Hello,

I had tried the logitech 4000 pro on Linux with the pwc and pwcx  driver.

You get good results for a CIF image (352x288).
The quality is much higher comparing to logitech quickcam.

I did not tried it against NetMeeting.

The SW I tried was mainly gnomemeeting.

Regarding the Audio : I had tried the built in microphone in
this camera.

When you use a headset - the quality is reasonable.

When you try to use spekaers on both sides - there is an echo which
becomes stronger during time  (until it is simply unbearable shrike).

(BTW, this is a known phenomenon which happened to me also in NetMeeting but
it seems to me that on Skype the problem is really reduced; If I am not wrong they use
sw echo chacellation mechanisms of IPGlobal (which is commercial) and as I know
there is no OpenSource VideoConference projects with Echo Chancellation ; I had looked in GnomeMeeting newsgroup and
I saw that this probelm is with no real solution (except the advice to lower the speakers,
which not really helps).


And BTW, probably the sensor is very sensitive - (It is a SONY sensor l at least that is waht you can see in the kernel log) - the quality of this WebCam in almost total darkness in unbelievable.

I tried it on 2.4 mhz and also on 700 Mhz Intel machines and
it seems enough horsepower for the codecs.

I also tried it with opensource ophone 1.4.1
http://www.openh323.org/code.html
but the results are not as good as gnomemeeting.


Hope this helps, Rami Rosen







From: Cyril Scetbon <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
Subject: Quickcam 4000 pro
Date: Thu, 09 Sep 2004 08:19:57 +0200

Hi all,

I would like to get feedback about using this webcam under linux.
Which soft was used ? Have you succeeded in communicating with windows users? (gnomemeeting, others ?)
In using the integrated micro (feedback from others webcam are welcomed) ?


Thanks.

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