do you mean sound is distorted when master playback volume is over 0dB ?
!!Amixer output !!------------- !!-------Mixer controls for card 0 [Intel] Card hw:0 'Intel'/'HDA Intel at 0xf4700000 irq 46' Mixer name : 'Analog Devices AD1981' Components : 'HDA:11d41981,103c309f,00100200 HDA:14f12bfa,103c309f,00090000' Controls : 13 Simple ctrls : 9 Simple mixer control 'Master',0 Capabilities: pvolume pswitch pswitch-joined penum Playback channels: Front Left - Front Right Limits: Playback 0 - 63 Mono: Front Left: Playback 49 [78%] [-18.00dB] [on] Front Right: Playback 49 [78%] [-18.00dB] [on] -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to pulseaudio in Ubuntu. https://bugs.launchpad.net/bugs/1183145 Title: sound is distorted Status in “pulseaudio” package in Ubuntu: New Bug description: When you increase the volume to 70-80 % and above, there's a little sound distortion (it can be heard especially when human voice is being listened). ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: pulseaudio 1:3.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-22.33-generic 3.8.11 Uname: Linux 3.8.0-22-generic i686 ApportVersion: 2.9.2-0ubuntu8 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: miroslav 1960 F.... pulseaudio Date: Thu May 23 01:19:03 2013 InstallationDate: Installed on 2013-05-15 (7 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424) MarkForUpload: True PulseList: Error: command ['pacmd', 'list'] failed with exit code 1: Home directory not accessible: Permission denied No PulseAudio daemon running, or not running as session daemon. SourcePackage: pulseaudio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/11/2008 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: 68YAF Ver. F.1D dmi.board.name: 309F dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 54.3D dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvr68YAFVer.F.1D:bd07/11/2008:svnHewlett-Packard:pn:pvrF.1D:rvnHewlett-Packard:rn309F:rvrKBCVersion54.3D:cvnHewlett-Packard:ct10:cvr: dmi.product.version: F.1D dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1183145/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : [email protected] Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
