how to change frame rate videos (25.000 to 23.976)

[fps]

hi friends
how can i change/convert video frame rate (fps)
for example i want to change 25.000 to 23.976
is there any softwar for this ?
please help me
thanks

[sanlyn]

Why? Is the video interlaced? Pulldown applied? Film source or video source? Or was it originally 24FPS PAL film and speeded up to play at 25FPS? Or was it originally NTSC film and modified to play at 25FPS?

And welcome.

[fps]

what do u mean ???

[fps]

i want software that slow down video's frame rate
do u know ??

[jagabo]

Your question is much more complex than you realize. The answer depends on what container and codecs are used, the properties of the video (interlaced, telecined or progressive), whether you need to keep the audio in sync, and what you plan to play the video with.

[pandy]

There is many software solutions, form very simple to very sophisticated but none of them provide perfect frame rate conversion - imperfections are highly related to the video itself.

For example http://compression.ru/video/frame_rate_conversion/index_en_frcn.html something like this can be interesting for you - as a free software i can recommend Avisynth + MVTools but this combination (free) have some limitations...

http://avisynth.org.ru/mvtools/mvtools.html#examples

http://avisynth.org.ru/mvtools/mvtools2.html#examples

Generally frame rate conversion is most expensive (time and money) part for the typical video flow...

[fps]

what is best software for converting 25.000 to 23.976 video's frame rate ?

[jagabo]

what is best software for converting 25.000 to 23.976 video's frame rate ?

What part of

The answer depends on what container and codecs are used, the properties of the video (interlaced, telecined or progressive), whether you need to keep the audio in sync, and what you plan to play the video with.

did you not understand?

[fps]

my video is mpeg

[sanlyn]

That's a beginning, but it's only a small part of the story. Is it MPEG from a retail DVD? Is it a DVD that you or someone made at home or recorded off cable TV? Do yourself and us a favor: download the free MediaInfo utility and open the MPEG file with it. It will give lots of info about the nature and structure of the MPEG. You can post that information here as text. Please do not take a huge screen capture of the report and post. You can use MediaInfo's "Text" view under the "View" menu option, and select/copy/and paste that report into a text file. You can either post the text file here or copy/paste the text itself into a post.

[manono]

Please provide a sample, since you seem incapable of telling us exactly what you have. 'MPEG' is a step in the right direction, but not the complete answer.

And are you planning on and/or willing to reencode it, or must this be done without reencoding.

[fps]

clear : i want software that convert dvd and vcd's fps from 25.000 to 23.976
or software that can supports most of video formats for converting frame rate

mkv too ...

[smrpix]

What do you want to do this for, sending home movies to friends overseas, additional editing...? In many cases a framerate conversion is damaging and unnecessary.

[fps]

i want it and it's very necessary for me please help me to find software that converts frame rate movies please

[manono]

i want it and it's very necessary for me please help me to find software that converts frame rate movies please

Again, you're not supplying nearly enough information and you have no idea what you're asking. For example, there are no DVDs that output 23.976fps; not PAL, not NTSC. However, if you're interested in converting from PAL to NTSC, try Avs2DVD.

Just guessing here, but if you're from India or thereabouts your DVDs (and some VCDs) are often so messed up that a straight PAL->NTSC conversion sometimes isn't enough to give even acceptable quality.

This should be handled on a case-by-case basis and, again, a sample of one you're interested in converting would be helpful. 10 seconds or so is enough.

[wulf109]

TFM Audio Tool can convert audio from 25 to 23.96. TSmuxer can change the video frame rate to 23.96(24000/1001) Add your audio from TFM to TSmuxer.

[fps]

TFM Audio Tool can convert audio from 25 to 23.96. TSmuxer can change the video frame rate to 23.96(24000/1001) Add your audio from TFM to TSmuxer.

thank u but i have a problem with this
after changing audio from 25 to 23.976 my duration is 1:12:09
and after changing video from 25 to 23.976 my duration is 1:12:14

and my video is not sync with my audio
how can i solve this problem ??? help me please

[sanlyn]

Without a sample of your video, there's no effective way to answer your question in detail. You need to know how your video is structured (telecine, interlaced, blended frames, plain interlace, etc.). We still don't know why 23.976 is required. There are ways to solve the problem, but you have to know what you're doing and I doubt there's a simple one-button answer. Video restoral from its encoded playback rates are restored to their original film rates all the time; it's not an unusual request. But more needs to be known about the nature of the original video. To add to the problem, 23.976 is not a standard playback rate for MPEG/BD/AVCHD video disc. Without more info from you, there's not much anyone can do with any certainty.

