[Sumover-dev] [Media Tools] #38: rat, usb and Logitech webcams

[Media Tools]

#38: rat, usb and Logitech webcams
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 Reporter:  socrates                 |       Owner:  socrates, piers   
     Type:  enhancement              |      Status:  new               
 Priority:  minor                    |   Milestone:  sumover-2Q-release
Component:  rat                      |     Version:  4.3               
 Keywords:  usb webcam, full-duplex  |  
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 (Markus Buchhorn <Markus.Buchhorn at anu.edu.au> wrote the following to
 sumover-tech and ag-tech lists, see threads archived
 [http://oakham.cs.ucl.ac.uk/pipermail/sumover-tech/2006-May/000014.html
 here] and [http://www-unix.mcs.anl.gov/web-mail-archive/lists/ag-
 tech/2006/05/msg00008.html here])

 Hi all

 On returning from a greatly needed break  :-)  I found myself in posession
 of a "Logitech Quickcam for Notebooks Pro II" <takes breath>. A very
 nice USB camera, it also includes a microphone and a simple echo
 canceller (and a cute face tracker and video effects package  :-)  ).

 No problem with the video side under any apps, no problem with the audio
 side under any apps, except under rat. Rat refuses to see it, even when
 it's the default microphone device. I've seen this problem mentioned a
 few times before, dating back to at least 2002, with no resolution. The
 USB Logitech headset (mike plus earphones) I normally use works fine
 with rat.

 My guess is that rat is looking for a full duplex audio device. The
 camera is audio input only by definition. If this is the likely cause,
 is there a hack around it (can I run an instance of rat with "input
 only", independently of an "output" rat?), or a feature request looming
 to have rat cope with devices like these? i.e. independent audio input
 and output devices. Or an earlier version of rat that doesn't check for
 full-duplex? Currently this is on Windows, but I'd imagine the same
 thing will bite me on Linuxen.

 Thanks!

 Cheers,
 Markus

 [[BR]]Markus Buchhorn, ANU Internet Futures             |Ph: +61 2
 61258810
 [[BR]]Markus.Buchhorn at anu.edu.au                        |Fx: +61 2
 61259805
 [[BR]]The Australian National University, Canberra 0200 |Mob: 0417 281429

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