Re: [GnomeMeeting-list] Logitech 4000 cameras and gnomemeeting

["sting sting" <zstingx hotmail com>]

hello,
some calrification if  may (I do understand more in video than audio):
you said:
"I don't know and I'm not using OSS anymore ;)"

I assume that  the "audio.o" driver with my logitech camera I use is   OSS 
compatible. (this I also
can figure from audio.c under /drivers/usb in the linux kernel)
(this driver resides under 
/lib/modules/linux-x.x.x/kernel/drivers/usb/audio.o)

Is there any alternatve for using this audio driver for this USB  camera?

regards,
sting





> From: Damien Sandras <damien sandras it-optics com>
> Reply-To: gnomemeeting-list gnome org
> To: gnomemeeting-list gnome org
> Subject: Re: [GnomeMeeting-list] Logitech 4000 cameras and gnomemeeting
> Date: Tue, 18 Nov 2003 17:37:16 +0100
>
> Le mar 18/11/2003 à 17:27, sting sting a écrit :
> > Thnxs ;
> > I had installed gnomemeeting on a RedHat 7.3 Linux . (with no patches to 
> the
> > kernel)
>
>
> Wow that must be a very old gnomemeeting...
>
> > I had tried it with 2 logitech 4000 cameras.
> > The video is very good.
> > regarding the Audio Quality:
> > The audio driver I use is the (kernel original) audio.o
> > I saw in the kernel log (which is /var/log/messages on RH7.3)
> > that the audio was recognized as dsp 14,35 which is /dev/dsp2.
> >
> > Note: ******the mixer is recognized as 14,16***************** !!
> >
> > (and indeed cat /dev/dsp2 yields a binary result and not a "no such 
> file").
>
> That's normal. There is no adequation between the mixer number and the
> device number. You could have more dsp's than mixers.
>
> > So I had configured gnomemeeting recoreder to be /dev/dsp2.
> > Now regarding the mixer, I have some problem.
> > when I do cat /dev/mixer0, cat /dev/mixer1 , cat /dev/mixer2, cat
> > /dev/mixer3 I get
> > cat: /dev/mixerN : no such file or directory.
> >
> > Well, I had tried to enter a blank field in the Recoreder Mixer filed 
> (it is
> > possible
> > in this version of gnomemeeting for RH7.3 , but it is impossiblle on the
> > later version
> > for RH9 since there you have to select from a list of mixers in a 
> combobox).
> >
> > The result is that I do have an unbearable echo which become more louder
> > during time .
> > (it ends up in something like a loud long beep)
> > Well , I assume that I should use a mixer and this causes the problem.
> > Mayne I miss some driver for the mixer ?
>
> No, the problem is that your microphone is too near of the speakers and
> webcam microphones record much noise of the background, so there is the
> echo. The best solution is to buy a headset (mine costs 10 Euros) and to
> use it instead of the speakers => no more echo
>
> > It seems to mt that somehow I should be able to get results
> > when performing cat /dev/mixerN (where N is 0 and 2 ?)
> >
>
> I don't know and I'm not using OSS anymore ;)
>
> > Truly  this problem is not a gnomemeeting problem but I hope
> > that somebody  who used logitech 4000 with gnomemeeting
> > as I am not an audio expert on Linux.
> > Another question : to make sure : is the Echo Cancelltion option I saw 
> in
> > setting
> > (in the RH9 version) is not relevant when using the logitech 4000 
> camera?
> > (is it only relvant
> > to Quicknet cards? )
>
> Yes, only relevant to quicknet cards.
>
> > regards,
> > sting
> >
> >
> >
> > >From: Damien Sandras <damien sandras it-optics com>
> > >Reply-To: gnomemeeting-list gnome org
> > >To: gnomemeeting-list gnome org
> > >Subject: Re: [GnomeMeeting-list] Logitech 4000 cameras and gnomemeeting
> > >Date: Tue, 18 Nov 2003 12:40:51 +0100
> > >
> > >Hi,
> > >
> > >Le mar 18/11/2003  12:29, sting sting a crit :
> > > > Hello,
> > > > I have a logitech 4000 camera with a built-in microphone.
> > > > my question is :
> > > > did anybody tried this camera with gnomemeeting ?
> > >
> > >Plenty of people.
> > >
> > > > did it went OK?
> > >
> > >Yes.
> > >
> > > > and regarding the sound quality - was it  OK?
> > >
> > >Yes.
> > >
> > > > did he had any echo ? (when hearing the voice with speakers)?
> > >
> > >No.
> > >
> > > > and in case he had - was there a solution/workaround for this 
> (besides
> > > > lowering the volume to a
> > > > minimim)?
> > >
> > >Use a headset.
> > >
> > > > regards,
> > > > sting
> > > >
> > > > _________________________________________________________________
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> > >--
> > >  _      Damien Sandras
> > >(o-
> > >//\     It-Optics s.a.
> > >v_/_    GnomeMeeting: http://www.gnomemeeting.org/
> > >         FOSDEM 2004:  http://www.fosdem.org
> > >         H.323 phone:  callto:ils.seconix.com/dsandras seconix com
> > >
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>  _      Damien Sandras
> (o-
> //\     It-Optics s.a.
> v_/_    GnomeMeeting: http://www.gnomemeeting.org/
>         FOSDEM 2004:  http://www.fosdem.org
>         H.323 phone:  callto:ils.seconix.com/dsandras seconix com
>
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