/usr/share/festival/prosody-param.scm is in festival-freebsoft-utils 0.10-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 | ;;; Changing prosody parameters
;; Copyright (C) 2004, 2006, 2008 Brailcom, o.p.s.
;; Author: Milan Zamazal <pdm@brailcom.org>
;; COPYRIGHT NOTICE
;; This program is free software; you can redistribute it and/or modify
;; it under the terms of the GNU General Public License as published by
;; the Free Software Foundation; either version 2 of the License, or
;; (at your option) any later version.
;; This program is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
;; for more details.
;; You should have received a copy of the GNU General Public License
;; along with this program; if not, write to the Free Software
;; Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
(require 'util)
(defvar prosody-testing-word "babebibobub")
;;; Prosody parameter accessors
(define (prosody-get-pitch)
;; This is now easy thing, there are many intonation methods in Festival,
;; more methods can be added and the Int_Target_Method parameter can be
;; wrapped
(cond
((prosody-general-method?)
(or (avalue-get 'f0_mean int_general_params)
(prosody-general-pitch)))
((prosody-lr-method?)
(avalue-get 'target_f0_mean int_lr_params))
((prosody-simple-method?)
(avalue-get 'f0_mean int_simple_params))))
(define (prosody-set-pitch value)
(cond
((prosody-general-method?)
(if (avalue-get 'f0_mean int_general_params)
(set! int_general_params
(assoc-set int_general_params 'f0_mean (list value)))
(prosody-set-general-pitch value)))
((prosody-lr-method?)
(set! int_lr_params
(assoc-set int_lr_params 'target_f0_mean (list value))))
((prosody-simple-method?)
(set! int_simple_params
(assoc-set int_simple_params 'f0_mean (list value))))))
(define (prosody-get-pitch-range)
(cond
((prosody-general-method?)
(or (avalue-get 'f0_std int_general_params)
(prosody-general-pitch-range)))
((prosody-lr-method?)
(avalue-get 'target_f0_std int_lr_params))
((prosody-simple-method?)
(avalue-get 'f0_mean int_simple_params))))
(define (prosody-set-pitch-range value)
(cond
((prosody-general-method?)
(if (avalue-get 'f0_std int_general_params)
(set! int_general_params
(assoc-set int_general_params 'f0_std (list value)))
(prosody-set-general-pitch-range value)))
((prosody-lr-method?)
(set! int_lr_params
(assoc-set int_lr_params 'target_f0_std (list value))))
((prosody-simple-method?)
(set! int_simple_params
(assoc-set int_simple_params 'f0_std (list value))))))
(defvar prosody-volume 1)
(define (prosody-get-volume)
prosody-volume)
(define (prosody-set-volume value)
(add-hook after_synth_hooks prosody-adjust-volume t)
(set! prosody-volume value))
(define (prosody-get-rate)
(/ 1 (Param.get 'Duration_Stretch)))
(define (prosody-set-rate value)
(Param.set 'Duration_Stretch (/ 1 value)))
;;; Internal utilities
(defvar prosody-parameters '())
(define (prosody-change-parameter value get-func set-func min max)
(let* ((old-value (get-func))
(new-value (if (eq? (typeof value) 'closure)
(value old-value)
value)))
(cond
((> new-value max)
(set! new-value max))
((< new-value min)
(set! new-value min)))
(set-func new-value)
old-value))
(define (prosody-adjust-volume utt)
(utt.wave.rescale utt prosody-volume))
;;; Internal utilities -- general intonation method handling
(defvar prosody-voice-f0-alist '()) ; items: (VOICE PITCH RANGE)
(defvar prosody-voice-pitch-factor '()) ; (CURRENT-VOICE PITCH RANGE)
(defmac (define-prosody-method-test form)
(let* ((method-name (nth 1 form))
(method-function-name (intern (string-append "Int_Targets_" method-name)))
(function-name (intern (string-append "prosody-" (downcase method-name) "-method?"))))
