Public bug reported:
Binary package hint: pulseaudio
Ubuntu 10.04 Lucid Lynx Alpha 2
pulseaudio 0.9.21
Three sound devices:
1) Internal HDA Intel
2) PCI Creative SB Audigy 1 ES
3) SAA7134 chip in analog TV tuner card.
By default, PA chooses the first one to output sound.
Then I manually select Audigy for output, then select "Analog Surround 5.1
Output + Analog Stereo Input" for it. Then start playing "InTheCircle.oga" from
~/examples/ folder by Totem. It sounds relatively OK. Then either changing
Volume, Balance or Fade causes high hiss and noise from all speakers. Music is
still playing in background. Changing the controls back don't help.
This happens on all "Analog Surround 5.0 Output" profiles, all "Analog
Surround 5.1 Output" profiles and all "Analog Surround 4.1 Output"
profiles.
4.0, Stereo and Mono profiles are OK.
On my main system (Ubuntu 9.10) I don't use PulseAudio at all and Audigy
works very well with pure ALSA.
** Affects: pulseaudio (Ubuntu)
Importance: Undecided
Status: New
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Hiss and noise when adjusting Volume, Balance or Fade in Surround 4.1, 5.0, 5.1
profiles
https://bugs.launchpad.net/bugs/525705
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