Launchpad has imported 1 comments from the remote bug at https://bugs.freedesktop.org/show_bug.cgi?id=54096.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2012-08-26T20:00:30+00:00 Agustin-6 wrote: Created attachment 66151 x = alsamixer pecentage for the PCM control. y = corresponding volume in dB. I have an ASUS P5KPL-1600 motherboard with a VIA VT1708B 8-Ch chip managed by snd-hda-intel. The volume control in pavucontrol, Gnome's sound preferences and all apps with flat-volume enabled is too non- lineal and just plain wrong. alsamixer has two useful controls for output volume: PCM: goes from -40.25dB in 0% through 0dB in 53% to 14dB (*with clipping*) in 100%. (This is not linear at all, see graph.png, attached.) Master: goes from 0dB in 0% (very quiet output) to 6.75dB (without any clipping, loud and clear) in 100% with 0.25dB = 3.75% increments. When, in PulseAudio 2.1, I set the volume in 100% it maxes out both PCM and Master, so I get a quite distorted sound. This is expected, but the scale is wrong: 100% is 0dB but it should be 14dB. The base should be at -14dB, or 58%, when PCM is at 0dB (53%) and Master at 6.75dB (100%), but it is at -20.75dB (45%), with Master and PCM at 0dB, with very quiet output. The difference in sound pressure between 45% and 53% is very large. Between -20.75dB (45%) and -68dB (7%) the volume does not change at all. All controls in alsamixer remain the same. Between -68dB (7%) and -108.24dB (2%) the PCM control goes down to zero, and any less than that results in muted output. This behaviour is quite strange and I don't know how much of it is pulseaudio's fault, how much is the alsa driver's and how much is mine. Thanks. Reply at: https://bugs.launchpad.net/ubuntu/+source/pulseaudio/+bug/1210129/comments/0 ** Changed in: pulseaudio Status: Unknown => Confirmed ** Changed in: pulseaudio Importance: Unknown => Medium -- 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/1210129 Title: Pulseaudio does not recognize sound levels correctly. Status in PulseAudio sound server: Confirmed Status in “pulseaudio” package in Ubuntu: Incomplete Bug description: When I am setting volume to 75-100% sounds is amplified and quality is very bad. Setting for "Unampified" in sound settings (which is placed around 50% of the bar) makes sound is almost unhearable. Sound is good and loud around 60% of volume. This is really annoying because setting volume from keyboard or sound indicator is useless -> volume up makes terrible sound, volume down only 10% to 50%(unamplified) makes there is almost no sound. ProblemType: Bug DistroRelease: Ubuntu 13.04 Package: pulseaudio 1:3.0-0ubuntu6 ProcVersionSignature: Ubuntu 3.8.0-27.40-generic 3.8.13.4 Uname: Linux 3.8.0-27-generic i686 ApportVersion: 2.9.2-0ubuntu8.1 Architecture: i386 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: ciastek 2109 F.... pulseaudio /dev/snd/pcmC0D0p: ciastek 2109 F...m pulseaudio Date: Thu Aug 8 15:18:41 2013 InstallationDate: Installed on 2013-06-12 (56 days ago) InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release i386 (20130424) MarkForUpload: True ProcEnviron: TERM=xterm PATH=(custom, no user) LANG=pl_PL.UTF-8 SHELL=/bin/bash 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 Symptom: audio UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 06/11/2008 dmi.bios.vendor: Phoenix Technologies, LTD dmi.bios.version: ASUS P5N73-AM ACPI BIOS Revision 0201 dmi.board.name: P5N73-AM dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: 2.XX dmi.chassis.asset.tag: 123456789000 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnPhoenixTechnologies,LTD:bvrASUSP5N73-AMACPIBIOSRevision0201:bd06/11/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnP5N73-AM:rvr2.XX:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/pulseaudio/+bug/1210129/+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
