Article View: comp.dsp
Article #1353Integer FFT
From: vdongen
Date: Thu, 06 Dec 1990 15:52
Date: Thu, 06 Dec 1990 15:52
18 lines
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1225 bytes
******** LOOKING FOR INTEGER FFT ******************* I'm looking for extra fast implementations of FFT. We have a 256 point FFT for which we need a "dedicated routine". So cosines and sines are computed first and now we think that doing everything in integer might speed up even more (it's for real-time speech recognition and image processing). Are there any routines around that do that. We would prefer code in C if possible. We are also looking at radix 4 FFT, which we think will improve things. Any pointers would help (PS we have NAG and the IEEE DSP package) Best regards, Paul Van Dooren e-mail: pvandooren@prlb.philips.be Philips Research Laboratory Avenue Einstein 4 B-1348 Louvain-la-Neuve, Belgium Tel:+32 10 470658 Fax:+32 10 470699
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Path: arc1-ca.pugleaf.net!utzoo!censor!geac!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!wuarchive!emory!gatech!bloom-beacon!eru!hagbard!sunic!mcsun!ub4b!prlbcom!prlb24!vdongen From: vdongen@prlb24.prlb.philips.be (vdongen) Newsgroups: comp.dsp Subject: Integer FFT Keywords: FFT routine, real-time speech and image processing Message-ID: <58@prlb24.prlb.philips.be> Date: 6 Dec 90 15:52:24 GMT Organization: Philips Research Laboratory Belgium Lines: 18