Public bug reported:
On my Samsung NC10, with RealTek ALC272 sound card, recording from the
internal mic always comes with a substantial hiss, however I fiddle with
the settings. Under Windows, there is no problem. This bug is similar to
#448859, but it is not the same: I have no trouble making audible
recordings, and I do not have to turn up the input gain (I have the
input set in PulseAudio to "unamplified"). The problem is simply that
there is always hiss on the input.
ProblemType: Bug
DistroRelease: Ubuntu 10.04
Package: alsa-source (not installed)
ProcVersionSignature: Ubuntu 2.6.32-21.31-generic 2.6.32.11+drm33.2
Uname: Linux 2.6.32-21-generic i686
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
ArecordDevices:
**** List of CAPTURE Hardware Devices ****
card 0: Intel [HDA Intel], device 0: ALC272 Analog [ALC272 Analog]
Subdevices: 1/1
Subdevice #0: subdevice #0
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: rrt 2362 F.... mpd
rrt 5828 F.... pulseaudio
Card0.Amixer.info:
Card hw:0 'Intel'/'HDA Intel at 0xf0340000 irq 22'
Mixer name : 'Realtek ALC272'
Components : 'HDA:10ec0272,144dca00,00100001'
Controls : 18
Simple ctrls : 11
Date: Fri Apr 16 12:24:26 2010
ProcEnviron:
SHELL=/bin/bash
PATH=(custom, user)
LANG=en_GB.UTF-8
SourcePackage: alsa-driver
dmi.bios.date: 09/08/2009
dmi.bios.vendor: Phoenix Technologies Ltd.
dmi.bios.version: 11CA.M015.20090908.RHU
dmi.board.name: NC10
dmi.board.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.board.version: Not Applicable
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: SAMSUNG ELECTRONICS CO., LTD.
dmi.chassis.version: N/A
dmi.modalias:
dmi:bvnPhoenixTechnologiesLtd.:bvr11CA.M015.20090908.RHU:bd09/08/2009:svnSAMSUNGELECTRONICSCO.,LTD.:pnNC10:pvrNotApplicable:rvnSAMSUNGELECTRONICSCO.,LTD.:rnNC10:rvrNotApplicable:cvnSAMSUNGELECTRONICSCO.,LTD.:ct10:cvrN/A:
dmi.product.name: NC10
dmi.product.version: Not Applicable
dmi.sys.vendor: SAMSUNG ELECTRONICS CO., LTD.
** Affects: alsa-driver (Ubuntu)
Importance: Undecided
Status: New
** Tags: apport-bug i386 lucid
--
Samsung NC10 internal mic always hissing
https://bugs.launchpad.net/bugs/564613
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