usable sound.
I'm using arecord for recording:
and aplay for playback:
I was trying tu use different audio settings via 'alsamixer' (mic level, input source, (un)mute sources, ...) but without effect. I think that connection is somehow correct because when input is set to LINE_IN there is nothing (i.e. clear silence). With MIC_IN input there is at least some small noise and touching the jack (on the male-male audio cable) makes noise.
I already tried:
- two different headsets (both work on my dekstop PC)
- playback recording from efus on my desktop PC
- upgrade to the latest image - it helped with playback and error when switching input via alsamixer from MIC_IN to LINE_IN is gone
I probably miss something so could you please help me? Maybe my mixer setting is just wrong, so output of 'alsactl store' on your board will help me.
Thanks a lot,
Tomas Novotny