The best way to change fps for SVCD

[MrZoltan]

I got this movie in AVI-file format with a framerate of 23,976 fps.

I want to convert this to SVCD. Now I read on this site that that for PAL the fps must be 25 and for NTSC 29,97 or 23,976 with 3:2 pulldown.

My dvd player can play both PAL and NTSC I wonder what's the best thing to do.

I tried to encode at 25fps PAL with TMPGEnc, but the video was sloppy sometimes. Then i tried 23,976fps with 3:2 pulldown NTSC. The result was a little better, but still no smooth video.

Any of you know what the best way is to convert the fps ??

Thanks

[GodOfKnowledge]

In TMPGEnc, the setting "23.976 (internally 29.97 fps)" should work. I use it, video use to get smooth. But it depends on the source too...

[Totta]

You can also do it this way. It's a little more work but it's worth it:

* Open the AVI in VirtualDub.
* Export the audio to a wav (Ex "original.wav")
* Choose Video/Frame rate and set this to 25 (25 is almost 23.976 so you can't see the difference)
* Choose File/Start frame server
* Click START and then choose a filename (Ex "Frameserv.avi")
* Open "Frameserv.avi" in your favourite MPG-encoder and encode it as usual.

This will create a 25 fps MPEG-movie with the sound out of sync so let's fix the sound too.

* Export the new MPEG sound to a wav (Ex "newmovie.wav")
* Open both "original.wav" and "newmovie.wav" in CoolEdit
* Notice the EXACT length of "newmovie.wav", down to milliseconds.
* Switch to "original.wav" and choose Effects/TimePitch/Stretch
* Click in "Time Stretch" and type in the new length from "newmovie.wav"
* Save the Wav and import it into the MPEG.

There you have it. A 25fps movie

[GodOfKnowledge]

Hey Totta, your way of speeding up the audio is not the best. Instead use VirtualDub and press "Save WAV". Then use BeSweet GUI and check "Change framerate from xx.xxx to xx.xxx". You get an exacter result than with stretching with timecodes.

[zilog_jones]

You could also just use VirtualDubMod alltogether, which also has an audio stretch filter on "advanced filters" in the stream menu.

23.976/25 = 0.95904, which is what you put in for the number on it.

You can just save that stream as a WAV file, and you won't even need to re-encode the video at all in VirtualDubMod. You can just set TMPGEnc to encode the video at 25fps (put "don't frame rate conversion" on, or whatever bad English they use), load the wav file you made for the audio, and encode! That's slightly easier - no need to take down exact lengths of video or do anything to your AVI file, though you may find that some of VirtualDub's many resizing filters look better (the video's gonna have to be resized to 480x576 for PAL SVCD; 352x576 usually works too, but is handy because it's forwards compatible with DVD video).

I've tried this routine with bbMPEG before with pretty much perfect audio sync, but have yet to test it with TMPGEnc.