Has any sense to use 23-24 frames instead 25 for 1CD rips???

[serbersan]

Has any sense to use 23-24 frames instead 25 for 1CD rips???

One or two frames less per second could help????

...and, How do I do it?

Thanks.

[cofferscuffs]

How would 1 or 2 less frames help in terms of file size?? You would need to reduce a lot more to have a file-size reducing effect. Besides even if you reduce it by a few frames audio sync can be lost. If you really want to do it in VirtualDub Video--->Frame Rate.

[DJ Bobo]

It has no sense, since reducing the framerate will result in a longer movie and you will land with the same video quality. So keep it @25fps.

[xzquala]

the only sense ful thing you can do with framerates is retun them to what they were originally. for most movies this is 24 fps. how does one achieve this framerate? use ForceFilm.

so why is it so silly to lower the framerate using another way?

if you just lower the framerate, then you are not actually getting rid of frames. you are just making the movie longer. not a good idea.

if you use another capability like framerate decimation, then you have the capability to lower the size, but at a cost in quality.
lest think about what divx does for a second. it takes one frame of video, calls it a keyframe, and captures the whole frame, for the next frame, it only encodes the change from the previous frame.

so if you were to say, cut the framerate in half, the you will have twice as much change from one frame to the next, and each frame will have to have twice as much data in it maintain decent quality.

not sure you believe these concepts, please feel free to try it. explore all of the options v dub has. I did, and I was disappointed.

[DJ Bobo]

@xzquala

You're talking about NTSC videos. In such a case you need only IVTC or ForceFilm.

But Serbersan ist talking about PAL videos, that have 25fps. In that case, the only advantage of reducing the framerate will be to get better quality with VCDs and S-VCDs. For DivX, it has the negative effect to lower the video quality a little bit, since the audio track gets longer.
DivX -> don't reduce framerate!
VCD or S-VCD:
One may reduce the framerate in VirtualDub to 23,976fps (the video MUST be progressive!), make the audio as long as the video using an audio editor like WaveLab or CoolEdit, and then encode to NTSC VCD or S-VCD. You get better visual quality (less block noise), but a little lost in sharpness (not that bad!).

[serbersan]

Thanks to all.

[xzquala]

Originally posted by bobotns
@xzquala

You're talking about NTSC videos. In such a case you need only IVTC or ForceFilm.


good point, I keep forgetting not everyone lives in the us