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mbrola - multilingual software speech synthesizer


mbrola [options]<voice_database><pho_file>...<output_file>


mbrola is a speech synthesizer based on the concatenation of diphones. It takes a list
of phonemes as input, together with prosodic information (duration of phonemes and a
piecewise linear description of pitch), and produces speech samples on 16 bits
(linear), at the sampling frequency of the diphone database.

It is therefore NOT a Text-To-Speech (TTS) synthesizer, since it does not accept raw text
as input. In order to obtain a full TTS system, you need to use this synthesizer in
combination with a text processing system that produces phonetic and prosodic commands.
For instance, you may use package freephone to obtain complete English TTS.

A `-' instead of pho_file or output_file means stdin or stdout. Extension of output_file
( raw, au, wav, aiff ) tells the wanted audio format.


mbrola understands following command line options.

Show summary of options.

Display the database information if any.

Ignore fatal errors on unknown diphone.

-c comment_char
Set COMMENT char (escape sequence in pho files).

-F flush_command
Set FLUSH command name.

-v volume
Volume ratio. Float ratio applied to output samples.

-f freq_ratio
Frequency ratio. Float ratio applied to pitch points.

-t time_ratio
Time ratio. Float ratio applied to phone durations.

-l voice_freq
Voice frequency. Target frequency for voice quality in Hz.

-R rename_list
Phoneme rename list of the form: `a A b B ...'

-C clone_list
Phoneme clone list of the form: `a A b B ...'

-I file
Initialization file containing one command per line. CLONE, RENAME, VOICE, TIME,

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