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Re: Cepstrum computation

To: AUDITORY@xxxxxxxxxxxxxxx
Subject: Re: Cepstrum computation
From: Paul Boersma <boersma@xxxxxxxxxxxxxx>
Date: Wed, 23 Jun 1999 15:34:35 -0600
Reply-to: boersma@xxxxxxxxxxxxxx
Sender: AUDITORY Research in Auditory Perception <AUDITORY@xxxxxxxxxxxxxxx>

Jont Allen wrote:

> If you use the matlab/ieee fft, as defined,
> to do cepstrum calculations, you already are in trouble. It is scaled so that
> its output does not correspond to power. Thus it doesnt work for such
> calculations.

I use the Praat fft, and don't get into trouble, since it is scaled so that
its output is expressed in true spectral density, i.e. Pascal/Hertz.


--
Paul Boersma
Institute of Phonetic Sciences, University of Amsterdam
Herengracht 338, 1016CG Amsterdam, The Netherlands
tel:  +31-20-5252385 / 5252183 (fax: 5252197)
http://www.fon.hum.uva.nl/paul/

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