[fps]

is there a software that mux mpeg with mp2/mp3???

[jagabo]

how can i solve this problem ??? help me please

You're not providing the information every asked for. Nobody is going write up the dozens of different ways frame rate conversions can be done.

[pandy]

thank u but i have a problem with this
after changing audio from 25 to 23.976 my duration is 1:12:09
and after changing video from 25 to 23.976 my duration is 1:12:14

and my video is not sync with my audio
how can i solve this problem ??? help me please

As you constantly refusing to provide all data required to solve your problem i will limit myself to general recommendation:

http://sox.sourceforge.net/sox.html#EFFECTS

tempo [−q] [−m|−s|−l] factor [segment [search [overlap]]]
Change the audio playback speed but not its pitch. This effect uses the WSOLA algorithm. The audio is chopped up into segments which are then shifted in the time domain and overlapped (cross-faded) at points where their waveforms are most similar as determined by measurement of ‘least squares’.
By default, linear searches are used to find the best overlapping points. If the optional −q parameter is given, tree searches are used instead. This makes the effect work more quickly, but the result may not sound as good. However, if you must improve the processing speed, this generally reduces the sound quality less than reducing the search or overlap values.
The −m option is used to optimize default values of segment, search and overlap for music processing.
The −s option is used to optimize default values of segment, search and overlap for speech processing.
The −l option is used to optimize default values of segment, search and overlap for ‘linear’ processing that tends to cause more noticeable distortion but may be useful when factor is close to 1.
If −m, −s, or −l is specified, the default value of segment will be calculated based on factor, while default search and overlap values are based on segment. Any values you provide still override these default values.
factor gives the ratio of new tempo to the old tempo, so e.g. 1.1 speeds up the tempo by 10%, and 0.9 slows it down by 10%.
The optional segment parameter selects the algorithm’s segment size in milliseconds. If no other flags are specified, the default value is 82 and is typically suited to making small changes to the tempo of music. For larger changes (e.g. a factor of 2), 41 ms may give a better result. The −m, −s, and −l flags will cause the segment default to be automatically adjusted based on factor. For example using −s (for speech) with a tempo of 1.25 will calculate a default segment value of 32.
The optional search parameter gives the audio length in milliseconds over which the algorithm will search for overlapping points. If no other flags are specified, the default value is 14.68. Larger values use more processing time and may or may not produce better results. A practical maximum is half the value of segment. Search can be reduced to cut processing time at the risk of degrading output quality. The −m, −s, and −l flags will cause the search default to be automatically adjusted based on segment.
The optional overlap parameter gives the segment overlap length in milliseconds. Default value is 12, but −m, −s, or −l flags automatically adjust overlap based on segment size. Increasing overlap increases processing time and may increase quality. A practical maximum for overlap is the value of search, with overlap typically being (at least) a little smaller then search.
See also speed for an effect that changes tempo and pitch together, pitch and bend for effects that change pitch only, and stretch for an effect that changes tempo using a different algorithm.

alternatively audio can be resampled and new sample rate can be set to arbitrary value to extend or shorten audio length (it will change pitch).

[fps]

can u help me to find software that mux mpeg with mp3/mp2 ??

[pandy]

can u help me to find software that mux mpeg with mp3/mp2 ??

at first shot ffmpeg , tsmuxer etc

ffmpeg -i inputvideo.m2v -i inputaudio.mp3 -c copy -map 0 -map 1 -f mpeg out.mpg

[jagabo]

ffmpeg, TMPGEnc, MMG, Mp4Box, TsMuxer...

[smrpix]

gamemaniaco, is that you?

[filmboss80]

gamemaniaco, is that you?

I was thinking the exact same thing. New name, same OCD?

[manono]

can u help me to find software that mux mpeg with mp3/mp2 ??

ImagoMPEG-Muxer