Testing for audio playback

Yogiz yogizz at gmail.com
Mon Aug 4 15:50:08 CEST 2008

> Is there a way to test if sound is actually being pumped through the
> sound card? I can lsof various devices in /dev/snd or check
> /proc/asound/card0/pcmXX/sub0/status but those only tell me if a
> client is *connected*. Furthermore, I find it odd that the phone-kit
> does not seem to go through the alsa pcm but is only connected to
> /dev/snd/controlC0. Is there some way to know if the phone kit
> actually active?
I'm probably just misunderstanding you, but why not test the sound card
with a random audio file. Or run 'speaker-test'.

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