Jerky video capture

[John Russell]

I have just upgraded to an Asus 9600XT vivo card to replace my Leadtek
Nvidia VIVO card. Using the same settings in powerdirector I get jerky video
capture. Between jerks the recording are smooth and the jerks happen about 1
a second. This appears to be the rate at which the capture is sent to disk
implying that the disk activity halts the capture. This was not apparent
with the Nviida vivo card.

Anyone else seen this?

I'm beginning to think I should ahve bought a cheaper 9600xt card and a real
digitiser!

 

[Bilar Crais]

I have just upgraded to an Asus 9600XT vivo card to replace my Leadtek
Nvidia VIVO card. Using the same settings in powerdirector I get jerky video
capture. Between jerks the recording are smooth and the jerks happen about 1
a second. This appears to be the rate at which the capture is sent to disk
implying that the disk activity halts the capture. This was not apparent
with the Nviida vivo card.

Anyone else seen this?

I'm beginning to think I should ahve bought a cheaper 9600xt card and a real
digitiser!

Does that use MMC? If so, use "encode interlaced". ATI de-interlace
causes jerly motion in captures.

 

[John Russell]

Does that use MMC? If so, use "encode interlaced". ATI de-interlace
causes jerly motion in captures.

But the asus card dosn't come with that and I havn't downloaded it.
Powerdirector works directly through the WDM media driver.

I'm thinking the theater chip isn't as efficicient as the Nvidia when doing
the full "I" frames, and isn't fast enough to complete that frame before
then next incremental frame is required, this producing a jerk.