1 /* 2 * Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 /** 17 * @file picoacph.h 18 * 19 * Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland 20 * All rights reserved. 21 * 22 * History: 23 * - 2009-04-20 -- initial version 24 * 25 */ 26 27 28 /** 29 * @addtogroup picoacph 30 * 31 itemtype, iteminfo1, iteminfo2, content -> TYPE(INFO1,INFO2)content 32 in the following 33 34 items input 35 =========== 36 37 processed by sa (POS disambiguation): 38 - WORDGRAPH(POSes,NA)graph 39 - WORDINDEX(POSes,NA)POS|1ind1...POSN|indN 40 - CMD(PICODATA_ITEMINFO1_CMD_FLUSH,PICODATA_ITEMINFO2_NA) 41 42 processed by sa (Phrasing, Accentuation): 43 - PUNC(PUNCtype,PUNCsubtype) 44 45 unprocessed: 46 - all other item types are forwarded through the PU without modification: 47 CMD 48 49 50 minimal input size (before processing starts) 51 ================== 52 53 processing (POS disambiguation, g2p, lexind, phrasing, accentuation) 54 is possible with 55 56 - one punctuation-phrase, consisting of a sequence (see below for 57 limits) of items terminated by a PUNC item. 58 59 (possible but not implemented: as long as the internal buffer is 60 empty, non-processed item types can be processed immediately) 61 62 Ensuring terminal PUNC item: 63 - when reading items from the external buffer a CMD(...FLUSH...) is 64 converted to a PUNC(...FLUSH...) item 65 - If needed, a PUNC(PHRASE) is artificially added to ensure a phrase 66 fits in the PUs memory and processing can start. 67 68 69 items processed and output 70 ========================== 71 72 precondition: 73 CMD(...FLUSH...) already converted to PUNC(...FLUSH...) and trailing 74 PUNC item enforced if necessary. 75 76 ---- 77 -# PROCESS_POSD: processing input WORDGRAPH or WORDINDEX items, after 78 POS disambiguation (POSes -> POS), results in a sequence of: 79 - 80 - WORDGRAPH(POS,NA)graph 81 - WORDINDEX(POS,NA)POS|ind 82 - 83 . 84 -# PROCESS_WPHO: then, after lex-index lookup and G2P in a 85 sequence of: 86 - WORDPHON(POS,NA)phon 87 88 (phon containing primary and secondary word-level stress) 89 90 ---- 91 3. PROCESS_PHR: then, after processing these WORDPHON items, 92 together with the trailing PUNC item results in: 93 94 -> BOUND(BOUNDstrength,BOUNDtype) 95 96 being added in the sequence of WORDPHON (respectively inserted instead 97 of the PUNC). All PUNC, incl PUNC(...FLUSH...) now gone. 98 99 ---- 100 4. PROCESS_ACC: then, after processing the WORDPHON and BOUND items 101 results in: 102 103 -> WORDPHON(POS,ACC)phon 104 105 A postprocessing step of accentuation is hard-coded in the 106 accentuation module: In case the whole word does not have any stress 107 at all (primary or secondary or both) then do the following mapping: 108 109 ACC0 nostress -> ACC0 110 ACC1 nostress -> ACC3 111 ACC2 nostress -> ACC3 112 ACC3 nostress -> ACC3 113 114 ---- 115 - POS 116 a single, unambiguous POS 117 118 cf. picodata.h for 119 - ACC (sentence-level accent (aka prominence)) %d 120 - PICODATA_ACC0 121 - PICODATA_ACC1 122 - PICODATA_ACC2 (<- maybe mapped to ACC1, ie. no ACC2 in output) 123 - PICODATA_ACC3 124 125 - BOUNDstrength %d 126 - PICODATA_ITEMINFO1_BOUND_SBEG (at sentence start) 127 - PICODATA_ITEMINFO1_BOUND_SEND (at sentence end) 128 - PICODATA_ITEMINFO1_BOUND_TERM (replaces a flush) 129 - PICODATA_ITEMINFO1_BOUND_PHR1 (primary boundary) 130 - PICODATA_ITEMINFO1_BOUND_PHR2 (short break) 131 - PICODATA_ITEMINFO1_BOUND_PHR3 (secondary phrase boundary, no break) 132 - PICODATA_ITEMINFO1_BOUND_PHR0 (no break, not produced by sa, not existing 133 BOUND in item sequence equals PHR0 bound strength) 134 135 - BOUNDtype (created in sa base on punctuation, indicates type of phrase 136 following the boundary) %d 137 - PICODATA_ITEMINFO2_BOUNDTYPE_P 138 - PICODATA_ITEMINFO2_BOUNDTYPE_T 139 - PICODATA_ITEMINFO2_BOUNDTYPE_Q 140 - PICODATA_ITEMINFO2_BOUNDTYPE_E 141 142 143 output sequence (without CMDs): 144 145 <output> = { BOUND(BOUND_SBEG,PHRASEtype) <sentence> BOUND(BOUND_SEND,..)} BOUND(BOUND_TERM,..) 146 147 <sentence> = <phrase> { BOUND(BOUND_PHR1|2|3,BOUNDtype) <phrase> } 148 149 <phrase> = WORDPHON(POS,ACC)phon { WORDPHON(POS,ACC)phon } 150 151 Done in later PU: mapping ACC & word-level stress to syllable accent value 152 - ACC0 prim -> 0 153 - ACC1 prim -> 1 154 - ACC2 prim -> 2 155 - ACC3 prim -> 3 156 - ACC0 sec -> 0 157 - ACC1 sec -> 4 158 - ACC2 sec -> 4 159 - ACC3 sec -> 4 160 161 other limitations 162 ================= 163 164 - item size: header plus len=256 (valid for Pico in general) 165 - see defines below for max nr of items. Item heads plus ref. to contents 166 buffer are stored in array with fixed size elements. Two restrictions: 167 - MAXNR_HEADX (max nr elements==items in headx array) 168 - CONTENTSSIZE (max size of all contents together 169 */ 170 171 172 #ifndef PICOACPH_H_ 173 #define PICOACPH_H_ 174 175 #include "picoos.h" 176 #include "picodata.h" 177 #include "picorsrc.h" 178 179 #ifdef __cplusplus 180 extern "C" { 181 #endif 182 #if 0 183 } 184 #endif 185 186 /* nr item restriction: maximum number of extended item heads in headx */ 187 #define PICOACPH_MAXNR_HEADX 60 188 189 /* nr item restriction: maximum size of all item contents together in cont */ 190 #define PICOACPH_MAXSIZE_CBUF 7680 191 192 193 194 picodata_ProcessingUnit picoacph_newAccPhrUnit( 195 picoos_MemoryManager mm, 196 picoos_Common common, 197 picodata_CharBuffer cbIn, 198 picodata_CharBuffer cbOut, 199 picorsrc_Voice voice); 200 201 #ifdef __cplusplus 202 } 203 #endif 204 205 #endif /*PICOACPH_H_*/ 206
