<div dir="ltr"><br><div class="gmail_extra"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<br>
After Ubuntu 10.04 LTS (Ubuntu 10.10 works, Ubuntu 11.04 doesn't work at<br>
all, Ubuntu 11.10 and newer have the bug), the headset only plays sound<br>
at maximum volume level if the volume is turned down just a little no<br>
sound is being played.<br>
<br>
I have filled a Ubuntu bug for 12.04 LTS at:<br>
<a href="https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1200925" target="_blank">https://bugs.launchpad.net/ubuntu/+source/alsa-driver/+bug/1200925</a> .<br>
I was advised to contact this mailing list.<br>
<br>
AlsaInfo for Ubuntu 12.04 LTS with the bug:<br>
<a href="http://www.alsa-project.org/db/?f=3bde76b15a15f585418a6a4a4703ca67fd4cdf42" target="_blank">http://www.alsa-project.org/db/?f=3bde76b15a15f585418a6a4a4703ca67fd4cdf42</a> .<br>
AlsaInfo for Ubuntu 10.04 LTS without the bug:<br>
<a href="http://www.alsa-project.org/db/?f=5824e55345c3f7128937405254485a489886b9dc" target="_blank">http://www.alsa-project.org/db/?f=5824e55345c3f7128937405254485a489886b9dc</a> </blockquote><div><br><br></div><div>It is strange that dB range of your usb audio is 0 to 0.14 (only small gain and no attenuation)<br>
<br></div><div>In 10.04 LTS pulseaudio provide software volume control<br><br><br>( 1.095| 0.000) I: alsa-sink.c: Driver does not support hardware volume control, falling back to software volume control.<br><br><br>control.6 {
<br>comment.access 'read write'
<br>comment.type INTEGER
<br>comment.count 1
comment.range '0 - 37'
<br>comment.dbmin 0
comment.dbmax 14
<br>iface MIXER
<br>name 'Speaker Playback Volume'
value 30
}<br><br><br></div><div> In 12.04 pulseaudio did not provide software volume attenuation and use the speaker playback volume control<br></div></div></div></div>