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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Festival is a free voice that sounds like
a machine. Cepstral is a fee based “human” voice ($30 USD per
voice per CPU). They are similar in that they both produce mechanically
timed output. IMO, you should use festival if this isn’t a customer
based interface. If it is a CBI, use cepstral and if you don’t like
it, recreate the wav files it plays (The English language is only based on
about 1700 sounds). Cepstral is your choice if your IVR is going to be “asterisk
interlaced” since all asterisk voices are “Cepstral Allison”
out of the can.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'>
asterisk-users-bounces@lists.digium.com
[mailto:asterisk-users-bounces@lists.digium.com] <b><span style='font-weight:
bold'>On Behalf Of </span></b>Eric Fort<br>
<b><span style='font-weight:bold'>Sent:</span></b> Tuesday, December 02, 2008
2:53 AM<br>
<b><span style='font-weight:bold'>To:</span></b> <st1:PersonName w:st="on">Asterisk
Users Mailing List - Non-Commercial Discussion</st1:PersonName><br>
<b><span style='font-weight:bold'>Subject:</span></b> [asterisk-users] cepstral
vs festival</span></font><o:p></o:p></p>
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<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>I'm about to begin working on an ivr project to do database backed
scheduling. I would like to use text to speech in some places. What
are the differences in using festival vs. Cepstral? How are they similar,
how are they different? Is one really better than the other? How
and Why?<br>
<br>
Thanks,<br>
<br>
Eric<o:p></o:p></span></font></p>
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