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** Changed in: alsa-driver (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1020564
Title:
[USB-Audio - UA-4FX, playback] Underruns, dropouts or crackling sound
Status in alsa-driver package in Ubuntu:
Incomplete
Bug description:
Description: Ubuntu 12.04 LTS
Release: 12.04
Problem is in alsa-driver 1.0.24
I expected the sound to be as good as it was in Ubuntu 10.04, which is
also installed on this computer, but get crackles overlaid on the
sound at random intervals, especially bad if there is a lot of screen
activity (e.g. watching an MP4 file in Totem, or using Skype with
video).
ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: alsa-base 1.0.25+dfsg-0ubuntu1
ProcVersionSignature: Ubuntu 3.2.0-26.41-generic-pae 3.2.19
Uname: Linux 3.2.0-26-generic-pae i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 2.0.1-0ubuntu8
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC2: michael 2124 F.... pulseaudio
/dev/snd/controlC0: michael 2124 F.... pulseaudio
/dev/snd/pcmC0D0p: michael 2124 F...m pulseaudio
/dev/snd/controlC1: michael 2124 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'UA4FX'/'EDIROL UA-4FX at usb-0000:00:1d.2-2.4, full speed'
Mixer name : ''
Components : 'USB0582:00a3'
Controls : 1
Simple ctrls : 1
Card0.Amixer.values:
Simple mixer control 'MIDI Input Mode',0
Capabilities: enum
Items: 'High Load' 'Light Load'
Item0: 'Light Load'
Card1.Amixer.info:
Card hw:1 'Camera'/'Sonix Technology Co., Ltd. USB 2.0 Camera at
usb-0000:00:1d.7-1, high speed'
Mixer name : 'USB Mixer'
Components : 'USB0c45:62e0'
Controls : 2
Simple ctrls : 1
Card1.Amixer.values:
Simple mixer control 'Mic',0
Capabilities: cvolume cvolume-joined cswitch cswitch-joined penum
Capture channels: Mono
Limits: Capture 0 - 3328
Mono: Capture 1815 [55%] [25.08dB] [on]
Card2.Amixer.info:
Card hw:2 'Intel'/'HDA Intel at 0xefffc000 irq 43'
Mixer name : 'SigmaTel STAC9221 A1'
Components : 'HDA:83847680,102801ab,00103201'
Controls : 27
Simple ctrls : 14
CheckboxSubmission: fcc91fd10566b730f3440dab960d229e
CheckboxSystem: 2a6f54df59af338184485e85cbcf0d32
Date: Tue Jul 3 14:27:51 2012
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release i386
(20120423)
PackageArchitecture: all
ProcEnviron:
LANGUAGE=en_GB:en
PATH=(custom, user)
LANG=en_GB.UTF-8
SHELL=/bin/bash
SourcePackage: alsa-driver
Symptom: audio
Symptom_AlsaPlaybackTest: ALSA playback test through plughw:UA4FX successful
Symptom_Card: Built-in Audio - HDA Intel
Symptom_PulsePlaybackTest: PulseAudio playback test successful
Symptom_Type: Underruns, dropouts, or "crackling" sound
Title: [USB-Audio - UA-4FX, playback] Underruns, dropouts or crackling sound
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 08/15/2005
dmi.bios.vendor: Dell Inc.
dmi.bios.version: A00
dmi.board.name: 0RD203
dmi.board.vendor: Dell Inc.
dmi.chassis.type: 6
dmi.chassis.vendor: Dell Inc.
dmi.modalias:
dmi:bvnDellInc.:bvrA00:bd08/15/2005:svnDellInc.:pnDellDM051:pvr:rvnDellInc.:rn0RD203:rvr:cvnDellInc.:ct6:cvr:
dmi.product.name: Dell DM051
dmi.sys.vendor: Dell Inc.
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