Hi,
Just a quick FYI:
Trying to combine two AVI videos with different audio sampling rates. One is 32K the other 48K. I've tried AVISynth using the following script.
AviSource("Tape2.06-02-17_13-24.00.avi")
Resampleaudio(32000)
Results:
This does resample but the sound is choppy and video is worse than the original. Also, original the video decompressor is Panasonic DV Codec and the new one is uncompressed RGB24.
I don't know much about this stuff at all, so any help is much appreciated.
Thanks.
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I haven't done this with AVIsynth, though it's probably the best way. I use VirtualDub Mod and change the sample rate to 48K and save it. With VDM, you would just convert the audio with full processing in the 'Streams' menu to 48K and run the video through as a 'Direct stream copy' with no change. Then you can combine it with the other AVI with the 'Append' command.
But our AVIsynth experts can probably give you better advice. I know that you shouldn't be doing anything to the video, though.
The next question that will come up is 'Why are you joining the videos?' If your end product is a AVI file, no problem. But if you are converting to a MPEG format, you may have sync problems with joining at this point. I use the authoring program to 'join' instead. -
Hi redwudz,
VirtualDub Mod seems to have done the trick. Thanks for the reply and suggestion. The sync problems seem to be nonexistant, but I'll know for sure after burning to DVD.
Thanks again. -
Hi all...I have similar situation, two AVI files with VBR audio and would like to combine both to create MPEG-2 or dvd compliant file to author and burn to DVD. What is a good way to do this to achieve a good quality file? I have de-multiplexed both AVI's to two AVI's with no audio and two WAV's using VirtualDub (direct stream copy enabled for video only avi). Would the next step be to use TMPGenc to create a MPEG-2 DVD file with the 1st AVI and 1st extracted WAV and do same with 2nd AVI and then just combine the two MPEG-2 movies in authoring app like DVDlab?
Any help would be greatly appreciated. -
That's generally the best way to do it. I use ffmpeggui and convert the WAVs to AC3, then just encode the video with TMPGEnc encoder. Allow for the size of the the two AC3 audio files and a little authoring overhead, maybe 100MB, depending on your authoring program and how extensive your menus are when you set your bitrate to encode to MPEG-2. Then, if DVD lab can accept elemental streams of separate video and audio, add them in, then add the second part and audio and author and burn.
If elemental streams aren't allowed, you may have to mux the audio back in with the video before authoring. The two separate Video/audio sections should play transparently together as a single DVD file when you are done. I generally use TDA for authoring and it works fine with that method.
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