Re: How to debug microphone?

[shams <shamska@gmail.com>]

On Wed, 27 Apr 2011 18:29:56 +0000 (UTC), Camaleón wrote:
> On Wed, 27 Apr 2011 20:15:53 +0200, Felix Natter wrote:
> 
>> Camaleón writes:
>>
>>> Try with a more simple approach:
>>>
>>> # will start recording from the default input source arecord -d 
10
>>> /tmp/foo.wav
>>>
>>> And when it finishes, play it with:
>>>
>>> aplay /tmp/foo.wav
>>
>> This records only noise.
> 
> "Noise" is something :-P
> 
>> Here is the output of arecord -l:
>> **** List of CAPTURE Hardware Devices ****
>> card 0: Intel [HDA Intel], device 0: STAC92xx Analog [STAC92xx 
Analog]
>>   Subdevices: 2/2
>>   Subdevice #0: subdevice #0
>>   Subdevice #1: subdevice #1
> 
> - Check that you are connecting the microphone into the right 
socket 
> (usually colored as pink on desktop computers).
> 
> - Check that the mic volume is set to a high level.
> 
> - Check that the system has configured the proper default mic 
device as 
> input source (there can be more than one: front, rear... and must 
match 
> to the one you have your mic connected to).
> 
> If none of the above works, you can try to define a "model=" for 
your 
> sound card (STAC92xx).
> 
> Greetings,
> 
> -- 
> Camaleón

Run the alsamixer and adjust the mic volumes, as root in a terminal 
type:
alsamixer