How to use fractional audio resampling?

[ChiDragon]

Hz = audiorate
offset = -1
AssumeSampleRate(Hz+offset).ResampleAudio(Hz)

I would normally use this, but in my current case I need an offset between -1 and -2. How could I implement this using ResampleAudio's fractional resampling? I can't even figure out how to duplicate my current results using it. I tried ResampleAudio(Hz*Hz,Hz+offset), but that just freezes VDub.

[IanB]

Hz = audiorate()
offset = -1
ResampleAudio(Hz*Hz,Hz-offset).AssumeSampleRate(Hz)or with cunning misuse of AssumeFPS to turn a float into a rational pairHz = AudioRate()
offset = -1.625 # Fractions are okay
T=Blankclip().AssumeFPS(Hz-offset)
Num=T.FrameRateNumerator()
Den=T.FrameRateDenominator()
ResampleAudio(Num, Den).AssumeSampleRate(Hz)

[ChiDragon]

The former also hangs VDub, while the latter complains about invalid arguments to ResampleAudio. :confused:

[IanB]

What is the actual value of Hz? 48k^2 is just a bit more than 2^31 Oops! It chokes. I tried with 44100 and it works. 44k1^2 is just less than 2^31

What version of Avisynth are you running? You need 2.56 for the fractional resampling option. And you will need 2.57 to get good results from the AssumeFPS trick.

[ChiDragon]

Yeah, Hz is 48000, so I guess the first one can't be used, but the second should work? I'm using 2.57.

[IanB]

:script: complete!

[ChiDragon]

Ack, sorry. I was using this in a function and I forgot to give ResampleAudio the clip to work on. :o Could've sworn it did the same thing when I tried it outside of the function but I guess I messed something else up then... Got the second working perfectly now though, thanks!