/usr/share/festival/multisyn/multisyn.scm is in festival 1:2.1~release-8.
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;;; ;;
;;; Centre for Speech Technology Research ;;
;;; University of Edinburgh, UK ;;
;;; Copyright (c) 2003, 2004 ;;
;;; All Rights Reserved. ;;
;;; ;;
;;; Permission is hereby granted, free of charge, to use and distribute ;;
;;; this software and its documentation without restriction, including ;;
;;; without limitation the rights to use, copy, modify, merge, publish, ;;
;;; distribute, sublicense, and/or sell copies of this work, and to ;;
;;; permit persons to whom this work is furnished to do so, subject to ;;
;;; the following conditions: ;;
;;; 1. The code must retain the above copyright notice, this list of ;;
;;; conditions and the following disclaimer. ;;
;;; 2. Any modifications must be clearly marked as such. ;;
;;; 3. Original authors' names are not deleted. ;;
;;; 4. The authors' names are not used to endorse or promote products ;;
;;; derived from this software without specific prior written ;;
;;; permission. ;;
;;; ;;
;;; THE UNIVERSITY OF EDINBURGH AND THE CONTRIBUTORS TO THIS WORK ;;
;;; DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING ;;
;;; ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT ;;
;;; SHALL THE UNIVERSITY OF EDINBURGH NOR THE CONTRIBUTORS BE LIABLE ;;
;;; FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES ;;
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;;; THIS SOFTWARE. ;;
;;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;
;;; Multisyn top level scheme code (Korin Richmond and Rob Clark)
;;;
; Requires
(require_module 'UniSyn)
(require_module 'MultiSyn)
(require 'multisyn_pauses)
(require 'target_cost)
;; use a global parameter to specify which UnitSelection voice
;; to use to synthesise a given utterance for now, because the
;; standard Festival synthesis mainline doesn't accept a voice
;; parameter. (This should be set to the current voice object)
(defvar currentMultiSynVoice nil)
(defvar relp t)
(defvar flattenVoice nil)
; extract utt list from a .data file
(define (load_utt_list filename)
"(load_utt_list filename)
Loads a fextvox .data file and extracts an utterance list."
(let (l entries)
(set! entries (load filename t))
(mapcar
(lambda (d)
(set! l (cons (car d) l))
t)
entries)
l))
;; SynthType definition, main entry point.
(defSynthType MultiSyn
;(print "Multisyn unit selection synthesis")
(defvar MultiSyn_module_hooks nil)
(Param.def "unisyn.window_name" "hanning")
(Param.def "unisyn.window_factor" 1.0)
;; Unisyn requires these to be set.
(set! us_abs_offset 0.0)
(set! us_rel_offset 0.0)
(apply_hooks MultiSyn_module_hooks utt) ;; 4processing of diphone names
;; find appropriate unit sequence and put sythesis
;; parameters in the Unit relation of the utterance structure
(voice.getUnits currentMultiSynVoice utt)
;(print "doing concat")
(us_unit_concat utt)
;(print "doing raw concat")
(utt.relation.create utt 'SourceSegments)
(set! do_prosmod (du_voice.prosodic_modification currentMultiSynVoice))
(if do_prosmod
(begin
(if (not (member 'f0 (utt.relationnames utt)))
(targets_to_f0 utt))
;; temporary fix
(if (utt.relation.last utt 'Segment)
(set! pm_end (+ (item.feat (utt.relation.last utt 'Segment) "end") 0.02))
(set! pm_end 0.02))
(us_f0_to_pitchmarks utt 'f0 'TargetCoef pm_end)
(us_mapping utt 'segment_single))
(begin
(utt.copy_relation utt 'SourceCoef 'TargetCoef)
(us_mapping utt "linear")))
;(print "generating wave")
;; specify something else if you don't want lpc
(us_generate_wave utt 'lpc)
)
; target cost scheme code
(define (targetcost it1 it2)
(Default_Target_Cost it1 it2))
; Evil function which writes the functions to actually load and switch new voices.
(define (make_voice_definition name srate config_function backoff_rules data_dir config)
"(make_voice_definition NAME SRATE CONFIG_FUNCTION BACKOFF_RULES DATA_DIR CONFIG)
Create the fuction definitions to load and unload a voice."
(let ((voice_name (string-append "voice_" name))
(free_name (string-append "free_voice_" name))
(pre_config_function (string-append config_function "_pre"))
(voice_variable (upcase (string-append "voice_" name))))
(eval (list 'defvar (intern voice_variable) nil))
(eval (list 'define (list (intern voice_name))
(list 'if (intern pre_config_function)
(list (intern pre_config_function) (intern voice_variable)))
(list 'if (list 'null (intern voice_variable))
(list 'set! (intern voice_variable)
(list 'multisyn_load_voice_modules
(list 'quote name)
srate
(list 'quote backoff_rules)
data_dir
(list 'quote config))))
(list (intern config_function) (intern voice_variable))
(list 'set! 'current-voice (list 'quote name))
(list 'define_current_voice_reset)
(list 'set! 'currentMultiSynVoice (intern voice_variable))
))
(eval (list 'define
(list (intern free_name))
(list 'cond
(list (list 'null (intern voice_variable))
(list 'error "Voice not currently loaded!"))
(list (list 'eq? 'currentMultiSynVoice (intern voice_variable))
(list 'error "Can't free current voice!"))
(list 't (list set! (intern voice_variable) 'nil))))))
nil)
(define (multisyn_load_voice_modules name srate backoff_rules base_dir module_list)
"(multisyn_add_module voice name srate backoff_rules base_dir module_list)
Add voice modules to a voice."
(let (voice)
(mapcar
(lambda (module_entry)
(let ((dirs (car module_entry))
(utt_list (load_utt_list (path-append base_dir
(cadr module_entry)))))
(if (null voice)
(set! voice (make_du_voice utt_list dirs srate))
(voice.addModule voice utt_list dirs srate))))
module_list)
(voice.setName voice name)
(if flattenVoice
(du_voice.setTargetCost voice "flat")
(du_voice.setTargetCost voice t))
(du_voice.setJoinCost voice t)
(format t "Please wait: Initialising multisyn voice.\n")
(voice.init voice)
(format t " Voice loaded successfully!\n")
(du_voice.set_ob_pruning_beam voice 0.25)
(du_voice.set_pruning_beam voice 0.25)
(du_voice.setDiphoneBackoff voice backoff_rules)
voice))
(define (define_current_voice_reset)
"(define_current_voice_reset)
Re-define (current_voice_reset) correctly."
(eval (list 'define
(list 'current_voice_reset)
(list 'multisyn_reset_globals))))
(define (multisyn_reset_globals)
"(multisyn_reset_globals)
Reset multisyn specific global variables."
(Param.set 'unisyn.window_symmetric 1))
(provide 'multisyn)
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