Re: [Ekiga-list] Bad sound from mic in Windows Ekiga

["Dave Higton" <DAVE HIGTON nice com>]

> -----Original Message-----
> From: ekiga-list-bounces gnome org 
> [mailto:ekiga-list-bounces gnome org] On Behalf Of Damien Sandras
> Sent: 2007 October 23 17:07
> To: Ekiga mailing list
> Subject: Re: [Ekiga-list] Bad sound from mic in Windows Ekiga
> 
> Hello,
> 
> Le mardi 23 octobre 2007 à 16:12 +0100, Dave Higton a écrit :
> > I've just deleted my Ekiga installation (which came from
> > ekiga-setup-2.0.9-BETA.exe, and on which I never got more 
> than a buzz
> > from the microphone) and replaced it from 
> ekiga-setup-2.0.11-BETA.exe.
> > This is an improvement, i.e. it's not quite as disastrous; 
> I can hear my
> > voice, though with a bad buzz added, and probably even 
> modulated by the
> > buzz.  I'm referring to what I hear when I run the audio test in the
> > installation process.
> > 
> > I can hear other sounds in the headphones OK, so I know 
> that audio out
> > is working OK.
> > 
> > I have the impression that there's a mismatch in the 
> sampling rates.  I
> > opted to install with a sample rate of 8000, which wasn't 
> offered in the
> > list, it had to be a custom sample rate.  I need 8000 as I 
> need to be
> > compatible with common telecom sample rates.
> > 
> > I think my next step will have to be to feed in a signal 
> from a signal
> > generator and look at the output with an oscilloscope while 
> running the
> > test.
> > 
> > OS is Windows XP with a full set of updates.  The sound system is
> > Realtek AC97 Audio for microphone and playback.
> > 
> > Can anyone suggest what might be done to fix the problem?  
> Have others
> > experienced the same?
> 
> The sound audio test runs at 16 kHz. But when making calls, 
> it will use
> 8 kHz or 16 kHz depending on the codec being used.
> 
> I can not really help for your audio problem though, it seems 
> to be some
> kind of hardware driver problem.

I don't think so.  I just used Cool Edit 96 to record a few
seconds of my voice and play it back.  This uses the same
drivers as does Ekiga - but Cool Edit records and replays
fine.  I set Cool Edit to record in 8 bit mono at 8000 Hz.

It has to be something about the way Ekiga uses the drivers,
doesn't it?

Dave


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