2010318163752818

Recommendations

Info

The adaptive codebook is initialized by filling it with zeros. Table 3.88 — Representation table for adaptive codebook gain Scale factor: 2^17 Index cba_gain Index cba_gain 0 12386 3 47147 1 27800 4 54827 2 38483 5 61669 Scale factor: 2^15 Index cba_gain Index cba_gain 6 16993 15 30284 7 18520 16 31877 8 20021 17 33607 9 21493 18 35550 10 22938 19 37808 11 24396 20 40613 12 25834 21 44122 13 27292 22 48847 14 28767 23 55745 Scale factor: 2^8 Index cba_gain Index cba_gain 24 528 28 5553 25 727 29 11107 26 1388 30 22214 27 2777 31 44426 Table 3.89 — Representation table for fixed codebook gain Scale factor: 2^12 Index cbf_gain Index cbf_gain 0 8192 4 26573 1 11578 5 34324 2 14877 6 44160 3 19909 7 55564 Scale factor: 2^9 Index cbf_gain Index cbf_gain 8 8739 14 28624 9 10823 15 33682 10 13458 16 39118 11 16451 17 45372 12 19978 18 52626 13 24039 19 60243 ISO/IEC 14496-3:2005(E) © ISO/IEC 2005 — All rights reserved 59
ISO/IEC 14496-3:2005(E) Scale factor: 2^5 Index cbf_gain Index cbf_gain 20 4327 26 10689 21 4954 27 13066 22 5700 28 16183 23 6551 29 21291 24 7649 30 32832 25 8977 31 reserved Table 3.90 — Representation table for differential fixed codebook gain Scale factor: 2^13 Index cbf_gain_dif Index cbf_gain_dif 0 819 4 9544 1 3205 5 12763 2 5418 6 22118 3 7335 7 53248 3.5.7.2 Multi-pulse excitation generation tool 3.5.7.2.1 Tool description Figure 3.7 shows the block diagram of the Multi-Pulse Excitation Generation tool. For clarity, the indexing for each subframe is dropped. It is noted that the excitation generation process is repeated every subframe. The excitation signal is constructed from a periodic component (adaptive codebook vector) and non-periodic component (fixed codebook vector) scaled by their respective gains. Both the adaptive and the fixed codebook vectors are decoded from shape_delay, shape_positions and shape_signs. The gains are decoded from three types of indices, signal_mode, rms_index and gain_index. 60 © ISO/IEC 2005 — All rights reserved
Page 1 and 2:
INTERNATIONAL STANDARD ISO/IEC 1449
Page 3 and 4:
ISO/IEC 14496-3:2005(E) ⎯ Part 11
Page 5 and 6:
ISO/IEC 14496-3:2005(E) However, LA
Page 7 and 8:
ISO/IEC 14496-3:2005(E) Error Resil
Page 9 and 10:
ISO/IEC 14496-3:2005(E) highband, i
Page 11 and 12:
ISO/IEC 14496-3:2005(E) Additionall
Page 13 and 14:
ISO/IEC 14496-3:2005(E) Virtual cod
Page 15 and 16:
ISO/IEC 14496-3:2005(E) Content for
Page 17 and 18:
ISO/IEC 14496-3:2005(E) 1.3 Terms a
Page 19 and 20:
ISO/IEC 14496-3:2005(E) 1.3.45.�
Page 21 and 22:
ISO/IEC 14496-3:2005(E) 1.3.87.�
Page 23 and 24:
ISO/IEC 14496-3:2005(E) 1.3.135. Li
Page 25 and 26:
ISO/IEC 14496-3:2005(E) 1.3.177. Pi
Page 27 and 28:
ISO/IEC 14496-3:2005(E) 1.3.221. Si
Page 29 and 30:
ISO/IEC 14496-3:2005(E) 1.3.265. Ve
Page 31 and 32:
ISO/IEC 14496-3:2005(E) | OR >> Shi
Page 33 and 34:
ISO/IEC 14496-3:2005(E) for ( i = 0
Page 35 and 36:
ISO/IEC 14496-3:2005(E) 1.5.1.2 Des
Page 37 and 38:
ISO/IEC 14496-3:2005(E) available i
Page 39 and 40:
ISO/IEC 14496-3:2005(E) Sampling Fr
Page 41 and 42:
ISO/IEC 14496-3:2005(E) Table 1.4
Page 43 and 44:
ISO/IEC 14496-3:2005(E) 1.5.2.3 Lev
Page 45 and 46:
ISO/IEC 14496-3:2005(E) *1: The val
Page 47 and 48:
ISO/IEC 14496-3:2005(E) Table 1.10
Page 49 and 50:
ISO/IEC 14496-3:2005(E) Usage of th
Page 51 and 52:
ISO/IEC 14496-3:2005(E) } case 17:
Page 53 and 54:
ISO/IEC 14496-3:2005(E) Table 1.15
Page 55 and 56:
ISO/IEC 14496-3:2005(E) Table 1.16
Page 57 and 58:
ISO/IEC 14496-3:2005(E) AudioSpecif
Page 59 and 60:
ISO/IEC 14496-3:2005(E) 1.6.4.4.3 D
Page 61 and 62:
ISO/IEC 14496-3:2005(E) Table 1.22
Page 63 and 64:
ISO/IEC 14496-3:2005(E) MPEG-4 Audi
Page 65 and 66:
ISO/IEC 14496-3:2005(E) Table 1.25
Page 67 and 68:
1.7.3 Multiplex Layer ISO/IEC 14496
Page 69 and 70:
ISO/IEC 14496-3:2005(E) otherDataLe
Page 71 and 72:
ISO/IEC 14496-3:2005(E) epUsePrevio
Page 73 and 74:
ISO/IEC 14496-3:2005(E) useSameConf
Page 75 and 76:
ISO/IEC 14496-3:2005(E) allStreamsS
Page 77 and 78:
ISO/IEC 14496-3:2005(E) 1.8 Error p
Page 79 and 80:
ISO/IEC 14496-3:2005(E) The outline
Page 81 and 82:
ISO/IEC 14496-3:2005(E) } } fec_typ
Page 83 and 84:
ISO/IEC 14496-3:2005(E) 1.8.3 Gener
Page 85 and 86:
ISO/IEC 14496-3:2005(E) header_prot
Page 87 and 88:
ISO/IEC 14496-3:2005(E) DefineTrans
Page 89 and 90:
ISO/IEC 14496-3:2005(E) The number
Page 91 and 92:
ISO/IEC 14496-3:2005(E) ut ⊕ dt
Page 93 and 94:
ISO/IEC 14496-3:2005(E) changes cla
Page 95 and 96:
ISO/IEC 14496-3:2005(E) a 52 000101
Page 97 and 98:
ISO/IEC 14496-3:2005(E) W Figure 1.
