/usr/share/festival/voices/telugu/telugu_NSK_diphone/festvox/telugu_NSK_diphone.scm is in festvox-te-nsk 0.3.3-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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;;; ;;
;;; A diphone voice for Telugu language ;;
;;; ;;
;;; Copyright (c) 2005, DONLab, Dept. of CS&E, ;;
;;; IIT Madras <speech@lantana.tenet.res.in> ;;
;;; Copyright (c) 2005, Chaitanya Kamisetty <chaitanya@atc.tcs.co.in> ;;
;;; ;;
;;; This program is a part of festival-te. ;;
;;; ;;
;;; festival-te 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 ;;
;;; ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;; Try to find out where we are
(if (assoc 'telugu_NSK_diphone voice-locations)
(defvar telugu_dir
(cdr (assoc 'telugu_NSK_diphone voice-locations)))
;;; Not installed in Festival yet so assume running in place
(defvar telugu_dir (pwd)))
(if (not (probe_file (path-append telugu_dir "festvox/")))
(begin
(format stderr "telugu_NSK_diphone Can't find voice scm files they are not in\n")
(format stderr " %s\n" (path-append telugu_dir "festvox/"))
(format stderr " Either the voice isn't linked into Festival\n")
(format stderr " or you are starting festival in the wrong directory\n")
(error)))
;;; Add the directory contains general voice stuff to load-path
(set! load-path (cons (path-append telugu_dir "festvox/") load-path))
;;; Path for common telugu modules
;;; Debian distribution defines datadir, others use libdir
(if (symbol-bound? 'datadir)
(set! load-path (cons (path-append datadir "telugu_scm/") load-path)))
(set! load-path (cons (path-append libdir "telugu_scm/") load-path))
;;; other files we need
(require 'telugu_phones)
(require 'telugu_lex)
(require 'telugu_token)
(require 'telugu_NSK_int)
(require 'telugu_NSK_dur)
(require 'telugu_NSK_ene)
;;; Ensure we have a festival with the right diphone support compiled in
(require_module 'UniSyn)
(set! telugu_lpc_sep
(list
'(name "telugu_lpc_sep")
(list 'index_file (path-append telugu_dir "dic/NSKdiph.est"))
'(grouped "false")
(list 'coef_dir (path-append telugu_dir "lpc"))
(list 'sig_dir (path-append telugu_dir "lpc"))
'(coef_ext ".lpc")
'(sig_ext ".res")
(list 'default_diphone
(string-append
(car (cadr (car (PhoneSet.description '(silences)))))
"-"
(car (cadr (car (PhoneSet.description '(silences)))))))))
(set! telugu_lpc_group
(list
'(name "NSK_lpc_group")
(list 'index_file
(path-append telugu_dir "group/NSKlpc.group"))
'(grouped "true")
(list 'default_diphone
(string-append
(car (cadr (car (PhoneSet.description '(silences)))))
"-"
(car (cadr (car (PhoneSet.description '(silences)))))))))
;;Go ahead and set up the diphone db
;(set! telugu_db_name (us_diphone_init telugu_lpc_sep))
;;Once you've built the group file you can comment out the above and
;;uncomment the following.
(set! telugu_db_name (us_diphone_init telugu_lpc_group))
(define (telugu_NSK_diphone_fix utt)
"(telugu_NSK_diphone_fix UTT)
Map phones to phonological variants if the diphone database supports
them."
(mapcar
(lambda (s)
(let ((name (item.name s)))
;; Check and do something maybe
))
(utt.relation.items utt 'Segment))
utt)
(define (telugu_voice_reset)
"(telugu_voice_reset)
Reset global variables back to previous voice."
;; whatever
)
(define (telugu_NSK_diphone_fix_phone_name utt seg)
"(telugu_fix_phone_name UTT SEG)
Add the feature diphone_phone_name to given segment with the appropriate
name for constructing a diphone. Basically adds _ if either side is part
of the same consonant cluster, adds $ either side if in different
syllable for preceding/succeeding vowel syllable."
