[ALSA - driver 0002142]: no more microphone

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



A NOTE has been added to this issue.
======================================================================
<https://bugtrack.alsa-project.org/alsa-bug/view.php?id=2142> 
======================================================================
Reported By:                piem
Assigned To:                tiwai
======================================================================
Project:                    ALSA - driver
Issue ID:                   2142
Category:                   PPC - powermac
Reproducibility:            always
Severity:                   major
Priority:                   normal
Status:                     assigned
Distribution:               Debian
Kernel Version:             2.6.17-rc3
======================================================================
Date Submitted:             05-22-2006 12:12 CEST
Last Modified:              06-12-2006 17:03 CEST
======================================================================
Summary:                    no more microphone
Description: 
I haven't been able to access the microphone on my iBook G4 since at least
2.6.12 and up to 2.6.17-rc3. The chip is a Snapper, and microphone
recording used to be supported. Debian package alsa-utils 1.0.11-2 is
installed.

$ cat /proc/asound/cards
 0 [Snapper        ]: PMac Snapper - PowerMac Snapper
                      PowerMac Snapper (Dev 38) Sub-frame 0

$ cat /proc/cpuinfo 
processor       : 0
cpu             : 7447A, altivec supported
clock           : 533.333000MHz
revision        : 0.1 (pvr 8003 0101)
bogomips        : 36.73
timebase        : 18432000
platform        : PowerMac
machine         : PowerBook6,5
motherboard     : PowerBook6,5 MacRISC3 Power Macintosh 
detected as     : 287 (iBook G4)
pmac flags      : 0000001b
L2 cache        : 512K unified
pmac-generation : NewWorld

======================================================================

----------------------------------------------------------------------
 bz31 - 06-10-06 18:56 
----------------------------------------------------------------------
Hi,

I found how to record !
I must use two channels. One channel doesn't work.

Using rec:
$ rec -c 2 test.wav
$ play test.wav

Using audacity:
Edit ---> Preferences --> Channels: 2(stereo)
Then I can record from microphone

Note: In audacity, when recording, I see 
L
R -----
the input level meter.
Only Right channel R works.
The Left channel dosen't works. Maybe this is why we can't record mono
sound.

----------------------------------------------------------------------
 piem - 06-12-06 17:03 
----------------------------------------------------------------------
i know the microphone is mono, but i still can't capture at all.

Bin, what kernel / alsa versions are you using?

Issue History
Date Modified  Username       Field                    Change              
======================================================================
05-22-06 12:12 piem           New Issue                                    
05-22-06 12:12 piem           Distribution              => Debian          
05-22-06 12:12 piem           Kernel Version            => 2.6.17-rc3      
06-10-06 09:38 bz31           Issue Monitored: bz31                        
06-10-06 18:56 bz31           Note Added: 0010147                          
06-12-06 17:03 piem           Note Added: 0010170                          
======================================================================




_______________________________________________
Alsa-devel mailing list
Alsa-devel@xxxxxxxxxxxxxxxxxxxxx
https://lists.sourceforge.net/lists/listinfo/alsa-devel

[Index of Archives]     [ALSA User]     [Linux Audio Users]     [Kernel Archive]     [Asterisk PBX]     [Photo Sharing]     [Linux Sound]     [Video 4 Linux]     [Gimp]     [Yosemite News]

  Powered by Linux