Wing Wong wrote:
| 
| This has more to do with latency between the sound device and that of the
| video device. It may appear synced in one format on playback, but during
| translation, the syncing goes slightly out due to different time
| blockings. I could be wrong though.

I was talking about the sync problems when I do software mpeg encoding.
The original AVI are correctly synced.  Of course all the AVIs taken
by the Toshiba camera/software have non-standard frames/second.
Maybe this is messing up the software encoders..

| > doi> That box only does video.
| > doi> The one I used is
| > doi> http://www.iodata.co.jp/products/video/mpgboxp.htm
| 
| Doi, that's the reason for your sound/video syncing problems. Any system
| where the sound and video aren't synced in hardware like the video-sound
| capture systems will encounter a certain amount of latency from either the
| video capture device or the sound capture device. This can be in

I think this MPEG box has the video/sound synced in hardware.
This box has video and audio inputs, and it spits out a MPEG-1 file
(with video and audio mixed).
You can create video only or audio only too.

| Prolly doesn't apply to a windows machine, but with the buzz and a SB pci
| sound card(generic), I've been able to tune it so I can record about 2
| hours without going out of time sync between video and sound. But then
| again, whether it will convert to mpeg without losing that sync is
| entirely another matter. ^_^;;

That's the problem..  I have a 1 GB AVI that I want to convert to mpeg,
but when I try with the various software that I found, the sound
doesn't sync..  I will try some of the other software later.

I wish there was a AVI to MPEG-1 command line converter that runs
on unix..

| But if you want it to go to mpeg directly without sound and video going
| out of sync, I think one would be stuck with either a digital camcorder +
| firewire -> pro capture card/mpeg compression card or a capture card that
| uses mpeg compression as default internally with both video and sound
| input on the same card.

The I/O Data MPEG box does this, that's why I am interested in it.
But maybe the "low quality" might be an issue.

--
Hitoshi Doi                                               Toshi Nibunnoichi
half a UFO catcher doll, half a cel          801 tactical training squadron
http://www.win.ne.jp/~doi/                                    doi@win.ne.jp