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Text File  |  1993-01-06  |  863 b   |  26 lines
  1. Newsgroups: comp.dsp
  2. Path: sparky!uunet!spool.mu.edu!agate!dog.ee.lbl.gov!news!manta!herman
  3. From: herman@nosc.mil (John W. Herman)
  4. Subject: Re: Pitch shifting
  5. Message-ID: <herman.726269308@phage>
  6. Sender: usenet@nosc.mil (Network News)
  7. Organization: Naval Ocean Systems Center, San Diego, CA
  8. References: <mikael.31ea@terapin.com> <1993Jan5.184530.4560@eng.cam.ac.uk>
  9. Date: Tue, 5 Jan 1993 21:28:28 GMT
  10. Lines: 14
  11.  
  12. cmh@eng.cam.ac.uk (C.M. Hicks) writes:
  13.  
  14. >mikael@terapin.com (Mikael Andersson) writes:
  15.  
  16. *** Stuff deleted ***
  17.  
  18. > - FFT, scale frequency, IFFT.
  19. >   Main problems: discontinuities at block boundaries, computational load.
  20.  
  21. Windowing the input function with a Hann window, shifting only half the
  22. FFT length, and adding the appropriate outputs of the IFFT will produce
  23. fairly smooth output time series.  But likely not in real time.
  24.  
  25. *** Stuff deleted ***
  26.