audio spectrum/waveform
by Mats Andersen
on
May 13, 2008 at 7:46:25 pm
Hodwy Cow!
Im using the audio spectrum and waveform filters to generate graphics from an audio file.
Then I move this composition into a new comp to zoom into the waveform. I want to zoom close to waveform to generate an abstract form that pulses with the music - but the quality gets distortet, and when I press the continously rasterize the size jumps back to 100%
Re: audio spectrum/waveform by Simon Bonner on May 13, 2008 at 10:10:42 pm
The coninuously rasterize switch is also known as the collapse transformation switch. It sounds like you are collapsing transformations here - try zooming in the precomp rather than the main comp, then you would not need to scale up inside the main comp at all.
Re: audio spectrum/waveform by Simon Bonner on May 14, 2008 at 9:17:00 am
Scaling up an adjustment layer will not scale up the effects it produces, it will just scale up its area of influence.
I've had a quick go at replicating your problem, and I think the only solution might be to add the audio track to a new comp with large dimensions, add a solid layer above it, precompose both layers, add the effect to the precomp, then nest this precomp into your main comp. That way it will be large to begin with and you won't need to scale it up.
So, to clarify, you will have:
1) a main comp (normal dimensions) with precomp 1 in it.
2) precomp 1 (large) with precomp 2 in it: the effect is added to precomp 2.
3) precomp 2 (large) with a solid layer and the audio file in it.
Finally, it's worth mentioning that you should only use uncompressed audio in AE as the programme doesn't always work well with compressed formats like MP3.
