Re: [linux-audio-dev] formant analysis lib

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Subject: Re: [linux-audio-dev] formant analysis lib
From: Samuel S Chessman (chessman_AT_tux.org)
Date: Thu Nov 18 2004 - 00:28:16 EET

On Wed, 17 Nov 2004, Dave Griffiths wrote:

> Hi all,
>
> Not an area I'm that familiar with, but are there any good libraries out there
> that can do formant analysis of speech?
>
> cheers,
>
> dave

CMU Sphinx (Java) uses Cepstra for recognition.
That's the Fourier transform of the log-magnitude spectrum:
    fFt(ln( | fFt(window . signal) | ))

http://cmusphinx.sourceforge.net/sphinx4/ 

-- 
   Sam Chessman                                         chessman (a) tux.org
    First do what's necessary, then what's possible, finally the impossible.

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