1. When I had my canopus DVraptor card installed, my speakers would generate
some feedback -like sounds (the tempo and rythm of the sound was more like
galloping, (or the way a heart monitor sounds) ... it was syncopated and was
not a constant beep, but one that panned around the speakers .
Anyway I replaced my canopus card with a fiere wire card (not enough space
pci slots for both..., and that took care of the sound .

dh: We haven't heard any complaints about Raptor and VV3. Maybe an IRQ thing? I know of at least three people using VV3 with installed raptor cards and they have not reported this issue.

2. In Adobe after effects, I do not see the vegas codec when I go to make
movie.
what I was hoping to do was take some vegas-captured clips into After
Effects and add some effects. I wanted to export the clip as uncompressed
.avi or .mov and use it in After effects, then render it in AE with the
sonic foundry codec , is that possible?

dh: Uncompressed .avi (or QT) export from Vegas, no problem. Uncompressed import from AE, again, can do. Our codec is proprietary to Vegas 3, so AE will not be able to render to it (read .avi files created with it, yes). The codec is a big part of the upgrade and we can't just give it away- hope you can understand why.

3. Question: Does the chromakeying in Vegas video occur in the YUV color
space, or in RGB color space. (the canopus chromakeying and other plugins
work in YUV space for the DVStorm and Rex ... and apparently gives excellent
keying. I havent figure out how to properly tweak the vegas chromakeyer
yet.---
Further to this, I would like to take clips into Puffin designs commotion so
I can use the primatte keyer , which until now has not worked too well on DV
footage. Is there anything I can do to the footage in vegas to yield footage
upsampled for this use? ie can I take a clip into vegas 3 upsample it with
the dv codec (maybe to YUV 4:2:2) , render it uncompressed, and key it in
Primatte , render it in Commotion with the vegas codec, or uncopmressed and
return it to vegas for use with other clips.
This may be faulty reasonoing on my part, but if there is a better work flow
, I would be happy to find out.

DH: Our chromakeyer is RGB as is the rest of Vegas. For export and re-import to AE or Puffin or whatever, use D1 uncompressed out and bring the same back in. No compression is the best compression for critical operations. Not sure what the original source is- if DV, chromakeying can be tough, but it can be done with some clever matte treatment. Vegas chromakeyer is pretty good, especially in conjunction with the Vegas compositing features, so you might be able to get a satisfactory key in Vegas, with no exporting. Worth a try-