Sophie: festival-speechtools-devel-1.2.96-18.fc14 i686

festival-speechtools-devel-1.2.96-18.fc14.i686.rpm

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   <TITLE> Functions for use with frame based processing</TITLE>
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<TD VALIGN=TOP><H2> <A HREF="#DOC.DOCU">Functions for use with frame based processing</A></H2></TD></H2></TD></TR></TABLE>

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<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="sig2coef"></A>
<A HREF=sig2coef.html><B>sig2coef</B></A></TD><TD><BR>
<I>Produce a single set of coefficents from a waveform.</I>
</TD></TR><TR><TD VALIGN=TOP>
<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="sigpr_base"></A>
<A HREF=sigpr_base.html><B>sigpr_base</B></A></TD><TD><BR>
<I>Produce multiple coefficients from a waveform by repeated calls to sig2coef.</I>
</TD></TR><TR><TD VALIGN=TOP>
<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="power"></A>
<A HREF=power.html><B>power</B></A></TD><TD><BR>
<I>Calculate the power for each frame of the waveform.</I>
</TD></TR><TR><TD VALIGN=TOP>
<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="energy"></A>
<A HREF=energy.html><B>energy</B></A></TD><TD><BR>
<I>Calculate the rms energy for each frame of the waveform.</I>
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<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="fbank"></A>
<A HREF=fbank.html><B>fbank</B></A></TD><TD><BR>
<I>Mel scale filter bank analysis.</I>
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<IMG ALT="o" BORDER=0 SRC=icon1.gif><A NAME="melcep"></A>
<A HREF=melcep.html><B>melcep</B></A></TD><TD><BR>
<I>Mel scale cepstral analysis via filter bank analysis.</I>
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<A NAME="DOC.DOCU"></A>
<BLOCKQUOTE>
In the following functions, the input is a <!1><A HREF="EST_Wave.html">EST_Wave</A> waveform,
and the output is a (usually multi-channel) <!1><A HREF="EST_Track.html">EST_Track</A>.  The
track must be set up appropriately before hand. This means the track
must be resized accordingly with the correct numbers of frame and
channels.

<P>The positions of the frames are found by examination of the <B>time</B>
array in the EST_Track, which must be filled prior to the function
call. The usual requirement is for fixed frame analysis, where each
analysis frame is, say, 10ms after the previous one. 

<P>A common alternative is to perform pitch-synchronous
analysis where the time shift is related to the local pitch period.
</BLOCKQUOTE>
<DL><DT><DD></DL><P><P><I><A HREF="index.html">Alphabetic index</A></I> <I><A HREF="HIER.html">Hierarchy of classes</A></I></P><HR>
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<P Align=left><I>This page is part of the 
<A HREF="http://www.cstr.ed.ac.uk/projects/speech_tools.html">
Edinburgh Speech Tools Library</A> documentation
<br>
Copyright <A HREF="http://www.ed.ac.uk"> University of Edinburgh</A> 1997
<br>
Contact: <A HREF="mailto:speech_toolss@cstr.ed.ac.uk"> 
         speech_tools@cstr.ed.ac.uk </a>
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