Page 99 and 100:
ISO/IEC 14496-3:2005(E) In the case
Page 101 and 102:
ISO/IEC 14496-3:2005(E) set the out
Page 103 and 104:
ISO/IEC 14496-3:2005(E) 1.A.1 Intro
Page 105 and 106:
ISO/IEC 14496-3:2005(E) Table 1.A.5
Page 107 and 108:
ISO/IEC 14496-3:2005(E) 1.A.4.2 Aud
Page 109 and 110:
ISO/IEC 14496-3:2005(E) Class 3: 72
Page 111 and 112:
ISO/IEC 14496-3:2005(E) 1.B.1.3.3 R
Page 113 and 114:
ISO/IEC 14496-3:2005(E) State0 Stat
Page 115 and 116:
ISO/IEC 14496-3:2005(E) 1.B.2.2.4.2
Page 117 and 118:
ISO/IEC 14496-3:2005(E) 1.B.3.2 Cha
Page 119 and 120:
ISO/IEC 14496-3:2005(E) The Table 1
Page 121 and 122:
ISO/IEC 14496-3:2005(E) 23 VUVc 0 5
Page 123 and 124:
ISO/IEC 14496-3:2005(E) 17 Pitchp 2
Page 125 and 126:
ISO/IEC 14496-3:2005(E) 53 LSP3c 4
Page 127 and 128:
ISO/IEC 14496-3:2005(E) 27 VX_gain2
Page 129 and 130:
ISO/IEC 14496-3:2005(E) 1.B.3.4.1 P
Page 131 and 132:
ISO/IEC 14496-3:2005(E) 1.B.3.4.1.5
Page 133 and 134:
ISO/IEC 14496-3:2005(E) NTT Mobile
Page 135 and 136:
ISO/IEC 14496-3:2005(E) Subpart 2:
Page 137 and 138:
ISO/IEC 14496-3:2005(E) alPduPayloa
Page 139 and 140:
ISO/IEC 14496-3:2005(E) } Table 2.1
Page 141 and 142:
ISO/IEC 14496-3:2005(E) Table 2.19
Page 143 and 144:
ISO/IEC 14496-3:2005(E) } if (VUV !
Page 145 and 146:
ISO/IEC 14496-3:2005(E) } } } else
Page 147 and 148:
ISO/IEC 14496-3:2005(E) } } LSP5, 6
Page 149 and 150:
ISO/IEC 14496-3:2005(E) } } Table 2
Page 151 and 152:
ISO/IEC 14496-3:2005(E) } LSP3, 4;
Page 153 and 154:
ISO/IEC 14496-3:2005(E) Table 2.56
Page 155 and 156:
ISO/IEC 14496-3:2005(E) Speed contr
Page 157 and 158:
ISO/IEC 14496-3:2005(E) 2.5.2 LSP d
Page 159 and 160:
ISO/IEC 14496-3:2005(E) In the firs
Page 161 and 162:
ISO/IEC 14496-3:2005(E) After the L
Page 163 and 164:
ISO/IEC 14496-3:2005(E) pch_ mod :
Page 165 and 166:
ISO/IEC 14496-3:2005(E) dimension 4
Page 167 and 168:
ISO/IEC 14496-3:2005(E) 2.5.4.2 Def
Page 169 and 170:
ISO/IEC 14496-3:2005(E) Let us deno
Page 171 and 172:
ISO/IEC 14496-3:2005(E) energy be e
Page 173 and 174:
ISO/IEC 14496-3:2005(E) An efficien
Page 175 and 176:
ISO/IEC 14496-3:2005(E) st : offset
Page 177 and 178:
ISO/IEC 14496-3:2005(E) ⎧ am2[] i
Page 179 and 180:
ISO/IEC 14496-3:2005(E) When the ra
Page 181 and 182:
ISO/IEC 14496-3:2005(E) for (i = 0;
Page 183 and 184:
ISO/IEC 14496-3:2005(E) for (i = 0;
Page 185 and 186:
ISO/IEC 14496-3:2005(E) For the low
Page 187 and 188:
ISO/IEC 14496-3:2005(E) For normal
Page 189 and 190:
ISO/IEC 14496-3:2005(E) the "backgr
Page 191 and 192:
ISO/IEC 14496-3:2005(E) LSP index V
Page 193 and 194:
ISO/IEC 14496-3:2005(E) frames (VUV
Page 195 and 196:
ISO/IEC 14496-3:2005(E) 2.A.2.2 Nor
Page 197 and 198:
ISO/IEC 14496-3:2005(E) The quantiz
Page 199 and 200:
ISO/IEC 14496-3:2005(E) 2.A.3 Pitch
Page 201 and 202:
ISO/IEC 14496-3:2005(E) } if (!st1)
Page 203 and 204:
ISO/IEC 14496-3:2005(E) 2.A.6.2 Enc
Page 205 and 206:
ISO/IEC 14496-3:2005(E) Example: TH
Page 207 and 208:
ISO/IEC 14496-3:2005(E) 2.A.9 Varia
Page 209 and 210:
ISO/IEC 14496-3:2005(E) Background
Page 211 and 212:
ISO/IEC 14496-3:2005(E) BgnIntvl: b
Page 213 and 214:
ISO/IEC 14496-3:2005(E) Table 2.A.6
Page 215 and 216:
ISO/IEC 14496-3:2005(E) 2.B.1 Postf
Page 217 and 218:
ISO/IEC 14496-3:2005(E) 2.B.1.3.2 U
Page 219 and 220:
ISO/IEC 14496-3:2005(E) 2.C.1 Rando
Page 221 and 222:
ISO/IEC 14496-3:2005(E) 10 /* bits
Page 223 and 224:
ISO/IEC 14496-3:2005(E) Class VI(2
Page 225 and 226:
ISO/IEC 14496-3:2005(E) 2.D.3.1.4 R
Page 227 and 228:
ISO/IEC 14496-3:2005(E) Table 2.E.3
Page 229 and 230:
ISO/IEC 14496-3:2005(E) 3069 3202 4
Page 231 and 232:
ISO/IEC 14496-3:2005(E) 15415 13359
Page 233 and 234:
ISO/IEC 14496-3:2005(E) 2.E.3 CbAm4
Page 235 and 236:
ISO/IEC 14496-3:2005(E) 74 3323 -17
Page 237 and 238:
ISO/IEC 14496-3:2005(E) 50 -2741 26
Page 239 and 240:
ISO/IEC 14496-3:2005(E) 164 -9438 9
Page 241 and 242:
ISO/IEC 14496-3:2005(E) 278 -648 -5
Page 243 and 244:
ISO/IEC 14496-3:2005(E) 392 -1133 7
Page 245 and 246:
ISO/IEC 14496-3:2005(E) 506 2653 14
Page 247 and 248:
ISO/IEC 14496-3:2005(E) 620 2344 -2
Page 249 and 250:
