Hi,
It's not perfect, but there's an example in 56.delay.pitchshift.pd in the audio examples of the Pd distribution.
cheers Miller
On Tue, Oct 30, 2001 at 10:11:05PM -0000, nullpointer wrote:
Hi all,
THis is slightly off topic but the algo should hold the same for both a pd patch and a stand alone implementation.. I asked on music-dsp but no-one knew (or could be bothered to answer).
What is your reccomendation for the best method of implementing a non fft style delayline based pitchshifter/harmoniser in dsp. I have set up two readpoints 50% offset from each other and crossfading at the end and beginning of the line as an attempt to eliminate discontinuities and transients but i still get cips and flicker at the frequency of the delay buffer size...I understand that it is impossible to get a perfect shifter using this method but i am sure there must be methods to improve it?
Tom http://www.nullpointer.co.uk http://www.dividebyzero.org http://www.orphanrecords.co.uk ________________________________________________________