TWI288915B - Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components - Google Patents
Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components Download PDFInfo
- Publication number
- TWI288915B TWI288915B TW092112969A TW92112969A TWI288915B TW I288915 B TWI288915 B TW I288915B TW 092112969 A TW092112969 A TW 092112969A TW 92112969 A TW92112969 A TW 92112969A TW I288915 B TWI288915 B TW I288915B
- Authority
- TW
- Taiwan
- Prior art keywords
- sub
- components
- band signal
- synthesized
- band
- Prior art date
Links
- 230000003595 spectral effect Effects 0.000 title claims abstract description 85
- 230000005236 sound signal Effects 0.000 claims abstract description 37
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 16
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 16
- 230000002123 temporal effect Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 claims description 40
- 238000012545 processing Methods 0.000 claims description 20
- 238000001228 spectrum Methods 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 12
- 230000000694 effects Effects 0.000 claims description 11
- 230000004044 response Effects 0.000 claims description 7
- 238000005314 correlation function Methods 0.000 claims 3
- 238000010586 diagram Methods 0.000 description 9
- 238000004458 analytical method Methods 0.000 description 7
- 239000002131 composite material Substances 0.000 description 6
- 230000009466 transformation Effects 0.000 description 6
- 241001123248 Arma Species 0.000 description 5
- 238000007493 shaping process Methods 0.000 description 5
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- 238000004891 communication Methods 0.000 description 3
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- 230000004048 modification Effects 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
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- 238000013519 translation Methods 0.000 description 2
- WPWMAIDTZPLUGB-IUCAKERBSA-N (5S)-5-[(1S)-1-hydroxyhexyl]oxolan-2-one Chemical compound CCCCC[C@H](O)[C@@H]1CCC(=O)O1 WPWMAIDTZPLUGB-IUCAKERBSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US10/174,493 US7447631B2 (en) | 2002-06-17 | 2002-06-17 | Audio coding system using spectral hole filling |
| US10/238,047 US7337118B2 (en) | 2002-06-17 | 2002-09-06 | Audio coding system using characteristics of a decoded signal to adapt synthesized spectral components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| TW200400487A TW200400487A (en) | 2004-01-01 |
| TWI288915B true TWI288915B (en) | 2007-10-21 |
Family
ID=29738991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW092112969A TWI288915B (en) | 2002-06-17 | 2003-05-13 | Improved audio coding system using characteristics of a decoded signal to adapt synthesized spectral components |
Country Status (10)
| Country | Link |
|---|---|
| US (1) | US20080140405A1 (enExample) |
| EP (1) | EP1514263B1 (enExample) |
| JP (1) | JP2005530206A (enExample) |
| CN (1) | CN1310210C (enExample) |
| AU (1) | AU2003243441C1 (enExample) |
| CA (1) | CA2489443C (enExample) |
| MX (1) | MXPA04012540A (enExample) |
| PL (1) | PL207861B1 (enExample) |
| TW (1) | TWI288915B (enExample) |
| WO (1) | WO2003107329A1 (enExample) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2003244168A1 (en) | 2002-07-19 | 2004-02-09 | Matsushita Electric Industrial Co., Ltd. | Audio decoding device, decoding method, and program |
| US7774707B2 (en) * | 2004-12-01 | 2010-08-10 | Creative Technology Ltd | Method and apparatus for enabling a user to amend an audio file |
| US8392176B2 (en) | 2006-04-10 | 2013-03-05 | Qualcomm Incorporated | Processing of excitation in audio coding and decoding |
| US8060363B2 (en) * | 2007-02-13 | 2011-11-15 | Nokia Corporation | Audio signal encoding |
| US8428957B2 (en) | 2007-08-24 | 2013-04-23 | Qualcomm Incorporated | Spectral noise shaping in audio coding based on spectral dynamics in frequency sub-bands |
| EP3401907B1 (en) | 2007-08-27 | 2019-11-20 | Telefonaktiebolaget LM Ericsson (publ) | Method and device for perceptual spectral decoding of an audio signal including filling of spectral holes |
| MY154452A (en) | 2008-07-11 | 2015-06-15 | Fraunhofer Ges Forschung | An apparatus and a method for decoding an encoded audio signal |
| ES2654432T3 (es) * | 2008-07-11 | 2018-02-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Codificador de señal de audio, método para generar una señal de audio y programa informático |