ISO/IEC 14496-3:2005(E) 734 -12721
Page 251 and 252:
ISO/IEC 14496-3:2005(E) 848 654 705
Page 253 and 254:
ISO/IEC 14496-3:2005(E) 962 369 -22
Page 255 and 256:
ISO/IEC 14496-3:2005(E) 43 -906 864
Page 257 and 258:
ISO/IEC 14496-3:2005(E) 157 -646 53
Page 259 and 260:
ISO/IEC 14496-3:2005(E) 271 20207 -
Page 261 and 262:
ISO/IEC 14496-3:2005(E) 385 70 1473
Page 263 and 264:
ISO/IEC 14496-3:2005(E) 499 -4565 -
Page 265 and 266:
ISO/IEC 14496-3:2005(E) index (VX_
Page 267 and 268:
ISO/IEC 14496-3:2005(E) 0 0 -6233 0
Page 269 and 270:
ISO/IEC 14496-3:2005(E) 10186 -2828
Page 271 and 272:
ISO/IEC 14496-3:2005(E) -266 3377 2
Page 273 and 274:
ISO/IEC 14496-3:2005(E) 0 320 -1205
Page 275 and 276:
ISO/IEC 14496-3:2005(E) 16349 -4636
Page 277 and 278:
ISO/IEC 14496-3:2005(E) 2.E.6 CbLsp
Page 279 and 280:
ISO/IEC 14496-3:2005(E) 62 744 629
Page 281 and 282:
ISO/IEC 14496-3:2005(E) 2.E.7 CbLsp
Page 283 and 284:
ISO/IEC 14496-3:2005(E) 86 201 -729
Page 285 and 286:
ISO/IEC 14496-3:2005(E) 200 318 -99
Page 287 and 288:
Page 289 and 290:
ISO/IEC 14496-3:2005(E) Table 3.5
Page 291 and 292:
ISO/IEC 14496-3:2005(E) Table 3.10
Page 293 and 294: ISO/IEC 14496-3:2005(E) Table 3.14
Page 295 and 296: ISO/IEC 14496-3:2005(E) 3.3.1.2.2 E
Page 297 and 298: ISO/IEC 14496-3:2005(E) Transmissio
Page 301 and 302: ISO/IEC 14496-3:2005(E) 3.3.2.2.1.2
Page 311 and 312: ISO/IEC 14496-3:2005(E) nrof_subfra
Page 317 and 318: ISO/IEC 14496-3:2005(E) indicate au
Page 321 and 322: ISO/IEC 14496-3:2005(E) 3.5.6.1.2 D
Page 323 and 324: ISO/IEC 14496-3:2005(E) lsp_current
Page 325 and 326: ISO/IEC 14496-3:2005(E) The decoded
Page 329 and 330: ISO/IEC 14496-3:2005(E) for (i = 0;
Page 331 and 332: ISO/IEC 14496-3:2005(E) 0 5 1 5 Tab
Page 333 and 334: ISO/IEC 14496-3:2005(E) lsp_current
Page 337 and 338: ISO/IEC 14496-3:2005(E) The LSPs at
Page 341 and 342: ISO/IEC 14496-3:2005(E) shape_delay
Page 343: ISO/IEC 14496-3:2005(E) for (n = 0;
Page 347 and 348: ISO/IEC 14496-3:2005(E) Configurati
Page 351 and 352: ISO/IEC 14496-3:2005(E) for (n = 0;
Page 353 and 354: ISO/IEC 14496-3:2005(E) indices sha
Page 357 and 358: ISO/IEC 14496-3:2005(E) 3.5.7.4 Ban
Page 361 and 362: ISO/IEC 14496-3:2005(E) for (i = nu
Page 365 and 366: ISO/IEC 14496-3:2005(E) 3.5.9.2 Def
Page 367 and 368: ISO/IEC 14496-3:2005(E) Output PP_s
Page 369 and 370: ISO/IEC 14496-3:2005(E) 3.5.9.3.3.7
Page 371 and 372: ISO/IEC 14496-3:2005(E) } 3.5.9.3.3
Page 373 and 374: ISO/IEC 14496-3:2005(E) synth_signa
Page 375 and 376: ISO/IEC 14496-3:2005(E) Annex 3.B (
Page 377 and 378: ISO/IEC 14496-3:2005(E) { } Hw(n) =
Page 379 and 380: ISO/IEC 14496-3:2005(E) first_order
Page 381 and 382: ISO/IEC 14496-3:2005(E) { } dim−1
Page 387 and 388: ISO/IEC 14496-3:2005(E) lpc_indices
Page 389 and 390: ISO/IEC 14496-3:2005(E) interpolati
Page 391 and 392: ISO/IEC 14496-3:2005(E) 3.B.9.1 Reg
Page 393 and 394: ISO/IEC 14496-3:2005(E) } tmp = tmp
Page 395 and 396:
ISO/IEC 14496-3:2005(E) max = 0; fo
Page 397 and 398:
ISO/IEC 14496-3:2005(E) if (first s
Page 399 and 400:
ISO/IEC 14496-3:2005(E) rms_index:
Page 401 and 402:
ISO/IEC 14496-3:2005(E) N p ∏( 1
Page 403 and 404:
ISO/IEC 14496-3:2005(E) 3.B.9.4 Mul
Page 405 and 406:
ISO/IEC 14496-3:2005(E) g k = N −
Page 407 and 408:
ISO/IEC 14496-3:2005(E) where h is
Page 409 and 410:
ISO/IEC 14496-3:2005(E) VAD_flag Th
Page 411 and 412:
ISO/IEC 14496-3:2005(E) Annex 3.C (
Page 413 and 414:
ISO/IEC 14496-3:2005(E) 55 6765 106
Page 415 and 416:
ISO/IEC 14496-3:2005(E) 63 6606 193
Page 417 and 418:
ISO/IEC 14496-3:2005(E) Table 3.C.8
Page 419 and 420:
ISO/IEC 14496-3:2005(E) 3.C.2 LSP V
Page 421 and 422:
ISO/IEC 14496-3:2005(E) 31 -2136 -1
Page 423 and 424:
ISO/IEC 14496-3:2005(E) 5 -1708 -47
Page 425 and 426:
ISO/IEC 14496-3:2005(E) 51 2408 823
Page 427 and 428:
ISO/IEC 14496-3:2005(E) 51 -1943 11
Page 429 and 430:
ISO/IEC 14496-3:2005(E) 0 6381 -765
Page 431 and 432:
ISO/IEC 14496-3:2005(E) 94 4363 132
Page 433 and 434:
ISO/IEC 14496-3:2005(E) 76 4371 523
Page 435 and 436:
ISO/IEC 14496-3:2005(E) 61 48 62 77
Page 437 and 438:
