problem of sampling rate with "default" output

[Guillaume Millet]

I discovered the problem by listening a linear chirp on wikipedia, http://en.wikipedia.org/wiki/File:Linchirp.ogg. At about 1 sec, a second chirp can be heard. On the bad quality recording attached, it's hearable from 1.5 sec. I recorded it with Audacity playing the chirp sound in the same time. The playing device of ALSA in Audacity is set on "default". When I change it for "dmix", the problem disappears. I observed the same in VLC, when I change the output device for ALSA from "predefined" (problem) to "HDA Intel: ALC269 Analog (hw:0,0)". I suspect a problem of sampling rate, for example between 44100 and 48000 Hz, in alsa configuration.

ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
ProcVersionSignature: Ubuntu 2.6.32-19.28-generic 2.6.32.10+drm33.1
Uname: Linux 2.6.32-19-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
 **** List of PLAYBACK Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 0/1
   Subdevice #0: subdevice #0
Architecture: amd64
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC269 Analog [ALC269 Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xfcbf4000 irq 22'
   Mixer name : 'Realtek ALC269'
   Components : 'HDA:10ec0269,10431483,00100004'
   Controls : 14
   Simple ctrls : 9
Card1.Amixer.info:
 Card hw:1 'NVidia'/'HDA NVidia at 0xfe97c000 irq 16'
   Mixer name : 'Nvidia ID b'
   Components : 'HDA:10de000b,10de0101,00100100'
   Controls : 0
   Simple ctrls : 0
Card1.Amixer.values:

Date: Sun Apr 11 01:30:34 2010
InstallationMedia: Kubuntu 9.10 "Karmic Koala" - Release amd64 (20091027)
PackageArchitecture: all
ProcEnviron:
 LANGUAGE=fr_FR:fr:en_GB:en
 PATH=(custom, user)
 LANG=fr_FR.UTF-8
 SHELL=/bin/bash
SourcePackage: alsa-driver
dmi.bios.date: 11/24/2009
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 208
dmi.board.asset.tag: ATN12345678901234567
dmi.board.name: UL80VT
dmi.board.vendor: ASUSTeK Computer Inc.
dmi.board.version: 1.0
dmi.chassis.asset.tag: ATN12345678901234567
dmi.chassis.type: 10
dmi.chassis.vendor: ASUSTeK Computer Inc.
dmi.chassis.version: 1.0
dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr208:bd11/24/2009:svnASUSTeKComputerInc.:pnUL80VT:pvr1.0:rvnASUSTeKComputerInc.:rnUL80VT:rvr1.0:cvnASUSTeKComputerInc.:ct10:cvr1.0:
dmi.product.name: UL80VT
dmi.product.version: 1.0
dmi.sys.vendor: ASUSTeK Computer Inc.

[Daniel T Chen (crimsun)]

Please use: pacmd set-log-level 4
then: paplay /path/to/Linchirp.ogg
then: grep pulseaudio\\[ /var/log/user.log > ~/verbose.log

Please then attach ~/verbose.log to this bug report.

[Guillaume Millet (guimillet)]

But I don't use pulseaudio, I'm on Kubuntu; phonon-backend-xine and phonon-backend-gstreamer are installed and the problem occurs with both. I installed pulseaudio to test with it and the problem did not occur with pulseaudio (so I think that the report from paplay won't be useful here, but I may be wrong).

[dino99 (9d9)]

This version is no longer supported; EOL reached since a while.