Re: Unable to microphone

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On 06/05/11 17:06, Marko Vojinovic wrote:
> On Sunday 05 June 2011 19:32:20 JD wrote:
>> On F14.
>> Pulseaudio daemion is running.
>> I can hear media playing.
>> But I am unable to use microphone.
>> i,e. no matter what app I use the mic
>> with, (as in skype, or  gnome-sound-recorder
>> or aurecord), my mic does not pick up my voice.
>> I have a built-in and an external. Neither one
>> is picking my voice.
>> gnome-volume-control-applet shows me that
>> I can select mic1 or mic2 as input.
>> Neither one is working.
>> I wonder if this is a pulseaudio issue?
> I doubt it's a pulseaudio issue.
>
> What is the output of "arecord -l"?
>
> Are you sure that microphone is not muted or something? The only safe way to
> check that is to run alsamixer in the terminal, press F6 to choose the
> soundcard, select the actual hardware soundcard in the pop-up menu instead of
> the "default" (which represents the pulseaudio mixer), press F4 to see capture
> devices, and play around with the settings --- unmute everything, boost mic
> gain, etc. Then press ESC to exit alsamixer and try again with your favorite
> app.
>
> Open the app, begin recording, open pavucontrol, go to "recording" and "input
> devices" tabs, and boost the capture volume if needed. Also check there that
> everything is unmuted.
>
> If that doesn't do it, it's an ALSA problem with the driver for your card.
> Google is your friend.
>
> I don't see any other place where a mic could fail. Also, if you are unsure of
> the proper config of your recording app (they often can be misconfigured by
> default, skype being the typical example), use arecord --- that should always
> work if your driver is ok. Read the "man arecord" for examples on how to use
> it.
>
$ arecord -l
**** List of CAPTURE Hardware Devices ****
card 0: SI7012 [SiS SI7012], device 0: Intel ICH [SiS SI7012]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 0: SI7012 [SiS SI7012], device 1: Intel ICH - MIC ADC [SiS SI7012 - 
MIC ADC]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
card 1: Modem [SiS SI7013 Modem], device 0: Intel ICH - Modem [SiS 
SI7013 Modem - Modem]
   Subdevices: 1/1
   Subdevice #0: subdevice #0

Pressing F6 in Asamixer shows the mic unmuted and at  5% volume

When I press F4, the word Capture (in red) appears above the mic.

It is interesting to note that GMixer->Rcording  tab says the device
is called Capture
Should it not be Mic ?? How/where is GMixer configured? Why
is it picking the device called Capture instead of Mic?

pavucontrol shows the client to be arecord.
But arecord does not record anything.
aplay foobar.wav is all silent, even with boost 20db on.

If it is an alsa driver problem, should it not have been there
prior to pulseaudio?
Prior to pulseaudio, I had no problems with record and playback.

This audio chipset is
  Intel ICH Modem 0000:00:02.6: PCI INT C -> GSI 18 (level, low) -> IRQ 18
  Intel ICH 0000:00:02.7: PCI INT C -> GSI 18 (level, low) -> IRQ 18
  intel8x0_measure_ac97_clock: measured 50428 usecs (2426 samples)
  intel8x0: clocking to 48000

$ lspci | grep aud
00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS] 
AC'97 Sound Controller (rev a0)

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