24fps to 23.976fps

[bazz]

Ive got a 24fps 720p mkv which i want to resample to 23.976 fps.
Im gonna use avisynth assumefps and MeGUi to encode the video
i want the audio from the 24fps mkv to match, hopefully to sync straight to the new xvid video at 23.976 fps

ive searched on this forum and google and i can not find an app that installs on Windows 7 x64 that will do this.

I have not used Behappy or EAC3To before, ive installed but havent got a scooby doo what to do:confused:

is theyre an easy app that can change the framerate 24 - 23.976 successfully to maybe match the video

thanks

[Blue_MiSfit]

Asuming there are two tracks in your MKV, one video and one audio, and that you want 640 kbps AC3 output (assuming a lot I know):


eac3to input.mkv 2:audio.ac3 -640 -changeto23.976



Derek

[leeperry]

use Reclock in realtime? encoding lossy audio twice is a terrible idea.

[Blue_MiSfit]

It's not ideal, but I'd bet almost anyone wouldn't be able to tell any difference...

[hello_hello]

If the output is to remain MKV and all else is equal (the two videos have the same number of frames etc) then you could use MKVToolnix to remux the desired video and audio streams into a new MKV while using the "stretch by" function under the "format specific options" tab. If you stretch the audio track it sometimes causes audible problems, sometimes not. I think it depends on the codec and how much you try to stretch. However you can also stretch the video track (either by a positive or negative amount).

Come to think of it, wouldn't it be easier to change the frame rate of the video rather than re-encode the audio, or do you specifically want 23.976?

[bazz]

its been a while coz i gave up but im back trying to do this audio again, Converting video with Assumefps with MegUI works great
but the same audio when muxed to the video is a mile out , i need to learn how to match them up

i cant get my head around Eac3to and More GUI

im trying to feed the DTS file from the MKV to convert it to 23.976fps but could it be anymore bafferling?
first tab is Convert Movie? - i loaded the DTS file
second tab Eac3to Audio - Change To - i moved to 23.976fps, Audio Track Choices ive set to ac3
Must it be set into batch processing? its asking me to give the movie a name if i try that, where do i simply run the program?
Is there another program freeware or paid that will convert 24fps to 23.796 fps audio.

any help would be greatly appreciated and Im Wishing a Happy New Year to Everyone!!

[hello_hello]

I've got to ask.... why do you actually want to change the frame rate?
I assume you're re-encoding the original MKV to AVI or something similar and want to change the frame rate along the way, but I've encoded lots of 24fps video as Xvid/AVI and not had any trouble playing them in a standalone player so I'm just wondering why the need to change?

Do you actually need to re-encode the video? It's possible simply to change the frame rate of the original without re-encoding if that's all you need to do.

Anyway, for re-encoding the audio (and as you mentioned MeGUI) try this. Run the HD Streams Extractor from MeGUI's Tools menu (it's a GUI for eac3to) and open the original MKV. Select the audio stream to extract (deselect the video) and the desired audio output format. In the +Options column, select the box next to the audio stream and enter "-changeto23.976" (without the quotes), then extract the audio from the MKV. That should do it.