(let ((name (item.name seg)))
(cond
((string-equal name "pau") t)
((string-equal "-" (item.feat seg 'ph_vc))
(if (and (member_string name '(r w y l))
(member_string (item.feat seg "p.name") '(p t k b d g))
(item.relation.prev seg "SylStructure"))
(item.set_feat seg "us_diphone_right" (format nil "_%s" name)))
(if (and (member_string name '(w y l m n p t k))
(string-equal (item.feat seg "p.name") 's)
(item.relation.prev seg "SylStructure"))
(item.set_feat seg "us_diphone_right" (format nil "_%s" name)))
(if (and (string-equal name 's)
(member_string (item.feat seg "n.name") '(w y l m n p t k))
(item.relation.next seg "SylStructure"))
(item.set_feat seg "us_diphone_left" (format nil "%s_" name)))
(if (and (string-equal name 'hh)
(string-equal (item.feat seg "n.name") 'y))
(item.set_feat seg "us_diphone_left" (format nil "%s_" name)))
(if (and (string-equal name 'y)
(string-equal (item.feat seg "p.name") 'hh))
(item.set_feat seg "us_diphone_right" (format nil "_%s" name)))
(if (and (member_string name '(p t k b d g))
(member_string (item.feat seg "n.name") '(r w y l))
(item.relation.next seg "SylStructure"))
(item.set_feat seg "us_diphone_left" (format nil "%s_" name)))
)
((string-equal "ah" (item.name seg))
(item.set_feat seg "us_diphone" "aa"))
)))
;;; Full voice definition
(define (voice_telugu_NSK_diphone)
"(voice_telugu_NSK_diphone)
Set speaker to NSK in telugu from DON."
(voice_reset)
(Parameter.set 'Language 'telugu)
;; Phone set
(Parameter.set 'PhoneSet 'telugu)
(PhoneSet.select 'telugu)
;; token expansion (numbers, symbols, compounds etc)
(Parameter.set 'Token_Method 'Token_Any)
(set! token_to_words telugu_token_to_words)
;; No pos prediction (get it from lexicon)
(set! pos_lex_name nil)
(set! guess_pos telugu_guess_pos)
;; Phrase break prediction by punctuation
(set! pos_supported nil) ;; well not real pos anyhow
;; Phrasing
(set! phrase_cart_tree telugu_phrase_cart_tree_2)
(Parameter.set 'Phrase_Method 'cart_tree)
;; Lexicon selection
(lex.select "telugu")
;; No postlexical rules
(set! postlex_rules_hooks nil)
;; Accent and tone prediction
(set! int_accent_cart_tree telugu_accent_cart_tree)
(Parameter.set 'Int_Target_Method 'Simple)
;; Duration prediction
(set! duration_cart_tree telugu_NSK::zdur_tree)
;;(set! duration_ph_info telugu_NSK::phone_data)
(set! duration_ph_info telugu_NSK::phone_durs)
(Parameter.set 'Duration_Method 'Tree_ZScores)
(Parameter.set 'Duration_Stretch 1.4)
;; Energy prediction
(set! energy_cart_tree telugu_NSK::zene_treeMAX2)
(set! energy_ph_info telugu_NSK::phone_enesMAX2)
(Parameter.set 'Energy_Method 'Tree_ZScores)
;; Waveform synthesizer: diphones
(set! UniSyn_module_hooks (list telugu_NSK_diphone_fix))
(set! us_abs_offset 0.0)
(set! window_factor 1.0)
(set! us_rel_offset 0.0)
(set! us_gain 0.9)
(Parameter.set 'Synth_Method 'UniSyn)
(Parameter.set 'us_sigpr 'lpc)
(us_db_select telugu_db_name)
;; set callback to restore some original values changed by this voice
(set! current_voice_reset telugu_voice_reset)
(set! current-voice 'telugu_NSK_diphone)
)
(proclaim_voice
'telugu_NSK_diphone
'((language telugu)
(gender male)
(dialect COMMENT)
(description
"COMMENT"
)
(builtwith festvox-1.2)
(coding UTF-8)
))
(provide 'telugu_NSK_diphone)
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