ISO/IEC 14496-3:2005(E) 52 11537 12
Page 439 and 440:
ISO/IEC 14496-3:2005(E) 12 29 -24 -
Page 441 and 442:
ISO/IEC 14496-3:2005(E) 59 477 65 4
Page 443 and 444:
ISO/IEC 14496-3:2005(E) 19 23026 61
Page 445 and 446:
ISO/IEC 14496-3:2005(E) 93 14216 24
Page 447 and 448:
ISO/IEC 14496-3:2005(E) 15 -0.01694
Page 449 and 450:
ISO/IEC 14496-3:2005(E) } } where d
Page 451 and 452:
Contents for Subpart 4 ISO/IEC 1449
Page 453 and 454:
Page 455 and 456:
Legend: data control coded audio st
Page 457 and 458:
• The scaled, inversely quantized
Page 459 and 460:
ISO/IEC 14496-3:2005(E) The filterb
Page 461 and 462:
The input of the RVLC tool is: •
Page 463 and 464:
} side_element_is_cpe[i]; 1 bslbf s
Page 465 and 466:
} } } } } if (common_window) { ltp_
Page 467 and 468:
} if (window_sequence == ONLY_LONG_
Page 469 and 470:
} || (tvq_layer_present && tvq_mono
Page 471 and 472:
} single_channel_element(); channel
Page 473 and 474:
} ISO/IEC 14496-3:2005(E) for (idiv
Page 475 and 476:
} ISO/IEC 14496-3:2005(E) index_gai
Page 477 and 478:
* bsac_lstep_element(frm, lay) shou
Page 479 and 480:
{ } layer_cband_si(layer); layer_sf
Page 481 and 482:
} } g = layer_group[nlay]; start_in
Page 483 and 484:
} } sect_len += sect_len_incr; sect
Page 485 and 486:
} } ISO/IEC 14496-3:2005(E) rvlc_es
Page 487 and 488:
} ISO/IEC 14496-3:2005(E) for (i=0;
Page 489 and 490:
{ num_sbr_bits = 0; ISO/IEC 14496-3
Page 491 and 492:
if (bs_add_harmonic_flag[0]) 1 sbr_
Page 493 and 494:
} } bs_fill_bits; num_bits _left IS
Page 495 and 496:
if (bs_coupling) { if (ch) { if (bs
Page 497 and 498:
4.5 Overall data structure 4.5.1 De
Page 499 and 500:
ISO/IEC 14496-3:2005(E) An MPEG-4 d
Page 501 and 502:
ISO/IEC 14496-3:2005(E) coupling_ch
Page 503 and 504:
4.5.2.2 Payloads for the audio obje
Page 505 and 506:
Layer N Narrow Band CELP mono TwinV
Page 507 and 508:
ISO/IEC 14496-3:2005(E) 4.5.2.2.5.1
Page 509 and 510:
B itstream D em ultiplex SIAQ (One
Page 511 and 512:
ISO/IEC 14496-3:2005(E) Table 4.76
Page 513 and 514:
Bitstream Demultiplex SIAQ (One or
Page 515 and 516:
Bitstream Demultiplex Inverse Quant
Page 517 and 518:
Table 4.78 - Stereo-stereo layer co
Page 519 and 520:
4.5.2.3.2 Decoding process Decoding
Page 521 and 522:
ISO/IEC 14496-3:2005(E) actually us
Page 523 and 524:
4.5.2.3.6 Output word length ISO/IE
Page 525 and 526:
ISO/IEC 14496-3:2005(E) index_lsp0
Page 527 and 528:
ISO/IEC 14496-3:2005(E) N_CH 1 2 1
Page 529 and 530:
Payload (bsac_payload) Spilting Set
Page 531 and 532:
ISO/IEC 14496-3:2005(E) base_scf_mo
Page 533 and 534:
ISO/IEC 14496-3:2005(E) end_index[g
Page 535 and 536:
ISO/IEC 14496-3:2005(E) cband_si is
Page 537 and 538:
4.5.2.6.2.2.13 Reconstruction of th
Page 539 and 540:
for (g = 0; g < num_window_groups;
Page 541 and 542:
} layer_bit_offset[layer] = bit_off
Page 543 and 544:
ISO/IEC 14496-3:2005(E) • p1: 16-
Page 545 and 546:
4.5.2.7 Dynamic Range Control (DRC)
Page 547 and 548:
#define FRAME_SIZE 1024 /* Change t
Page 549 and 550:
else factor = 2^(ctrl2*dyn_rng_ctl[
Page 551 and 552:
4.5.2.8 Payloads for the audio obje
Page 553 and 554:
3 reserved ISO/IEC 14496-3:2005(E)
Page 555 and 556:
CRC header flag header flag header
Page 557 and 558:
fill_nibble Four bit field for fill
Page 559 and 560:
4.5.4 Tables Table 4.107 - Maximum
Page 561 and 562:
ISO/IEC 14496-3:2005(E) Table 4.112
Page 563 and 564:
ISO/IEC 14496-3:2005(E) Table 4.115
Page 565 and 566:
ISO/IEC 14496-3:2005(E) Table 4.119
Page 567 and 568:
Table 4.123 - scalefactor bands for
Page 569 and 570:
SCE / LFE / mono layer Table 4.127
Page 571 and 572:
SCE / LFE / mono layer CPE, common_
Page 573 and 574:
4.5.5 Figures spectral coefficients
Page 575 and 576:
} 4.6.2 Scalefactors (subclause sim
Page 577 and 578:
} 4.6.3 Noiseless coding (subclause
Page 579 and 580:
INTENSITY_HCB 15 ESC_FLAG 16 ISO/IE
Page 581 and 582:
} } else x_quant[g][win][sfb][bin]
Page 583 and 584:
ISO/IEC 14496-3:2005(E) 1 0 4 1 Tab
Page 585 and 586:
ISO/IEC 14496-3:2005(E) sign_is_cod
Page 587 and 588:
ISO/IEC 14496-3:2005(E) acode_noise
Page 589 and 590:
4.6.4.4.2 Definitions ISO/IEC 14496
Page 591 and 592:
ISO/IEC 14496-3:2005(E) layer_start
Page 593 and 594:
ISO/IEC 14496-3:2005(E) index1[] da
Page 595 and 596:
ismp: indicates sample number in th
Page 597 and 598:
3 2 1 Layer No. Base layer 0 Freque
Page 599 and 600:
ISO/IEC 14496-3:2005(E) The referen
Page 601 and 602:
4.6.8.1.2 Definitions ms_mask_prese
Page 603 and 604:
ISO/IEC 14496-3:2005(E) In case of
Page 605 and 606:
ISO/IEC 14496-3:2005(E) •Second,
Page 607 and 608:
1 2^(1/4) 1.50 2 2^(1/2) 3.00 3 2^1
Page 609 and 610:
tns_ar_filter( spectrum[], size, in
Page 611 and 612:
ISO/IEC 14496-3:2005(E) If TNS is u
Page 613 and 614:
SUB_STEP step size of mu-law quanti
Page 615 and 616:
} pitch_i = pow_i *bl_i /256.; bfre
Page 617 and 618:
4.6.10.3.5 Decoding of LPC spectrum
Page 619 and 620:
for (i_ch = 0; i_ch < N_CH; i_ch++)
Page 621 and 622:
Short block: N_FR 128/120 MDCT bloc
Page 623 and 624:
EIGHT_SHORT_SEQUENCE from EIGHT_SHO
Page 625 and 626:
ISO/IEC 14496-3:2005(E) The LONG_ST
Page 627 and 628:
ISO/IEC 14496-3:2005(E) Due to the
Page 629 and 630:
(3) ( ) FMD j WB , if ONLY_LONG_SEQ
Page 631 and 632:
( ) ( ) V j+ 256 = T j+ 256 0 ≤ j
Page 633 and 634:
3 24 19 152 4 32 20 160 5 40 21 168
Page 635 and 636:
} /* Decode noise energies for this
Page 637 and 638:
ISO/IEC 14496-3:2005(E) Length 2 5
Page 639 and 640:
ISO/IEC 14496-3:2005(E) current lay
Page 641 and 642:
ISO/IEC 14496-3:2005(E) RVLC enable
Page 643 and 644:
22 11 925 49 19 236736 23 12 1848 5
Page 645 and 646:
ISO/IEC 14496-3:2005(E) Segment wid
Page 647 and 648:
4.6.16.3.6 Figures Table 4.151 - Va
Page 649 and 650:
4.6.17 Low delay codec 4.6.17.1 Int
Page 651 and 652:
The low-overlap window is defined b
Page 653 and 654:
frequency band delimiter, expressed
Page 655 and 656:
ISO/IEC 14496-3:2005(E) RATE= 2 A c
Page 657 and 658:
ISO/IEC 14496-3:2005(E) defined by
Page 659 and 660:
True dk = 1 numBands = 2 * INT( (k2
Page 661 and 662:
4.6.18.3.2.2 Derived frequency band
Page 663 and 664:
Output variables: N L = nrLim for(k
Page 665 and 666:
⎧ ⎛numTimeSlots ⎞ ⎪NINT ⎜
Page 667 and 668:
and where ( , ) ISO/IEC 14496-3:200
Page 669 and 670:
ISO/IEC 14496-3:2005(E) If the ster
Page 671 and 672:
ISO/IEC 14496-3:2005(E) • Extract
Page 673 and 674:
for( n = 1279; n >= 128; n--) { v[n
Page 675 and 676:
4.6.18.5 SBR tool overview ISO/IEC
Page 677 and 678:
AAC Core Decoder Analysis QMF Bank
Page 679 and 680:
4.6.18.6 HF generation ISO/IEC 1449
Page 681 and 682:
False Start msb = k0 usb = kx numPa
Page 683 and 684:
and where lA is defined according t
Page 685 and 686:
where ( ) ε + ( k+ 1) −1−k ( i
Page 687 and 688:
The noise, based on the noise table
Page 689 and 690:
4.6.18.8.2 Low power SBR tool filte
Page 691 and 692:
for(n = 319; n >= 32; n--) { x[n] =
Page 693 and 694:
for( n = 639; n >= 64; n--) { v[n]
Page 695 and 696:
False k%2 == 0 && ref[k] < 0 True s
Page 697 and 698:
False F Group [i][l] = k grouping =
Page 699 and 700:
where α ( m) ( degPatched( ) degPa
Page 701 and 702:
Annex 4.A (normative) Normative Tab
Page 703 and 704:
ISO/IEC 14496-3:2005(E) 33 9 1e6 74
Page 705 and 706:
ISO/IEC 14496-3:2005(E) 6 9 1ef 47
Page 707 and 708:
ISO/IEC 14496-3:2005(E) 26 9 1f7 67
Page 709 and 710:
ISO/IEC 14496-3:2005(E) 16 7 72 101
Page 711 and 712:
ISO/IEC 14496-3:2005(E) 38 10 3f1 1
Page 713 and 714:
ISO/IEC 14496-3:2005(E) 60 9 196 20
Page 715 and 716:
2 0.0013558207534965 130 0.72655973
Page 717 and 718:
116 0.6112828224083939 244 0.999977
Page 719 and 720:
ISO/IEC 14496-3:2005(E) 25 0 0.1082
Page 721 and 722:
Table 4.A.18 - LSP codebook for sca
Page 723 and 724:
12 1.9026 2.041 2.1964 2.3556 2.505
Page 725 and 726:
ISO/IEC 14496-3:2005(E) 25 0 -71 51
Page 727 and 728:
ISO/IEC 14496-3:2005(E) 11 0 -92.3
Page 729 and 730:
ISO/IEC 14496-3:2005(E) Table 4.A.2
Page 731 and 732:
24 99.4 -210.4 -40 -58.5 ISO/IEC 14
Page 733 and 734:
ISO/IEC 14496-3:2005(E) 8 0 -959.2
Page 735 and 736:
ISO/IEC 14496-3:2005(E) 12 -371.9 5
Page 737 and 738:
ISO/IEC 14496-3:2005(E) 31 0.01548
Page 739 and 740:
4.A.5 Tables for ER BSAC Table 4.A.
Page 741 and 742:
ISO/IEC 14496-3:2005(E) Table 4.A.3
Page 743 and 744:
Table 4.A.49 - cband_si arithmetic
Page 745 and 746:
Table 4.A.58 - BSAC probability tab
Page 747 and 748:
MSB-2 ISO/IEC 14496-3:2005(E) 2800,
Page 749 and 750:
Table 4.A.76 ISO/IEC 14496-3:2005(E
Page 751 and 752:
49 0x0000000C 0x00000FFB 110 0x0000
Page 753 and 754:
Table 4.A.79 - t_huffman_env_bal_1_
Page 755 and 756:
Table 4.A.81 - t_huffman_env_3_0dB
Page 757 and 758:
Table 4.A.83 - t_huffman_env_bal_3_
Page 759 and 760:
Table 4.A.86 - t_huffman_noise_bal_
Page 761 and 762:
ISO/IEC 14496-3:2005(E) 47 0.000294
Page 763 and 764:
ISO/IEC 14496-3:2005(E) 151 0.04514
Page 765 and 766:
i re, noise i V ⎡⎣ φ (), i φ
Page 767 and 768:
ISO/IEC 14496-3:2005(E) 100 -0.9240
Page 769 and 770:
ISO/IEC 14496-3:2005(E) 204 0.19513
Page 771 and 772:
T/F Psychoacoustic Model Long-Term
Page 773 and 774:
ISO/IEC 14496-3:2005(E) • The log
Page 775 and 776:
Weighted VQ 4.B.14 Spectrum normali
Page 777 and 778:
env[ isf ][ ib] = env _ tmp[ isf ][
Page 779 and 780:
qgain = AMP_MAX * (exp10(g_temp * l
Page 781 and 782:
Figure 4.B.6 - Core + mono GA + ste
Page 783 and 784:
ISO/IEC 14496-3:2005(E) In order to
Page 785 and 786:
ISO/IEC 14496-3:2005(E) 4.B.17.6.1.
Page 787 and 788:
BSAC data LLi_0 LLi_1 ... LLi_M Lay
Page 789 and 790:
Shift input buffer x For n = 639 do
Page 791 and 792:
E ( k k , l) ε + RATE⋅ t ( l+ 1)
Page 793 and 794:
E Delta ( kl , ) ⎧ ⎧0 ≤ l < L
Page 795 and 796:
Page 797 and 798:
ISO/IEC 14496-3:2005(E) 5.E.1 Intro
Page 799 and 800:
5.4 Symbols and abbreviations 5.4.1
Page 801 and 802:
ISO/IEC 14496-3:2005(E) SAOL and SA
Page 803 and 804:
ISO/IEC 14496-3:2005(E) to a instru
Page 805 and 806:
4. sample: The samples may be acces
Page 807 and 808:
ISO/IEC 14496-3:2005(E) 5.7.3.2 Bit
Page 809 and 810:
} send(b; ;bus1); sequence(b,a); ro
Page 811 and 812:
ISO/IEC 14496-3:2005(E) 10. Each ac
Page 813 and 814:
ISO/IEC 14496-3:2005(E) Normative l
Page 815 and 816:
5.8.4 Orchestra -> -> ISO/IEC
Page 817 and 818:
ISO/IEC 14496-3:2005(E) The only no
Page 819 and 820:
5.8.5.4 Route statement -> route (
Page 821 and 822:
ISO/IEC 14496-3:2005(E) In the case
Page 823 and 824:
5.8.6 Instrument definition 5.8.6.1
Page 825 and 826:
ISO/IEC 14496-3:2005(E) the value o
Page 827 and 828:
5.8.6.6 Block of code statements 5.
Page 829 and 830:
ISO/IEC 14496-3:2005(E) The example
Page 831 and 832:
ISO/IEC 14496-3:2005(E) standard na
Page 833 and 834:
ISO/IEC 14496-3:2005(E) The express
Page 835 and 836:
ISO/IEC 14496-3:2005(E) An identifi
Page 837 and 838:
ISO/IEC 14496-3:2005(E) this subcla
Page 839 and 840:
a = inc[0](); b = inc[0](); ISO/IEC
Page 841 and 842:
ISO/IEC 14496-3:2005(E) The parenth
Page 843 and 844:
} output(a2); ISO/IEC 14496-3:2005(
Page 845 and 846:
5.8.6.8.12 channel ivar channel ISO
Page 847 and 848:
ISO/IEC 14496-3:2005(E) The maxBack
Page 849 and 850:
5.8.7.5 Opcode variable declaration
Page 851 and 852:
ISO/IEC 14496-3:2005(E) The rate of
Page 853 and 854:
ISO/IEC 14496-3:2005(E) The map lis
Page 855 and 856:
x = ...; y = rms(x); // #1 y = rms(
Page 857 and 858:
ISO/IEC 14496-3:2005(E) The ampdb c
Page 859 and 860:
5.9.4.18 ceil opcode ceil(xsig x) T
Page 861 and 862:
The pchoct core opcode converts oct
Page 863 and 864:
It is a run-time error if x is not
Page 865 and 866:
ISO/IEC 14496-3:2005(E) The tablere
Page 867 and 868:
5.9.6.15 koscil kopcode koscil(tabl
Page 869 and 870:
ISO/IEC 14496-3:2005(E) point, and
Page 871 and 872:
ISO/IEC 14496-3:2005(E) The return
Page 873 and 874:
The output value from the opcode is
Page 875 and 876:
5.9.8.9 kexprand kopcode kexprand(k
Page 877 and 878:
2 −( mean− x) /( 2var) e p ( x)
Page 879 and 880:
A runtime error is produced if this
Page 881 and 882:
ISO/IEC 14496-3:2005(E) The return
Page 883 and 884:
ISO/IEC 14496-3:2005(E) and the res
Page 885 and 886:
ISO/IEC 14496-3:2005(E) At the firs
Page 887 and 888:
ISO/IEC 14496-3:2005(E) 1. The samp
Page 889 and 890:
5.9.12.3 downsamp specialop downsam
Page 891 and 892:
ISO/IEC 14496-3:2005(E) sample x -
Page 893 and 894:
ISO/IEC 14496-3:2005(E) not strictl
Page 895 and 896:
5.10.4 Random t1 table(random, size
Page 897 and 898:
- x1 is not 0, - the x-values are n
Page 899 and 900:
ISO/IEC 14496-3:2005(E) If type = 2
Page 901 and 902:
ISO/IEC 14496-3:2005(E) points of t
Page 903 and 904:
ISO/IEC 14496-3:2005(E) The second
Page 905 and 906:
ISO/IEC 14496-3:2005(E) - If the el
Page 907 and 908:
5.13.3.2 Object type 4 ISO/IEC 1449
Page 909 and 910:
5.14.3.2.6 Aftertouch touch channel
Page 911 and 912:
5.14.3.3 Standard MIDI Files ISO/IE
Page 913 and 914:
NOTE ISO/IEC 14496-3:2005(E) The ph
Page 915 and 916:
5.A.1 Introduction Annex 5.A (norma
Page 917 and 918:
ISO/IEC 14496-3:2005(E) © ISO/IEC
Page 919 and 920:
ISO/IEC 14496-3:2005(E) incorporate
Page 921 and 922:
5.C.1 Introduction Annex 5.C (infor
Page 923 and 924:
* */ This is a grammar for SAOL, wr
Page 925 and 926:
| INTERP INTGR SEM ; routedef : ROU
Page 927 and 928:
| expr | /* null */ ; /* this is us
Page 929 and 930:
D 1 LW LW 1 = ∑ − 2 ( LW) { x (
Page 931 and 932:
5.E.1 Introduction Annex 5.E (infor
Page 933 and 934:
} asig a; table sine(harm,2048,1);
Page 935 and 936:
global { srate 24000; krate 1000; }
Page 937 and 938:
channel = live MIDI event channel +
Page 939 and 940:
Alphabetical Index to Subpart 5 of
Page 941 and 942:
kopcode tag........................
Page 943 and 944:
template declaration ..............
Page 945 and 946:
Page 947 and 948:
ISO/IEC 14496-3:2005(E) } } } Dur_E
Page 949 and 950:
ISO/IEC 14496-3:2005(E) Table 6.3
Page 951 and 952:
ISO/IEC 14496-3:2005(E) 6.6.2 Inter
Page 953 and 954:
ISO/IEC 14496-3:2005(E) 6.A.1 Gener
Page 955 and 956:
Page 957 and 958:
ISO/IEC 14496-3:2005(E) 7.3.1.1 Par
Page 959 and 960:
ISO/IEC 14496-3:2005(E) 7.3.2 Bitst
Page 961 and 962:
ISO/IEC 14496-3:2005(E) Table 7.17
Page 963 and 964:
ISO/IEC 14496-3:2005(E) Table 7.23
Page 965 and 966:
ISO/IEC 14496-3:2005(E) Table 7.29
Page 967 and 968:
ISO/IEC 14496-3:2005(E) } } linePre
Page 969 and 970:
ISO/IEC 14496-3:2005(E) Table 7.42
Page 971 and 972:
ISO/IEC 14496-3:2005(E) } } } ILFre
Page 973 and 974:
ISO/IEC 14496-3:2005(E) 1110 -0.150
Page 975 and 976:
ISO/IEC 14496-3:2005(E) Table 7.53
Page 977 and 978:
ISO/IEC 14496-3:2005(E) int SDCDeco
Page 979 and 980:
ISO/IEC 14496-3:2005(E) harmFreqInd
Page 981 and 982:
ISO/IEC 14496-3:2005(E) atkEnhbits
Page 983 and 984:
ISO/IEC 14496-3:2005(E) 7.5.1.1.3.1
Page 985 and 986:
ISO/IEC 14496-3:2005(E) where hFreq
Page 987 and 988:
ISO/IEC 14496-3:2005(E) else { ILAm
Page 989 and 990:
ISO/IEC 14496-3:2005(E) float noise
Page 991 and 992:
ISO/IEC 14496-3:2005(E) } linePred[
Page 993 and 994:
ISO/IEC 14496-3:2005(E) x[n] = x(t)
Page 995 and 996:
ISO/IEC 14496-3:2005(E) Parameters
Page 997 and 998:
ISO/IEC 14496-3:2005(E) noiseEnv[n]
Page 999 and 1000:
ISO/IEC 14496-3:2005(E) } t += h[j-
Page 1001 and 1002:
ISO/IEC 14496-3:2005(E) Audio Encod
Page 1003 and 1004:
