LinuxQuestions.org
Go Job Hunting at the LQ Job Marketplace
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Software
User Name
Password
Linux - Software This forum is for Software issues.
Having a problem installing a new program? Want to know which application is best for the job? Post your question in this forum.

Notices

Reply
 
Search this Thread
Old 03-26-2011, 10:20 AM   #1
acc_kc
LQ Newbie
 
Registered: Mar 2011
Location: /usr/share/zoneinfo/Europe/Prague
Distribution: Gentoo Linux
Posts: 3

Rep: Reputation: 0
Pulseaudio and more than 1 channel


Greetings,

I've decided to give PulseAudio a try and since it is working almost without any problems; the only problem I haven't been able to solve (even after some searching through the Internet) is this one:

At the moment I've got only 1 mixer channel for output, called Internal Audio Analog Stereo. Now this channel controls both the volume going to the integrated speakers of my notebook and to headphones as well. What I was trying to do is to separate those channels in the same way how ALSA does it without PulseAuio.

ALSA Situation without PulseAudio:
~ Master
~ Speaker
~ PCM
~ Front

ALSA with PulseAudio:
~ Master (controls everything)

I was hoping to use the Master and Speaker in PulseAudio. My attempts were unsuccessful, hopefully some of you will help me out here .

Here are some tech data about my distro, ALSA, PulseAudio and sound card:

Linux Distro info + PulseAudio USE Flags:
Code:
Distro: Gentoo Linux

$ uname -srmp
Linux 2.6.37-tuxonice x86_64 Intel(R) Core(TM) i7 CPU Q 720 @ 1.60GHz

$ eix pulseaudio
[I] media-sound/pulseaudio
...
     Installed versions:  0.9.22{tbz2}(15:01:38 03/26/11)(X alsa asyncns avahi caps dbus glib ipv6 lirc tcpd udev -bluetooth -doc -gnome -jack -libsamplerate -oss -realtime -system-wide -test)

Alsa build in-kernel, not as alsa-driver

$ lspci | grep Audio
00:1b.0 Audio device: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio (rev 05)
01:00.1 Audio device: nVidia Corporation High Definition Audio Controller (rev a1)
ALSA + PulseAudio:
Code:
$ amixer
Simple mixer control 'Master',0
  Capabilities: pvolume pswitch pswitch-joined penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 65536
  Mono:
  Front Left: Playback 25355 [39%] [on]
  Front Right: Playback 25355 [39%] [on]
ALSA:
Code:
$ amixer -c0 # only relevant channels pasted
Simple mixer control 'Master',0
  Capabilities: pvolume pvolume-joined pswitch pswitch-joined penum
  Playback channels: Mono
  Limits: Playback 0 - 64
  Mono: Playback 32 [50%] [-24.00dB] [on]
Simple mixer control 'Speaker',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]
Simple mixer control 'PCM',0
  Capabilities: pvolume penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 255
  Mono:
  Front Left: Playback 252 [99%] [0.60dB]
  Front Right: Playback 252 [99%] [0.60dB]
Simple mixer control 'Front',0
  Capabilities: pvolume pswitch penum
  Playback channels: Front Left - Front Right
  Limits: Playback 0 - 64
  Mono:
  Front Left: Playback 64 [100%] [0.00dB] [on]
  Front Right: Playback 64 [100%] [0.00dB] [on]
The output of alsainfo can be found here: link

Thank you for any suggestions.
 
Old 03-26-2011, 02:49 PM   #2
smoker
Senior Member
 
Registered: Oct 2004
Distribution: Fedora Core 4, 12, 13, 14, 15, 17
Posts: 2,279

Rep: Reputation: 248Reputation: 248Reputation: 248
I realise you are using Gentoo, but there are several PulseAudio utilities available as you can see from the second code window in this post.

pavucontrol is probably the one you're after.
 
1 members found this post helpful.
Old 03-26-2011, 04:51 PM   #3
acc_kc
LQ Newbie
 
Registered: Mar 2011
Location: /usr/share/zoneinfo/Europe/Prague
Distribution: Gentoo Linux
Posts: 3

Original Poster
Rep: Reputation: 0
Oh, indeed.

Preforming ~amd64 update of the utility in question and restart of PulseAudio is all it took.
Thank you, this solved my problem.

Best,
ck
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is Off
HTML code is Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Converting 6 channel audio to 2 channel audio in a MKV file J_Humphrey Linux - Software 9 10-21-2013 04:27 AM
[SOLVED] Squeeze + Pulseaudio + Alsa and USB Midi device causes Pulseaudio crash mad4linux Debian 1 01-26-2011 03:57 AM
Winecfg crashes on sound tab with Pulseaudio and no 'sounddrivers' without pulseaudio William (Dthdealer) Linux - Software 5 06-13-2010 07:30 AM
AirSnort works on only one channel - channel 11 kchhabria Linux - Wireless Networking 0 12-21-2004 03:53 PM
Hard drive in primary channel showing in secondary channel Ale Linux - Hardware 2 02-20-2004 11:39 AM


All times are GMT -5. The time now is 09:38 PM.

Main Menu
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
identi.ca: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration