14a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project/*---------------------------------------------------------------------------* 24a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * voicing.c * 34a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 44a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Copyright 2007, 2008 Nuance Communciations, Inc. * 54a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 64a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the 'License'); * 74a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * you may not use this file except in compliance with the License. * 84a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 94a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * You may obtain a copy of the License at * 104a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 * 114a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 124a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Unless required by applicable law or agreed to in writing, software * 134a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * distributed under the License is distributed on an 'AS IS' BASIS, * 144a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 154a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * See the License for the specific language governing permissions and * 164a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * limitations under the License. * 174a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * * 184a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project *---------------------------------------------------------------------------*/ 194a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 204a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdlib.h> 234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <string.h> 244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <math.h> 254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <assert.h> 264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <limits.h> 284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#ifndef _RTT 294a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include <stdio.h> 304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#endif 314a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 324a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include "all_defs.h" 334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include "voicing.h" 344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include "portable.h" 364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#include "../cfront/sh_down.h" 384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#define DEBUG 0 404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectstatic const char voicing[] = "$Id: voicing.c,v 1.1.10.5 2007/10/15 18:06:24 dahan Exp $"; 434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 444a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 454a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectvoid init_voicing_analysis(voicing_info *chan) 464a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project{ 474a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->count = -1; 484a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->sil_count = 0; 494a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->speech_count = 0; 504a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->fast_count = 0; 514a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#if DEBUG 524a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project log_report("U: 255 255 255 -1 -1 -1 -1\n"); 534a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#endif 544a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return; 554a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 564a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 574a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Projectlong voicing_analysis(voicing_info *chan, voicedata enval , int* log) 584a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project{ 594a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project long retval; 604a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project int threshold; 614a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 624a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->count < 0) 634a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 644a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b1 = SHIFT_UP(enval, 8); 654a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b0 = SHIFT_UP(enval, 8); 664a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->count = -1; 674a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 684a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 694a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* background level 704a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 714a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->b0 > SHIFT_UP(enval, 8)) 724a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project { 734a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b0 = SHIFT_UP(enval, 8); 744a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->count = 0; 754a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project } 764a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->count > B0_HANG2) 774a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b0 += B0_RATE2; 784a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else if (chan->count > B0_HANG1) 794a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b0 += B0_RATE1; 804a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 814a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->count++; 824a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 834a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* the second background level 844a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 854a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if ((enval - chan->quiet_margin) < (chan->b0 >> 8)) 864a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b1 += SHIFT_DOWN(B1_RATE * (SHIFT_UP(enval, 8) - chan->b1), 8); 874a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 884a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* speech level 894a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 904a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->s0 < SHIFT_UP(enval, 8)) 914a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->s0 = SHIFT_UP(enval, 8); 924a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else 934a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->s0 -= B0_RATE1; 944a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 954a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* increase the range by 25% */ 964a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project threshold = (chan->b1 + (SHIFT_DOWN( 974a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project MAX(chan->s0 - chan->b0 - DYNAMIC_RANGE, 0), 2))) >> 8; 984a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 994a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* Is it speech? 1004a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 1014a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (enval > (threshold + chan->margin)) 1024a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->speech_count++; 1034a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else 1044a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->speech_count = 0; 1054a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1064a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /* Is it Fast-match speech 1074a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project */ 1084a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (enval > (threshold + chan->fast_margin)) 1094a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->fast_count++; 1104a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else 1114a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->fast_count = 0; 1124a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1134a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (enval <= (threshold + chan->quiet_margin)) 1144a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->sil_count++; 1154a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else 1164a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->sil_count = 0; 1174a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1184a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project /******************* 1194a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project * Returning flags * 1204a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project *******************/ 1214a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1224a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project retval = 0L; 1234a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1244a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->fast_count > chan->voice_duration) 1254a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project retval = FAST_VOICE_BIT; 1264a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project else if (chan->sil_count > chan->quiet_duration) 1274a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project retval = QUIET_BIT; 1284a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1294a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->speech_count > chan->voice_duration) 1304a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project retval |= VOICE_BIT; 1314a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1324a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project if (chan->sil_count > 0) 1334a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project retval |= BELOW_THRESHOLD_BIT; 1344a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project 1354a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->voice_status = retval; 1364a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#if DEBUG 1374a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project log_report("U: %d %.1f %.1f, %d %d %d %d\n", (int) enval, 1384a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->b0 / 256.0, chan->b1 / 256.0, 1394a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->speech_count, chan->fast_count, 1404a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project chan->sil_count, chan->count); 1414a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project#endif 1424a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project return (retval); 1434a68b3365c8c50aa93505e99ead2565ab73dcdb0The Android Open Source Project} 144