24 to 25fps conversion sound difficulties

[hanfrunz]

Hello everyone,

i hope this is the right forum...

I want to make a speedup of a 24p source to PAL. I use VirtualDub and just change the framerate of the xvid-video (direct stream copy). Now i want to speedup the audio as well. I tried different methods:

1. export audio to wav with VDub -> besweet OTA NTSC->PAL -> mp3
2. virtualdub "advanced audio filter" -> stretch filter
3. avisynth directshowsource("filename.avi",video=false).TimeStretch(tempo = (100.0*25.0)/23.976)

1 is not giving me a exact result (file is a few sec. to long if i remember right)
2 is also not exact enough, because you can't enter precise values
3 works perfect!

now my problem. What is the easyiest way to get the audiodata to an mp3 file and then mux it with the 25fps-videofile? Is there a besweet input-plugin for avs files? Or is there a modded version of VDub which can handle AVS-audio only?

Thanks,
hanfrunz

[communist]

3. avisynth directshowsource("filename.avi",video=false).TimeStretch(tempo = (100.0*25.0)/23.976)

3 works perfect!
Or is there a modded version of VDub which can handle AVS-audio only?

Just select video=true, open it in VDub, select File -> Save WAV and reencode the resulting wav to mp3 which you can now remux to the video stream.

[hanfrunz]

Just select video=true, open it in VDub, select File -> Save WAV and reencode the resulting wav to mp3 which you can now remux to the video stream.

This is what i have done, but isn't there a faster way?

[foxyshadis]

TimeStretch is basically the best method avisynth has, it incorporates ResampleAudio with highest parameters, eaily as good as Soundforge. You should be able to audiodub that to the video stream with no problems.

[dimzon]

What is the easyiest way to get the audiodata to an mp3 file and then mux it with the 25fps-videofile? Is there a besweet input-plugin for avs files?
You can use BeHappy or MeGUI to encode your avs directly into mp3 (llok @ my signature)

[hanfrunz]

cool now i am a little bit happier :)

but a vdub-avs-audio-input-mod would make me more happy...

thanks,
hanfrunz