| EP2239732A1 (en) | 2009-04-09 | 2010-10-13 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for generating a synthesis audio signal and for encoding an audio signal |
| RU2452044C1 (ru) | 2009-04-02 | 2012-05-27 | Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф. | Устройство, способ и носитель с программным кодом для генерирования представления сигнала с расширенным диапазоном частот на основе представления входного сигнала с использованием сочетания гармонического расширения диапазона частот и негармонического расширения диапазона частот |
| CO6440537A2 (es) | 2009-04-09 | 2012-05-15 | Fraunhofer Ges Forschung | Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio |
| CN101556799B (zh) | 2009-05-14 | 2013-08-28 | 华为技术有限公司 | 一种音频解码方法和音频解码器 |
| US9311925B2 (en) | 2009-10-12 | 2016-04-12 | Nokia Technologies Oy | Method, apparatus and computer program for processing multi-channel signals |
| SG10202101744YA (en) | 2010-01-19 | 2021-04-29 | Dolby Int Ab | Improved subband block based harmonic transposition |
| US12002476B2 (en) | 2010-07-19 | 2024-06-04 | Dolby International Ab | Processing of audio signals during high frequency reconstruction |
| US8831933B2 (en) | 2010-07-30 | 2014-09-09 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for multi-stage shape vector quantization |
| US9208792B2 (en) * | 2010-08-17 | 2015-12-08 | Qualcomm Incorporated | Systems, methods, apparatus, and computer-readable media for noise injection |
| EP2817803B1 (en) * | 2012-02-23 | 2016-02-03 | Dolby International AB | Methods and systems for efficient recovery of high frequency audio content |
| JP6200034B2 (ja) * | 2012-04-27 | 2017-09-20 | 株式会社Ｎｔｔドコモ | 音声復号装置 |
| US9607602B2 (en) * | 2013-09-06 | 2017-03-28 | Apple Inc. | ANC system with SPL-controlled output |
| US10090005B2 (en) * | 2016-03-10 | 2018-10-02 | Aspinity, Inc. | Analog voice activity detection |
| CN113053351B (zh) * | 2021-03-14 | 2024-01-30 | 西北工业大学 | 一种基于听觉感知的飞机舱内噪声合成方法 |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0551705A3 (en) * | 1992-01-15 | 1993-08-18 | Ericsson Ge Mobile Communications Inc. | Method for subbandcoding using synthetic filler signals for non transmitted subbands |
| JP2563719B2 (ja) * | 1992-03-11 | 1996-12-18 | 技術研究組合医療福祉機器研究所 | 音声加工装置と補聴器 |
| US5623577A (en) * | 1993-07-16 | 1997-04-22 | Dolby Laboratories Licensing Corporation | Computationally efficient adaptive bit allocation for encoding method and apparatus with allowance for decoder spectral distortions |
| JPH07225598A (ja) * | 1993-09-22 | 1995-08-22 | Massachusetts Inst Of Technol <Mit> | 動的に決定された臨界帯域を用いる音響コード化の方法および装置 |
| JP3254953B2 (ja) * | 1995-02-17 | 2002-02-12 | 日本ビクター株式会社 | 音声高能率符号化装置 |
| EP0878790A1 (en) * | 1997-05-15 | 1998-11-18 | Hewlett-Packard Company | Voice coding system and method |
| SE512719C2 (sv) * | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
| SE9903553D0 (sv) * | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
| SE0001926D0 (sv) * | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
| JP3538122B2 (ja) * | 2000-06-14 | 2004-06-14 | 株式会社ケンウッド | 周波数補間装置、周波数補間方法及び記録媒体 |
-
2003
- 2003-05-13 TW TW092112969A patent/TWI288915B/zh not_active IP Right Cessation
- 2003-06-09 MX MXPA04012540A patent/MXPA04012540A/es active IP Right Grant
- 2003-06-09 AU AU2003243441A patent/AU2003243441C1/en not_active Expired
- 2003-06-09 WO PCT/US2003/018065 patent/WO2003107329A1/en not_active Ceased
- 2003-06-09 JP JP2004514061A patent/JP2005530206A/ja active Pending
- 2003-06-09 PL PL371898A patent/PL207861B1/pl unknown
- 2003-06-09 EP EP03760242A patent/EP1514263B1/en not_active Expired - Lifetime
- 2003-06-09 CN CNB038139693A patent/CN1310210C/zh not_active Expired - Lifetime
- 2003-06-09 CA CA2489443A patent/CA2489443C/en not_active Expired - Lifetime
-
2007
- 2007-07-27 US US11/881,674 patent/US20080140405A1/en not_active Abandoned
Also Published As
| Publication number | Publication date |
|---|---|
| CN1310210C (zh) | 2007-04-11 |
| EP1514263A1 (en) | 2005-03-16 |
| MXPA04012540A (es) | 2005-04-28 |
| TW200400487A (en) | 2004-01-01 |
| CA2489443A1 (en) | 2003-12-24 |
| CA2489443C (en) | 2012-04-10 |
| CN1662960A (zh) | 2005-08-31 |
| AU2003243441C1 (en) | 2009-07-30 |
| JP2005530206A (ja) | 2005-10-06 |
| AU2003243441A1 (en) | 2003-12-31 |
| AU2003243441B2 (en) | 2008-12-11 |
| PL207861B1 (pl) | 2011-02-28 |
| EP1514263B1 (en) | 2010-06-02 |
| US20080140405A1 (en) | 2008-06-12 |
| WO2003107329A1 (en) | 2003-12-24 |
| PL371898A1 (en) | 2005-07-11 |
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| MK4A | Expiration of patent term of an invention patent |