Tivo File Edits Are Slow

[genedahl]

Using EMC10 Deluxe, selected primarily for TiVo file support. Editing TiVo files in VideoWave is exasperatingly S-L-O-W when trying to space through the video clip, or (especially) using the "thumbwheel" or frame-forward/back controls.

Same operations against MPEG files operate OK.

Raise ticket with Roxio, got the usual first response about updating DirectX and my video drivers; no improvement. Got a second response describing start-up with additional programs disabled via MSConfig; likewise, no improvement. Have not heard from Roxio since this (a full week ago now).

PC platform is HP a730n, 3 GHz CPU, 2.5GB RAM, 200 GB & 300 GB SATA disks.

Anyone having similar issues?

 

[gi7omy]

Your culprit is here (from the quoted specs for your computer)

 

 

Video graphics

 

*

Integrated in Intel 915G chipset

*

Intel Graphics Media Accelerator (GMA) 900

 

 

Rendering makes use of the graphics system and that is a very low-end one. You'd be far better installing a dedicated graphics card

[genedahl]

Thanks for the suggestion. Suspecting something like that, I'd installed an ATI Radeon graphics board. No difference. On reflection, since the MPEG file edits were OK, it seemed like rendering was not likely to be the culprit, but something in the TiVo file format decode logic.

Any other thoughts?

 

[gi7omy]

Check for the latest ATI drivers (from the AMD-ATI site) and also the latest DirectX from MS.

 

Also, try using software render instead of hardware and see if that speeds things up a bit and also make sure that there are no background running apps that could be eating into the CPU processing

[genedahl]

Drivers and DirectX were updated (again) on Saturday. Have also tried software rendering. Likewise, I've adopted a regimen of running nothing but EMC when I'm editing. Still far too slow on TiVo files to be workable.

 

[gi7omy]

If it's just the Tivo files that are slow and other files are OK, I'd suspect something in the file format is the culprit. I do know that Tivo has encryption (CSS) on some of their movie files and it's possible they've done something to the non-encrypted ones (not using Tivo I can't be 100% certain but it would appear that they have done something)