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Author Topic:   waveset transformation
flo
Member
posted 07 June 2005 06:59         Edit/Delete Message   Reply w/Quote
Hi,
I would like to apply Trevor Wishart's 'waveset reversal transformation' in kyma. I have a brief description and a sound example (attachment) but in the description it is not pointed out how to apply this technically and hearing the sound example I am also not completely sure what the algorithm behind this is.
It seems to me that only individual grains/fragments of the source signal are reversed, not all of them; but how to accomplish this with the wavesets is not clear to me.
Does anybody know/hear which algorithm is behind this and how I can apply this in kyma?
Thanks.
Best,

Florian

Short descripton: "Several years ago the British composer Trevor Wishart developed a family of eccentric sound transformations based on a sound particle that he called a waveset. He defined a waveset simply as the 'distance from one zero-crossing to a third zero-crossing'. For a pure sinusoidal signal, a waveset is equivalent to one ave period or wavecycle. For a more complicated signal with multiple zero-crossings, segmentation by wavesets breaks the signal into fragments, whose
size depends on the signal's partial structure. One can use the waveset as a unit of sound transformation, sometimes subdividing it into half-wavesets, which span the distance between two zerocrossings."


p.s. I'll post the corresponding sound file later on, right now the
format is not adequate, or is there a way to upload mp3`s?

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tuscland
Member
posted 07 June 2005 11:31         Edit/Delete Message   Reply w/Quote
Hi Flo,

The description looks a bit sparse, but is very interesting!
I think you can upload your MP3 as long it is not too big and you put it in a ZIP archive.


All the best,
Camille

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