Matrox G400 and Huffy

[mickle]

I'm trying to capture using YUY2 and huffy on my G400TV.
When I do this the audio track, after capturing, is choppy, with digital noise (many many clicks).

Driving me nuts....

Anyone with a G400 sussed this out?

Mickle

[sherman]

I have a Matrox Marvel G400 TV. If it is the same as yours, mine has hardware MJPEG compression, so why would you want to capture with YUY2 or huffy. I use Vurtual Dubb to caputre using Matrox's Vidcap driver you would need no other comporession to caputue. One hour of AVI takes up about 6.5 gigs of HD space. I have no trouble at all capturing thias way. If you want to Privite message me I can give you some more info.

Sherman
s_balsom@hotmail.com

[mickle]

I want to capture with huffy because it is not as "lossy" as mjpeg

Mickle

[iant]

Mickle,
The main reason is likely to simply be that your machine hasn't got enough guts. The MJPEG capture is hardware assisted but Huffy is all CPU. You could try adding audio buffers to VirtualDubs capturing but you're still likely to find that it's still mediocre.

First off, why do you want to use a losssless codec? If you record a test piece using MJPEG and Huffy and compare the two, can you see a visible difference? If not, why bother? It will purely be doing so for technical reasons, not practical.

I've been using the Matrox on Full Screen with Medium Quality to convert my VHS tapes. When converted to SVCD I can hardly see a difference between the two. Maybe 1 or 2 percent loss from tape to disk. Which, I might add, is far less than the degradation you'd suffer dubbing to another tape which would cost you between 5 and 10 percent.

The sheer convenience of the hardware assist has got to make up for the couple of percentage points dropped in quality.

As said earlier, if you want to continue with the Huffy, try fiddling with capture buffer settings and if you can make 'em work well, let us know. With support for the Marvel hardware compression not functionally available under Windows XP, it would probably be handy to have an alternative route to staying on 98.

Good luck,
Ian