Pushed upstream:
http://cgit.freedesktop.org/pulseaudio/pulseaudio/commit/?id=e6051cdf8db554c0bbd4257959c37a7ecc9c10c5
** Changed in: pulseaudio (Ubuntu)
Status: Triaged => Fix Committed
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https://bugs.launchpad.net/bugs/1085402
Title:
PulseAudio overuses 'Boost' control of microphone input producing bad
audio quality
Status in “pulseaudio” package in Ubuntu:
Fix Committed
Bug description:
Om my notebook PulseAudio detects 2 ports on embedded sound card:
1) analog-input-microphone-internal
2) analog-input-microphone
PulseAudio module "module-switch-on-port-available" chooses as default
port #2 after external microphone is attached and switches back to
port #1 after external mike removal.
This behavior seems right.
However, if I record sound with auto selected port, audio quality is
very poor. There is loud noise in background. But if I switch to
"wrong" port audio quality becomes great. E.g. I have to manually
select "analog-input-microphone-internal" port when I attach external
mike and vice versa.
Example of record:
http://self-perfection.homeip.net/files/2012/external_ru.flac (652 KiB)
This record is made via headset microphone. During first half of record
source port analog-input-microphone was selected then i switched to port
analog-input-microphone-internal.
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: pulseaudio 1:2.1-0ubuntu4
ProcVersionSignature: Ubuntu 3.5.0-18.29-generic 3.5.7
Uname: Linux 3.5.0-18-generic x86_64
ApportVersion: 2.6.1-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: self 2150 F.... pulseaudio
self 2255 F.... xfce4-volumed
Date: Sat Dec 1 16:34:31 2012
InstallationDate: Installed on 2012-07-01 (152 days ago)
InstallationMedia: Xubuntu 12.04 LTS "Precise Pangolin" - Release amd64
(20120425)
MarkForUpload: True
SourcePackage: pulseaudio
UpgradeStatus: Upgraded to quantal on 2012-10-21 (40 days ago)
dmi.bios.date: 04/03/2012
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 06QB
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: 300E4Z/300E5Z/300E7Z
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: FAB1
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 9
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: 0.1
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr06QB:bd04/03/2012:svnSAMSUNGELECTRONICSCO.,LTD.:pn300E4Z/300E5Z/300E7Z:pvr0.1:rvnSAMSUNGELECTRONICSCO.,LTD.:rn300E4Z/300E5Z/300E7Z:rvrFAB1:cvnSAMSUNGELECTRONICSCO.,LTD.:ct9:cvr0.1:
dmi.product.name: 300E4Z/300E5Z/300E7Z
dmi.product.version: 0.1
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
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