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 Forum index » Advanced Topics » Hardware » Audio
Can't control the sound volume
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Smithy


Joined: 12 Dec 2011
Posts: 448

PostPosted: Fri 15 Mar 2013, 11:36    Post_subject:  Can't control the sound volume
Sub_title: Proc/Asound/usbmixer?
 

Having trouble to get software volume to work in puppy.

The issue is being talked about here. could be relevant for usb audio devices.

http://code.google.com/p/volti/issues/detail?id=22
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Smithy


Joined: 12 Dec 2011
Posts: 448

PostPosted: Sat 16 Mar 2013, 07:26    Post_subject:  

This is what Proc/asound/usb/usb mixer says:

USB Mixer: usb_id=0x041e3f0a, ctrlif=0, ctlerr=0
Card: E-MU Systems, Inc. E-MU Tracker Pre | USB at usb-0000:00:1d.7-6, high speed
Unit: 4
Control: name="PCM Playback Volume", index=0
Info: id=4, control=2, cmask=0x3, channels=2, type="S16"
Volume: min=-25600, max=0, dBmin=-10000, dBmax=0
Unit: 4
Control: name="PCM Playback Switch", index=0
Info: id=4, control=1, cmask=0x0, channels=1, type="INV_BOOLEAN"
Volume: min=0, max=1, dBmin=0, dBmax=0
Unit: 12
Control: name="Clock rate Selector", index=0
Info: id=12, control=3, cmask=0x0, channels=1, type="U8"
Volume: min=0, max=5, dBmin=0, dBmax=0

Should there be a pcm slider for capure?(not clock capture)
I can't be sure, but it sounds like voip is "capturing" the sound of the clock.
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Smithy


Joined: 12 Dec 2011
Posts: 448

PostPosted: Tue 26 Mar 2013, 16:14    Post_subject:  

Just updating this:
Whilst the volume control does nothing on the tray, if an application has a volume control on it, VLC, MPLAYER and others, the volume does work.
And works very well with good resolution!
So mostly solved (unless an app doesn't have a volume control).
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darkcity


Joined: 23 May 2010
Posts: 2462
Location: near here

PostPosted: Sun 01 Dec 2013, 10:18    Post_subject:  

Is it possible ALSA can't control the sound level of your device. That is the case with Presonus Audiobox USB.

So like you say sound volume has to be controlled by software (if possible) or on the box?

Not ideal, but in the case on Presonus they don't officially support linux (even though they are planning products with linux embedded).

Another option is to install pulse audio, but that will potentially bugger up the Jack sound server whihc you may be using.

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