ISO/IEC 14496-3:2005(E) enhanced by
Page 1005 and 1006:
ISO/IEC 14496-3:2005(E) 7.A.2.1.2.2
Page 1007 and 1008:
ISO/IEC 14496-3:2005(E) 7.A.2.2.1 H
Page 1009 and 1010:
ISO/IEC 14496-3:2005(E) } } PutBits
Page 1011 and 1012:
ISO/IEC 14496-3:2005(E) 249 ∑ frm
Page 1013 and 1014:
Page 1015 and 1016:
ISO/IEC 14496-3:2005(E) 8.2.3 Audio
Page 1017 and 1018:
8.3.6 Definitions S Number of sampl
Page 1019 and 1020:
} ISO/IEC 14496-3:2005(E) t_loc[sf]
Page 1021 and 1022:
} ISO/IEC 14496-3:2005(E) s_delta_c
Page 1023 and 1024:
} ISO/IEC 14496-3:2005(E) for (e=0
Page 1025 and 1026:
8.5 Semantics 8.5.1 SSCSpecificConf
Page 1027 and 1028:
ISO/IEC 14496-3:2005(E) freq_granul
Page 1029 and 1030:
ISO/IEC 14496-3:2005(E) π where tp
Page 1031 and 1032:
ISO/IEC 14496-3:2005(E) s_delta_bir
Page 1033 and 1034:
ISO/IEC 14496-3:2005(E) The default
Page 1035 and 1036:
Table 8.30 — Description of ps_ex
Page 1037 and 1038:
ISO/IEC 14496-3:2005(E) no previous
Page 1039 and 1040:
Table 8.32 — tmax for all possibl
Page 1041 and 1042:
sf == 0: s_nrof_sin [0] s_nrof_cont
Page 1043 and 1044:
f q [ K + 1][ ch][ p] = 0. 5⋅ϖ [
Page 1045 and 1046:
Birth Death Continuation no transie
Page 1047 and 1048:
w s ⎧1 ⎛ + ⎞ ⎪ − 1 2n 1 c
Page 1049 and 1050:
8.6.3.1 Noise generation ISO/IEC 14
Page 1051 and 1052:
z Q [ i] = z[ 2i −1] ⎡ ⎡n _ n
Page 1053 and 1054:
ISO/IEC 14496-3:2005(E) the LARs (s
Page 1055 and 1056:
ISO/IEC 14496-3:2005(E) Table 8.36
Page 1057 and 1058:
M H ( ) M H H H 0 ω ( 1 ω ( 2 ω
Page 1059 and 1060:
M H ( ) M 0 ω H1 ( ω) H ( 2 ω M
Page 1061 and 1062:
ISO/IEC 14496-3:2005(E) same stereo
Page 1063 and 1064:
For the filter coefficient vector a
Page 1065 and 1066:
Table 8.41 — Delay length vector
Page 1067 and 1068:
ISO/IEC 14496-3:2005(E) Table 8.46
Page 1069 and 1070:
8.6.4.6.2.1 Mixing procedure Ra In
Page 1071 and 1072:
Finally, in order to get to ( k n )
Page 1073 and 1074:
H H H H 11 12 21 22 ( k, n) = H ( k
Page 1075 and 1076:
For parametric stereo no special ac
Page 1077 and 1078:
ISO/IEC 14496-3:2005(E) complex sam
Page 1079 and 1080:
Table 8.B.2 — huff_sampba ISO/IEC
Page 1081 and 1082:
Table 8.B.9 — huff_sfreqba index
Page 1083 and 1084:
896 00101011 2840 010100001 904 010
Page 1085 and 1086:
1808 101001000 3752 101111110100101
Page 1087 and 1088:
744 100000101 2688 110001011110000
Page 1089 and 1090:
1656 00001101000 3600 0100100001000
Page 1091 and 1092:
592 110000011 2536 10000111 600 111
Page 1093 and 1094:
ISO/IEC 14496-3:2005(E) 1504 010111
Page 1095 and 1096:
-292 100010111010110011 224 1000000
Page 1097 and 1098:
Table 8.B.16 — huff_nrofbirths IS
Page 1099 and 1100:
Table 8.B.20 — huff_ipd_df and hu
Page 1101 and 1102:
ISO/IEC 14496-3:2005(E) The monaura
Page 1103 and 1104:
• underlying sinusoids (see secti
Page 1105 and 1106:
len = length(x); x0 = hanning(len)
Page 1107 and 1108:
l ( sa) ⎥ + 0. ⎥ ( sab ) ⎦
Page 1109 and 1110:
ISO/IEC 14496-3:2005(E) the first s
Page 1111 and 1112:
Noise residual Gain parameter G is
Page 1113 and 1114:
8.C.6 Parametric stereo 8.C.6.1 Mon
Page 1115 and 1116:
The IID, denoted as ( b) 30 57-59 3
Page 1117 and 1118:
Qf ( s_freq[sf] [ch][n] s_freq_ coa
Page 1119 and 1120:
where ngainrl,p4sf represents the g
Page 1121 and 1122:
= nˆ + 1− m ncurr curr In order
Page 1123 and 1124:
Page 1125 and 1126:
ISO/IEC 14496-3:2005(E) 9.5.2 Sampl
Page 1127 and 1128:
ISO/IEC 14496-3:2005(E) Annex 9.A (
Page 1129 and 1130:
ISO/IEC 14496-3:2005(E) Table 9.A.5
Page 1131 and 1132:
ISO/IEC 14496-3:2005(E) Annex 9.C (
Page 1133 and 1134:
ISO/IEC 14496-3:2005(E) access unit
Page 1135 and 1136:
ISO/IEC 14496-3:2005(E) Since the d
Page 1137 and 1138:
Page 1139 and 1140:
ISO/IEC 14496-3:2005(E) 10.3.4 Deci
Page 1141 and 1142:
ISO/IEC 14496-3:2005(E) Table 10.3
Page 1143 and 1144:
ISO/IEC 14496-3:2005(E) } { } Eleme
Page 1145 and 1146:
ISO/IEC 14496-3:2005(E) } } } 10.6
Page 1147 and 1148:
ISO/IEC 14496-3:2005(E) Figure 10.2
Page 1149 and 1150:
ISO/IEC 14496-3:2005(E) For each Au
Page 1151 and 1152:
ISO/IEC 14496-3:2005(E) n−1 n If
Page 1153 and 1154:
ISO/IEC 14496-3:2005(E) Element[Cha
Page 1155 and 1156:
ISO/IEC 14496-3:2005(E) Table 10.18
Page 1157 and 1158:
ISO/IEC 14496-3:2005(E) 128, corres
Page 1159 and 1160:
ISO/IEC 14496-3:2005(E) D Parameter
Page 1161 and 1162:
ISO/IEC 14496-3:2005(E) Table 10.22
Page 1163 and 1164:
ISO/IEC 14496-3:2005(E) Y 28 © ISO
Page 1165 and 1166:
ISO/IEC 14496-3:2005(E) and Seg is
Page 1167 and 1168:
ISO/IEC 14496-3:2005(E) 10.7.3 Rest
Page 1169 and 1170:
ISO/IEC 14496-3:2005(E) Annex 10.A
Page 1171 and 1172:
ISO/IEC 14496-3:2005(E) N bits 2 2
show all

2010318163752818

Create successful ePaper yourself

Delete template?

Save as template?