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/*
* Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
/**
* @file picospho.h
*
* sentence phonemic/phonetic FSTs PU
*
* Copyright (C) 2008-2009 SVOX AG, Baslerstr. 30, 8048 Zuerich, Switzerland
* All rights reserved.
*
* History:
* - 2009-04-20 -- initial version
*
*/
/** @addtogroup picospho
itemtype, iteminfo1, iteminfo2, content -> TYPE(INFO1,INFO2)content
in the following
items input
===========
processed:
- WORDPHON(POS,WACC)phon
- BOUND(BOUNDstrength,BOUNDtype)
unprocessed:
- all other item types are forwared through the PU without modification
- POS
a the single, unambiguous POS
cf. picodata.h for
- WACC (sentence-level accent (aka prominence))
PICODATA_ACC0
PICODATA_ACC1
PICODATA_ACC2 (<- maybe mapped to ACC1, ie. no ACC2 in output)
PICODATA_ACC3
- BOUNDstrength
PICODATA_ITEMINFO1_BOUND_SBEG (sentence start)
PICODATA_ITEMINFO1_BOUND_SEND (at sentence end)
PICODATA_ITEMINFO1_BOUND_TERM (replaces a flush)
PICODATA_ITEMINFO1_BOUND_PHR0 (no break)
PICODATA_ITEMINFO1_BOUND_PHR1 (primary boundary)
PICODATA_ITEMINFO1_BOUND_PHR2 (short break)
PICODATA_ITEMINFO1_BOUND_PHR3 (secondary phrase boundary, no break)
- BOUNDtype (actually phrase type of the following phrase)
PICODATA_ITEMINFO2_BOUNDTYPE_P (non-terminal phrase)
PICODATA_ITEMINFO2_BOUNDTYPE_T (terminal phrase)
PICODATA_ITEMINFO2_BOUNDTYPE_Q (question terminal phrase)
PICODATA_ITEMINFO2_BOUNDTYPE_E (exclamation terminal phrase)
output sequence (without CMDs):
<output> = { BOUND(BOUND_SBEG,PHRASEtype) <sentence> BOUND(BOUND_SEND,..)} BOUND(BOUND_TERM,..)
<sentence> = <phrase> { BOUND(BOUND_PHR1|2|3,PHRASEtype) <phrase> }
<phrase> = WORDPHON(POS,ACC)phon { WORDPHON(POS,ACC)phon }
mapping ACC & word-level stress to syllable accent value
ACC0 prim -> 0
ACC1 prim -> 1
ACC2 prim -> 2
ACC3 prim -> 3
ACC0 sec -> 0
ACC1 sec -> 4
ACC2 sec -> 4
ACC3 sec -> 4
Mapping of values to FST symbol id (has to identical to the symbol table used when compiling the FST)
Value FST symbol id
phoneme_id -> phoneme_id + 256 * PICOKFST_PLANE_PHONEMES
POS_id -> POS_id + 256 * PICOKFST_PLANE_POS
phrasetype_id -> phrasetype_id + 256 * PICOKFST_PLANE_PHRASETYPES
accentlevel_id -> accentlevel_id + 256 * PICOKFST_PLANE_ACCENTS
minimal input size (before processing starts)
==================
processing (ie. sequencially applying spho transducers to phoneme sequence composed of
- phonemes inside WORDPHON items and
- pseudo-phonemes derived from boundaries and POS) is possible with
- one phrase, consisting of a sequence of maximal 30 non-PUNC items
terminated by a PUNC item. A PUNC is artificially enforced if
needed to start processing.
- as long as the internal buffer is empty, non-processed item types
can be processed immediately
items output
============
- BOUND(BOUNDstrength,BOUNDtype)
bound strength may be changed by the fsts
in addition, BOUNDs of BOUNDstrength = PHR0 are inserted to mark word boundaries
- SYLLPHON(POS,ACC)phon
where POS is only set for the first syllable of a word, otherwise NA
other limitations
=================
*/
#ifndef PICOSPHO_H_
#define PICOSPHO_H_
#include "picoos.h"
#include "picodata.h"
#include "picorsrc.h"
#ifdef __cplusplus
extern "C" {
#endif
#if 0
}
#endif
picodata_ProcessingUnit picospho_newSentPhoUnit(
picoos_MemoryManager mm,
picoos_Common common,
picodata_CharBuffer cbIn,
picodata_CharBuffer cbOut,
picorsrc_Voice voice);
#ifdef __cplusplus
}
#endif
#endif /*PICOSPHO_H_*/
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