Re: sound recording on dell laptop

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On Thu, Oct 18, 2007 at 09:43:31 +0100, John O Laoi wrote:
On 10/17/07, Florian Kulzer wrote:
Please send the full
output of amixer so that we can see the settings of the capture
channels.

Here it is Florian:

# amixer
Simple mixer control 'Master',0
Capabilities: pvolume pswitch
Playback channels: Front Left - Front Right
Limits: Playback 0 - 31
Mono:
Front Left: Playback 24 [77%] [on]
Front Right: Playback 24 [77%] [on]
Simple mixer control 'PCM',0
Capabilities: pvolume
Playback channels: Front Left - Front Right
Limits: Playback 0 - 255
Mono:
Front Left: Playback 230 [90%]
Front Right: Playback 230 [90%]
Simple mixer control 'Capture',0
Capabilities: cvolume cswitch
Capture channels: Front Left - Front Right
Limits: Capture 0 - 15
Front Left: Capture 12 [80%] [on]
Front Right: Capture 12 [80%] [on]
Simple mixer control 'Capture Mux',0
Capabilities: volume
Playback channels: Front Left - Front Right
Capture channels: Front Left - Front Right
Limits: 0 - 4
Front Left: 0 [0%]
Front Right: 0 [0%]
Simple mixer control 'Input Source',0
Capabilities: enum
Items: 'Mic' 'Line'
Item0: 'Mic'

Did you try to turn up "Capture Mux" and/or to switch "Input Source"
from "Mic" to "Line"? Running "alsamixer" will give you direct access to
these controls. (Use the cursors keys to move and change volume, TAB to
switch between playback and capture channels, "M" to toggle mute, and
SPACE to switch capture on and off.)

After changing settings, I would run

arecord -d 5 -f cd -t wav test.wav

to record for 5 seconds and then

aplay test.wav

to see if you were successful. You can also run a media player to
produce some sound and see if you can record that. This might help you
to figure out how the different settings work. If you can capture the
sound that alsa plays but nothing from the microphone then maybe the
microphone is broken.

--
Regards, | http://users.icfo.es/Florian.Kulzer
Florian |


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