Public bug reported:
1.
Ubuntu DTS (movie) sound (trough Alsa or Pulse) at low frequencies are severely
distorted.
This problem has persisted for several Ubuntu releases. (win7 does not have
this problem).
2.
I have an Asus Xonar Essence STX (pci-e) sound card/headphone amp. In ubuntu
10.10 it was possible to adjust the impedance level of the headphones in the
preferred mixer application (i.e. Gnome-Alsa mixer). This very, very important
adjustment option have for reasons unknown been removed after Ubuntu 10.10.
Is it possible to get this feature back?
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-32.51-generic 3.2.30
Uname: Linux 3.2.0-32-generic x86_64
NonfreeKernelModules: nvidia
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu14
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: peter 1963 F.... pulseaudio
/dev/snd/controlC0: peter 1963 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'NVidia'/'HDA NVidia at 0xfe9fc000 irq 17'
Mixer name : 'Nvidia GPU 14 HDMI/DP'
Components : 'HDA:10de0014,10de0101,00100100'
Controls : 24
Simple ctrls : 4
Card1.Amixer.info:
Card hw:1 'STX'/'Asus Virtuoso 100 at 0xd800, irq 16'
Mixer name : 'AV200'
Components : 'PCM1792A CS5381 AV200'
Controls : 24
Simple ctrls : 14
Date: Thu Nov 15 18:23:35 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
PackageArchitecture: all
ProcEnviron:
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:STX successful
Symptom_Card: CMI8788 [Oxygen HD Audio] - Xonar STX
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Digital clip or distortion, or "overdriven" sound
Title: [AV200 - Xonar STX, playback] Sound is distorted
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 11/20/2007
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 0901
dmi.board.asset.tag: To Be Filled By O.E.M.
dmi.board.name: Maximus Formula
dmi.board.vendor: ASUSTeK Computer INC.
dmi.board.version: Rev 1.xx
dmi.chassis.asset.tag: Asset-1234567890
dmi.chassis.type: 3
dmi.chassis.vendor: Chassis Manufacture
dmi.chassis.version: Chassis Version
dmi.modalias:
dmi:bvnAmericanMegatrendsInc.:bvr0901:bd11/20/2007:svnSystemmanufacturer:pnMaximusFormula:pvrSystemVersion:rvnASUSTeKComputerINC.:rnMaximusFormula:rvrRev1.xx:cvnChassisManufacture:ct3:cvrChassisVersion:
dmi.product.name: Maximus Formula
dmi.product.version: System Version
dmi.sys.vendor: System manufacturer
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug precise running-unity third-party-packages
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https://bugs.launchpad.net/bugs/1079279
Title:
Ubuntu 12.04 sound [AV200 - Xonar STX, playback] Sound is distorted
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