I'll take a look at anything you might be able to find! So far, I've only been able to find the new audio plugin "ratty pitch shift" in the newest VirtualDub. I tried it with some video with audio and it sounded reasonable (at least for a first pass). But VirtualDub doesn't like audio only, so I can't use it on an extracted WAV file. When I tried to load in an AVISynth script with the audio (plus video), VirtualDub crashed. I've download the newest VirtualDub source with an eye toward porting the code to an AVISynth filter, but I'm sure it will be at least two weeks or so before I'll have that much time at one sitting. Xesdeeni
Hello Xesdeeni... and download "Wave lenght adjust" :) It even has the source included! And check the attachment for the very old Wave convert by Extreme. And here you can find some tools (like Audacity...), also: Hopefully this will help you. Thanks for your work. Cheers, Mijo.
The "Wave Length Adjust" link appears to be broken. But the description just looks like it is a resampler (and if this is the same one as linked by the other page, it's a BAD resampler at that). That can be accomplished with most applications (on my Standards Conversion page, I use AVISynth for simplicity). But this changes the length as well as the pitch. Instead, we need an application that will change just the pitch, without changing the length. Audacity doesn't appear to have a pitch shift either, nor do any other audio application on the above page. That's the problem I've been having. Free applications don't seem to have this feature, most probably because they require some serious math (FFT/IFFT, etc.). Many commercial products will do this, but most of us will be converting only a few movies, so we don't want to have to pay the premiums. Xesdeeni
How would you change the length without the pitch, or vice-versa? If you have a certain wave of a given length, then changing the length would change the pitch, correct?
> The "Wave Length Adjust" link appears to be broken No it isn't, I've downloaded it today. As for the other things, hopefully you'll find the program you need.
I am just a newbie and my simple question is: Is there no possibility whatever to do some kind of "telecining" from 23,976 to 25 and that way make the video length in the new "prolonged" PAL suit the original audiostream?? Can no suitable frame pattern be applied??
Certainly, but there is always a tradeoff. When you convert 23.976 to 25 fps, you have to fill in missing frames/fields. With a high cost motion compensated converter, the missing frames are created based on where objects would have been if the video were shot at the target frame rate. The quality will be quite good. But for what we can afford (and what will work on our current crop of PCs), the missing frames/fields have to either be duplicates or blends. I prefer duplicates to the blending, but with that you will get a "bump" on smooth panning shots. Depending on the content, this may not even be a problem. With blending, you get a "strobing" effect which I think is more objectionable. Anyway, take a look at this thread: (ignore the 16:9 references if your movie is not anamorphic). Xesdeeni
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RE: Pitch shift for PAL<->NTSC film conversion
