Festival Speech Synthesis System: - Speech Resource Pages

(define (targ_func1 utt syl)
"(targ_func1 UTT STREAMITEM)
Returns a list of targets for the given syllable."
(let ((start (item.feat syl 'syllable_start))
(end (item.feat syl 'syllable_end)))
(if (equal? (item.feat syl "R:Intonation.daughter1.name") "Accented")
(list
(list start 110)
(list (/ (+ start end) 2.0) 140)
(list end 100)))))
This function may be identified as the function to call by the following setup parameters.
(Parameter.set 'Int_Method 'General)
(Parameter.set 'Int_Target_Method Int_Targets_General)
(set! int_general_params
(list
(list 'targ_func targ_func1)))
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18.6 Using ToBI
An example implementation of a ToBI to F0 target module is included in `lib/tobi_rules.scm' based on the
rules described in jilka96. This uses the general intonation method discussed in the previous section. This is designed
to be useful to people who are experimenting with ToBI (silverman92), rather than general text to speech.
To use this method you need to load `lib/tobi_rules.scm' and call setup_tobi_f0_method. The
default is in a male's pitch range, i.e. for voice_rab_diphone. You can change it for other pitch ranges by
changing the folwoing variables.
(Parameter.set 'Default_Topline 110)
(Parameter.set 'Default_Start_Baseline 87)
(Parameter.set 'Default_End_Baseline 83)
(Parameter.set 'Current_Topline (Parameter.get 'Default_Topline))
(Parameter.set 'Valley_Dip 75)
An example using this from STML is given in `examples/tobi.stml'. But it can also be used from Scheme.
For example before defining an utterance you should execute the following either from teh command line on in some
setup file
(voice_rab_diphone)
(require 'tobi_rules)
(setup_tobi_f0_method)
In order to allow specification of accents, tones, and break levels you must use an utterance type that allows such
specification. For example