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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;-*-mode:scheme-*-
;; ;;
;; Centre for Speech Technology Research ;;
;; University of Edinburgh, UK ;;
;; Copyright (c) 1996,1997 ;;
;; 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 ;;
;; WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN ;;
;; AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ;;
;; ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF ;;
;; THIS SOFTWARE. ;;
;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Author: Alan W Black
;;; Date: November 1997
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;
;; Adapted from text2wave by Alan Black. Original copyright listed above.
;;
;; Copyright 2004 by Gary Cramblitt <[email protected]>
;;
;; This scheme module is used by the Festival Interactive plugin,
;; which is part of KTTSD. To use,
;; (load sabletowave.scm)
;; after starting Festival interactively, then to synth text containing
;; SABLE tags to a single wave file.
;; (ktts_sabletowave "sable text" "filename" volume)
;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; List of generated intermediate wave files.
(defvar ktts_wavefiles nil)
(define (ktts_save_record_wave utt)
"Saves the waveform and records its so it can be joined into a
a single waveform at the end."
(let ((fn (make_tmp_filename)))
(utt.save.wave utt fn)
(set! ktts_wavefiles (cons fn ktts_wavefiles))
utt))
(define (ktts_combine_waves outfile volume)
"Join all the waves together into the desired output file
and delete the intermediate ones."
(let ((wholeutt (utt.synth (Utterance Text ""))))
(mapcar
(lambda (d)
(utt.import.wave wholeutt d t)
(delete-file d))
(reverse ktts_wavefiles))
;; (if ktts_frequency
;; (utt.wave.resample wholeutt (parse-number ktts_frequency)))
(if (not (equal? volume "1.0"))
(begin
(utt.wave.rescale wholeutt (parse-number volume))))
(utt.save.wave wholeutt outfile 'riff)
))
;;;
;;; Redefine what happens to utterances during text to speech.
;;; Synthesize each utterance and save to a temporary wave file.
;;;
(set! tts_hooks (list utt.synth ktts_save_record_wave))
(define (ktts_sabletowave text filename volume)
(set! ktts_wavefiles nil)
;; Do the synthesis, which creates multiple wave files.
(tts_text text 'sable)
;; Now put the waveforms together and adjust volume.
(ktts_combine_waves filename volume)
)
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