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- Newsgroups: comp.speech
- Path: sparky!uunet!convex!darwin.sura.net!sgiblab!swrinde!elroy.jpl.nasa.gov!ames!riacs!danforth
- From: danforth@riacs.edu (Douglas G. Danforth)
- Subject: Re: Very simple speech recognition Alg. wanted.
- Message-ID: <1992Nov12.232526.17013@riacs.edu>
- Sender: news@riacs.edu
- Organization: RIACS, NASA Ames Research Center
- References: <MHALL.92Nov9152432@occs.cs.oberlin.edu> <1992Nov12.180625.13886@riacs.edu>
- Distribution: comp.speech
- Date: Thu, 12 Nov 92 23:25:26 GMT
- Lines: 15
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-
- Addendum to QUICKY:
-
- Amplitude normalization:
- Forgot to mention that the amplitude in each segment should be normalized
- otherwise loud sounds will look different from soft sounds even though
- the same word is spoken. The Interstate Algorithm actually just
- uses the amplitude difference (1 bit) from one lowpass filter to the
- next higher frequency within a segment. For 16 filters there are
- 15 differences. An increase gets a 1 bit. No change or decrease gets
- a 0 bit. The result is a 256 bit (pad low frequency with zeros) pattern.
- You can try other schemes as well.
-
- Doug Danforth
-
-