The MBROLA Synthesizer
The MBROLA Synthesizer
The MBROLA Synthesizer
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<strong>The</strong> <strong>MBROLA</strong> <strong>Synthesizer</strong><br />
Nicolas D’Alessandro<br />
Laboratoire de Théorie des Circuits et Traitement de Signal<br />
Faculté Polytechnique de Mons<br />
<strong>MBROLA</strong> story<br />
from 1993 to today...<br />
72 voices, 34 languages
<strong>MBROLA</strong> story<br />
Prof. Thierry Dutoit<br />
TCTS Lab - FPMs<br />
“<strong>MBROLA</strong> success is much more the result of a<br />
dynamic and collaborative communauty than a<br />
strong technical improvement.”<br />
<strong>MBROLA</strong> framework<br />
the .pho file<br />
the DBa selection<br />
the PSOLA processing<br />
smoothing processing
<strong>The</strong> .pho file<br />
_ 12 0 127<br />
b 140 66 134<br />
a 544 23 211 65 264 89 154<br />
_ 14 100 126<br />
duration (ms)<br />
f0<br />
SAMPA notation<br />
(phonemes in ASCII)<br />
23 65 89<br />
%<br />
<strong>The</strong> .pho file<br />
<strong>The</strong> .pho file does not contain<br />
any volume information!<br />
<strong>The</strong> short-time volume variations<br />
(like the /pa/ burst) are in the diphones<br />
<strong>The</strong> long-term volume variations have<br />
no industrial applications
<strong>The</strong> <strong>MBROLA</strong> database<br />
preprocessing on audio files to ease the synthesis part<br />
about 3000 diphones to record: quite short!<br />
<strong>The</strong> database selection<br />
At least two phonemes to start synthesis!
PSOLA processing<br />
Smoothing processing<br />
Reduce discontinuities!<br />
Forward-backward process!<br />
Synthesis starts after 5 (2-1-2) phonemes!
It is demo time!<br />
<strong>MBROLA</strong><br />
MacTTS<br />
MBROLiX<br />
Max<strong>MBROLA</strong>~<br />
Max<strong>MBROLA</strong> Tools
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