also I've read we must have the IGAin control all the way up to 100 ... you can change this with aumix.
But we still need to control the AC97 level ... hope someone is able to see this and give us a hand.
On 25/02/2008, Phil Rhoades <phil@xxxxxxxxxxxxx> wrote:
Daniel,
I also do not see this control with alsamixer and the only thing I see
on my similar (non-working) system with "amixer -c 0" is:
Simple mixer control 'IEC958 Playback AC97-SPSA',0
Capabilities: volume volume-joined
Playback channels: Mono
Capture channels: Mono
Limits: 0 - 3
Mono: 3 [100%]
Phil.
On Mon, 2008-02-25 at 15:52 +0000, Daniel Sanabria wrote:
> any ideas? ... anyone?
>
> On 17/02/2008, Daniel Sanabria <sanabria.d@xxxxxxxxx> wrote:
> now from http://alsa.opensrc.org/index.php/Record_from_mic I
> read the following:
>
> Comment from reader: For me, the instructions above did not
> still cut it. I had to turn a control "AC97" to 100% (in
> addition to Mic and Capture to 100%).
>
> I'm I supposed to see the AC97 control? where can I find it?
>
>
> On 17/02/2008, Daniel Sanabria <sanabria.d@xxxxxxxxx> wrote:
> Yes this is a PC mic (plantronics) and you're right it
> doesn't have any source of power, it takes it from the
> PC. However setting V_REFOUT to 3,7 or 2.25 doesn't
> seem to make a difference.
>
> On 16/02/2008, James Shatto <Shadow_7@xxxxxxxxxxxxx>
> wrote:
> > Simple mixer control 'V_REFOUT',0
> > Capabilities: enum
> > Items: 'High-Z' '3.7 V' '2.25 V' '0 V'
> > Item0: '0 V'
>
> What type of mic are we talking? Electret
> type mics(the kind that most PC style mics
> seem to be/use) need a voltage(called a bias
> voltage, or plug-in power for voice
> recorders). Without the voltage you need a
> battery box. Set it to 3.7V, if you
> can. 2.25 V should also work. 0V and High-Z
> would be my last choices.
>
> HTH
>
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Philip Rhoades
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