I am working on an audio stream between two virtual servers. For that, I have set up a dummy soundcard (as the vservers don't have a hw card) using modprobe snd-dummy.That seems to work fine - I am able to tweak volume levels using alsamixer. Unfortunately, I am not able to record any playback. I used arecord -r 48000 -c 1 to see what's going on, and the output is quite creepy. It contains paths:Aufnahme: WAVE 'stdin' : Unsigned 8 bit, Rate: 48000 Hz, monoRIFF$WAVEfmt data85m85m {D {DXCCC C5m  C@P {D}DxC@C0C! C~DP}DC{D{D{DQ`C C  `D(5m@0re/alsa/bluetooth.confC5m 0|Dre/alsa/pulse.confC5mbluetooth.confaC CiceA|D|D  |Dr/.asounPCCX|D{D{D CCC`CPC`C C|DCCCA CC  CP@C~D~DC85m85m {D {DXCCC C5m  C@P {D}DxC@C0C! C~DP}DC{D{D{DQ`C C  `D(5m@0re/alsa/bluetooth.confC5m 0|Dre/alsa/pulse.confC5mbluetooth.confaC CiceA|D|D  |Dr/.asounPCCX|D{D{D CCC`CPC`C C|DCCCA CC  CP@C~D~DC85m85m {D {DXCCC C5m  C@P {D}DxC@C0C! C~DP}DC{D{And so on...There mentions of [..]/alsa/pulse.conf, bluetooth.conf and .asoun[drc?] are really really strange.Does anyone have a clue what is going on here? Have I configured the soundcard the wrong way, or is there anything I missed?
ALSA dummy device - how to configure?
configuration;audio;alsa;pulseaudio
arecord will record from your sound card, which is a dummy, so its not surprising it contains rubbish. You want to record from the network. There are lots of ways to do that, but snd-dummy won't help. You could try pulse-audio - it has good support for network sound, or you could use jack audio - a bit harder to set-up, but less confusing and low latency.