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<b><a class="bz_bug_link
bz_status_NEW "
title="NEW - Incorrect volume in sound indicator"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88265#c8">Comment # 8</a>
on <a class="bz_bug_link
bz_status_NEW "
title="NEW - Incorrect volume in sound indicator"
href="https://bugs.freedesktop.org/show_bug.cgi?id=88265">bug 88265</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>your usb audio only support 6 channel and has pcm playback volume control with
very small dB range from -3.12 dB to 0dB
the work around is ignore dB range by specify
ignore_dB=1
<a href="http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#index53h3">http://www.freedesktop.org/wiki/Software/PulseAudio/Documentation/User/Modules/#index53h3</a>
USB Mixer: usb_id=0x05a71020, ctrlif=0, ctlerr=0
Card: Bose Corporation Bose USB Audio at usb-0000:00:14.0-1, full speed
Unit: 3
Control: name="PCM Playback Volume", index=0
Info: id=3, control=2, cmask=0x0, channels=1, type="S16"
Volume: min=-801, max=-1, dBmin=-312, dBmax=0
Unit: 3
Control: name="PCM Playback Switch", index=0
Info: id=3, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
post output of your usb audio device
lsusb -vvvv</pre>
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