Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: alsa-driver (Ubuntu)
Status: New => Confirmed
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https://bugs.launchpad.net/bugs/641479
Title:
Surround Sound hisstles (hiss + whistle) when the volume is changed
Status in alsa-driver package in Ubuntu:
Confirmed
Bug description:
This bug has been troublesome since Karmic and also affects Lucid.
It's more likely a bug in pulseaudio than in alsa-driver.
Whenever pulseaudio changes the sound level, audio begins to hisstle.
It only clears up at max volume.
I've heard that using a 7.1 surround configuration resolves the issue,
but my card only supports up to 5.1
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.34-5.14-generic 2.6.34
Uname: Linux 2.6.34-5-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.22.1.
Architecture: amd64
Card0.Amixer.info:
Card hw:0 'NVidia'/'HDA NVidia at 0xfcf7c000 irq 16'
Mixer name : 'Nvidia GT220 HDMI'
Components : 'HDA:10de000a,10de0101,00100100'
Controls : 16
Simple ctrls : 4
Card1.Amixer.info:
Card hw:1 'Live'/'SB Live! 5.1 Dell OEM [SB0228] (rev.10, serial:0x80661102)
at 0xcc00, irq 19'
Mixer name : 'SigmaTel STAC9708,11'
Components : 'AC97a:83847608'
Controls : 224
Simple ctrls : 45
Date: Sat Sep 18 01:37:22 2010
InstallationMedia: Ubuntu 9.10 "Karmic Koala" - Release amd64 (20091027.1)
PackageArchitecture: all
ProcEnviron:
LANG=en_US.utf8
SHELL=/bin/bash
SelectedCard: 1 Live EMU10K1 - SB Live! 5.1 Dell OEM [SB0228]
SourcePackage: alsa-driver
Symptom: audio
Title: [EMU10K1 - SB Live! 5.1 Dell OEM [SB0228]] Surround problem
dmi.bios.date: 12/12/2007
dmi.bios.vendor: HP
dmi.bios.version: O11
dmi.board.name: ProLiant ML115 G1
dmi.board.vendor: HP
dmi.chassis.type: 7
dmi.chassis.vendor: HP
dmi.chassis.version: 1.0
dmi.modalias:
dmi:bvnHP:bvrO11:bd12/12/2007:svnHP:pnProLiantML115G1:pvr1.0:rvnHP:rnProLiantML115G1:rvr:cvnHP:ct7:cvr1.0:
dmi.product.name: ProLiant ML115 G1
dmi.product.version: 1.0
dmi.sys.vendor: HP
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