`(define (,function-name)
(let ((int-method (Param.get 'Int_Target_Method)))
(or (eq? int-method ,method-function-name)
(equal? int-method (quote ,method-function-name))
(equal? (Param.get 'Int_Method) ,method-name))))))
(define-prosody-method-test "General")
(define-prosody-method-test "LR")
(define-prosody-method-test "Simple")
(define (prosody-general-base-f0)
(or (second (assoc current-voice prosody-voice-f0-alist))
(let ((orig-targ-func (avalue-get 'targ_func int_general_params))
(pitch-list '()))
(avalue-set! 'targ_func int_general_params
(lambda (utt syl)
(let ((result (orig-targ-func utt syl)))
(set! pitch-list (append pitch-list
(mapcar cadr result)))
result)))
(unwind-protect*
(SynthText prosody-testing-word)
(avalue-set! 'targ_func int_general_params orig-targ-func))
(set! pitch-list (or (butlast (cdr pitch-list)) '(100)))
(let* ((n (length pitch-list))
(pitch (/ (apply + pitch-list) n))
(range (/ (apply + (mapcar (lambda (p) (abs (- p pitch))) pitch-list)) n)))
(set! prosody-voice-f0-alist (assoc-set prosody-voice-f0-alist
current-voice (list pitch range)))
pitch))))
(define (prosody-general-f0-range)
(prosody-general-base-f0)
(third (assoc current-voice prosody-voice-f0-alist)))
(define (prosody-general-pitch)
(* (prosody-general-base-f0) (prosody-current-voice-pitch-factor)))
(define (prosody-general-pitch-range)
(* (prosody-general-f0-range) (prosody-current-voice-pitch-range-factor)))
(define (prosody-current-voice-pitch-factor)
(when (or (null? prosody-voice-pitch-factor)
(not (equal? current-voice (first prosody-voice-pitch-factor))))
(set! prosody-voice-pitch-factor (list current-voice 1 1)))
(second prosody-voice-pitch-factor))
(define (prosody-current-voice-pitch-range-factor)
(prosody-current-voice-pitch-factor) ; ensure the factor is defined
(third prosody-voice-pitch-factor))
(define (prosody-ensure-targ-func-wrapped)
(unless (assoc 'prosody-wrapper-enabled int_general_params)
(prosody-general-base-f0) ; store original base f0
(let ((orig-func (avalue-get 'targ_func int_general_params)))
(avalue-set! 'targ_func int_general_params
(lambda (utt syl)
(prosody-change-general-pitch utt syl orig-func)))
(set! int_general_params (cons '(prosody-wrapper-enabled t)
int_general_params)))))
(define (prosody-set-general-pitch freq)
(prosody-ensure-targ-func-wrapped)
(set! prosody-voice-pitch-factor
(list current-voice
(/ freq (prosody-general-base-f0))
(or (third prosody-voice-pitch-factor) 1))))
(define (prosody-set-general-pitch-range range)
(prosody-ensure-targ-func-wrapped)
(set! prosody-voice-pitch-factor
(list current-voice
(or (second prosody-voice-pitch-factor) 1)
(/ range (prosody-general-f0-range)))))
(define (prosody-change-general-pitch utt syl next-func)
(let ((base-pitch (prosody-general-base-f0))
(pitch-factor (prosody-current-voice-pitch-factor))
(range-factor (prosody-current-voice-pitch-range-factor)))
(mapcar (lambda (spec)
(cons (first spec)
(cons (* pitch-factor (+ base-pitch (* range-factor (- (second spec) base-pitch))))
(cddr spec))))
(next-func utt syl))))
;;; Exported functions
(define (prosody-shifted-value shift)
(lambda (x) (+ shift x)))
(define (prosody-relative-value coef)
(lambda (x) (* coef x)))
(define (set-pitch pitch)
;; Hz or a function
(prosody-change-parameter pitch prosody-get-pitch prosody-set-pitch 50 500))
(define (set-pitch-range pitch-range)
;; mean-in-% or a function
(prosody-change-parameter pitch-range prosody-get-pitch-range
prosody-set-pitch-range 0 100))
(define (set-volume volume)
;; 0..1 or a function
(prosody-change-parameter volume prosody-get-volume prosody-set-volume 0 1))
(define (set-rate rate)
;; 0+..1..inf- or a function
(prosody-change-parameter rate prosody-get-rate prosody-set-rate 0.1 10))
(define (change-prosody function param)
(prog1 (function param)
(set! prosody-parameters (assoc-set prosody-parameters function param))))
(define (restore-prosody)
(let ((parameters prosody-parameters))
(while parameters
((caar parameters) (cdar parameters))
(set! parameters (cdr parameters)))))
(define (reset-prosody)
(set! prosody-parameters '()))
(provide 'prosody-param)
|