文件操作 - multiwave.scm

文件: /usr/share/festival/lib/multiwave.scm

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;;; Generating multiple waves from a single event

;; 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 'events)
(require 'ssml-mode)
(require 'tokenize)
(require 'util)

(defvar multi-waiting-waves nil)
(defvar multi-waiting-text nil)
(defvar multi-ssml-processing nil)

(define (multi-add-wave wave)
  (set! multi-waiting-waves (append multi-waiting-waves (list wave))))

(define (multi-event-synth type value)
  (event-synth-1 type value multi-add-wave))

(define (multi-synth-current-text)
  (let ((new-text (second (next-chunk multi-waiting-text))))
    (multi-event-synth 'text (substring multi-waiting-text
                                        0
                                        (- (length multi-waiting-text)
                                           (length new-text))))
    (set! multi-waiting-text new-text)))

;; External functions

(define (multi-clear)
  (set! multi-waiting-waves '())
  (set! multi-waiting-text "")
  (set! multi-ssml-processing nil))

(define (multi-synth type value)
  (multi-clear)
  (cond
   ((eq? type 'text)
    (set! multi-waiting-text value))
   ((eq? type 'ssml)
    (ssml-parse value)
    (set! multi-ssml-processing t))
   (t
    (multi-event-synth type value))))

(define (multi-next)
  (cond
   (multi-waiting-waves
    (let ((wave (car multi-waiting-waves)))
      (set! multi-waiting-waves (cdr multi-waiting-waves))
      wave))
   (multi-ssml-processing
    (let ((utt (ssml-next-chunk)))
      (cond
       ((symbol? utt)
        utt)
       (utt
        (utt.synth utt)
        (event-eat-utt utt multi-add-wave)
        (multi-next))
       (t
        (set! multi-ssml-processing nil)))))
   ((not (equal? multi-waiting-text ""))
    (multi-synth-current-text)
    (multi-next))
   (t
    nil)))

(provide 'multiwave)

文件操作 - multiwave.scm

文件: /usr/share/festival/lib/multiwave.scm

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