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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Microphone is visible by ALSA, but not recognized by PulseAudio"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90781#c21">Comment # 21</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Microphone is visible by ALSA, but not recognized by PulseAudio"
href="https://bugs.freedesktop.org/show_bug.cgi?id=90781">bug 90781</a>
from <span class="vcard"><a class="email" href="mailto:superquad.vortex2@gmail.com" title="Raymond <superquad.vortex2@gmail.com>"> <span class="fn">Raymond</span></a>
</span></b>
<pre>card 2: S51 [SB Omni Surround 5.1], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: S51 [SB Omni Surround 5.1], device 1: USB Audio [USB Audio #1]
Subdevices: 1/1
Subdevice #0: subdevice #0
card 2: S51 [SB Omni Surround 5.1], device 2: USB Audio [USB Audio #2]
Subdevices: 1/1
Subdevice #0: subdevice #0
what are the function of these three playback devices
aplay -D hw:CARD=S51,DEV=1 --dump-hw-params stereo.wav
aplay -D hw:CARD=S51,DEV=2 --dump-hw-params stereo.wav</pre>
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