rami rosen wrote:
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).
yeah, I noticed it :-( that's why I don't use the webcam speaker
Is it necessary to use skype for the sound combinate with gnomemeeting for the video or gnomemeeting manages both well ?
(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
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