Sliding DFT for fun and musical profit

Reference:

ffitch, J., Dobson, R. and Bradford, R., 2008. Sliding DFT for fun and musical profit. In: Barknecht, F. and Rumori, M., eds. Proceedings: Linux Audio Conference 2008. Brno, CZ: Tribun EU, pp. 118-124.

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Official URL:

http://lac.linuxaudio.org/2008

Abstract

Many Csound users may have seen reference to the SDFT or Sliding Discrete Fourier Transform in recent months. Here we review the basic ideas, and describe the Csound implementation. The main musical message is that it is integrated with the f-signals for the streaming phase vocoder written by one of us earlier, and so is easy to use. The down side is that it is slow, and definitely not yet for real-time performance. We briefly discuss approaches to improved performance.

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