CA2378062A1 - Coded domain adaptive level control of compressed speech - Google Patents
Coded domain adaptive level control of compressed speech Download PDFInfo
- Publication number
- CA2378062A1 CA2378062A1 CA002378062A CA2378062A CA2378062A1 CA 2378062 A1 CA2378062 A1 CA 2378062A1 CA 002378062 A CA002378062 A CA 002378062A CA 2378062 A CA2378062 A CA 2378062A CA 2378062 A1 CA2378062 A1 CA 2378062A1
- Authority
- CA
- Canada
- Prior art keywords
- parameter
- adjusted
- near end
- characteristic
- code
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Abandoned
Links
- 230000003044 adaptive effect Effects 0.000 title description 17
- 230000006835 compression Effects 0.000 claims abstract description 70
- 238000007906 compression Methods 0.000 claims abstract description 70
- 230000005236 sound signal Effects 0.000 claims abstract description 31
- 238000004891 communication Methods 0.000 claims abstract description 12
- 238000000034 method Methods 0.000 claims description 122
- 238000013139 quantization Methods 0.000 claims description 114
- 239000013598 vector Substances 0.000 claims description 44
- 238000012545 processing Methods 0.000 claims description 29
- 230000005284 excitation Effects 0.000 claims description 27
- 238000012937 correction Methods 0.000 claims description 18
- 230000004044 response Effects 0.000 claims description 17
- 238000001914 filtration Methods 0.000 claims description 6
- 238000010295 mobile communication Methods 0.000 claims description 4
- 230000007774 longterm Effects 0.000 claims 2
- 238000012360 testing method Methods 0.000 claims 2
- 230000008569 process Effects 0.000 description 39
- 230000015572 biosynthetic process Effects 0.000 description 28
- 238000010586 diagram Methods 0.000 description 28
- 238000003786 synthesis reaction Methods 0.000 description 28
- 230000005540 biological transmission Effects 0.000 description 19
- 238000013459 approach Methods 0.000 description 15
- 230000006870 function Effects 0.000 description 15
- 230000003139 buffering effect Effects 0.000 description 13
- 238000012986 modification Methods 0.000 description 13
- 230000004048 modification Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 10
- 230000001413 cellular effect Effects 0.000 description 9
- 238000012546 transfer Methods 0.000 description 8
- 238000005259 measurement Methods 0.000 description 6
- 230000015654 memory Effects 0.000 description 6
- 230000008859 change Effects 0.000 description 5
- 238000010606 normalization Methods 0.000 description 5
- 230000002265 prevention Effects 0.000 description 4
- 230000009467 reduction Effects 0.000 description 4
- 230000003595 spectral effect Effects 0.000 description 4
- 230000006978 adaptation Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 230000001934 delay Effects 0.000 description 3
- 230000003534 oscillatory effect Effects 0.000 description 3
- 238000005311 autocorrelation function Methods 0.000 description 2
- 230000006399 behavior Effects 0.000 description 2
- FFBHFFJDDLITSX-UHFFFAOYSA-N benzyl N-[2-hydroxy-4-(3-oxomorpholin-4-yl)phenyl]carbamate Chemical compound OC1=C(NC(=O)OCC2=CC=CC=C2)C=CC(=C1)N1CCOCC1=O FFBHFFJDDLITSX-UHFFFAOYSA-N 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000306 component Substances 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000284 extract Substances 0.000 description 2
- 101150022753 galc gene Proteins 0.000 description 2
- 230000003278 mimic effect Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- 101000622137 Homo sapiens P-selectin Proteins 0.000 description 1
- 102100023472 P-selectin Human genes 0.000 description 1
- 101000873420 Simian virus 40 SV40 early leader protein Proteins 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003831 deregulation Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 231100001261 hazardous Toxicity 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M9/00—Arrangements for interconnection not involving centralised switching
- H04M9/08—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic
- H04M9/082—Two-way loud-speaking telephone systems with means for conditioning the signal, e.g. for suppressing echoes for one or both directions of traffic using echo cancellers
-
- 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
- G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
- G10L21/0364—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude for improving intelligibility
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B3/00—Line transmission systems
- H04B3/02—Details
- H04B3/20—Reducing echo effects or singing; Opening or closing transmitting path; Conditioning for transmission in one direction or the other
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L1/00—Arrangements for detecting or preventing errors in the information received
- H04L1/0001—Systems modifying transmission characteristics according to link quality, e.g. power backoff
- H04L1/0014—Systems modifying transmission characteristics according to link quality, e.g. power backoff by adapting the source coding
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Quality & Reliability (AREA)
- Human Computer Interaction (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Computational Linguistics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14213699P | 1999-07-02 | 1999-07-02 | |
| US60/142,136 | 1999-07-02 | ||
| PCT/US2000/018293 WO2001003317A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain adaptive level control of compressed speech |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA2378062A1 true CA2378062A1 (en) | 2001-01-11 |
Family
ID=22498680
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002378035A Abandoned CA2378035A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain noise control |
| CA002378062A Abandoned CA2378062A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain adaptive level control of compressed speech |
| CA002378012A Abandoned CA2378012A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain echo control |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002378035A Abandoned CA2378035A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain noise control |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002378012A Abandoned CA2378012A1 (en) | 1999-07-02 | 2000-06-30 | Coded domain echo control |
Country Status (5)
| Country | Link |
|---|---|
| EP (3) | EP1190494A1 (de) |
| JP (3) | JP2003533902A (de) |
| AU (3) | AU6067100A (de) |
| CA (3) | CA2378035A1 (de) |
| WO (3) | WO2001002929A2 (de) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1301018A1 (de) * | 2001-10-02 | 2003-04-09 | Alcatel | Verfahren und Vorrichtung zum Ändern eines digitalen Signals im Kodebereich |
| JP3946074B2 (ja) * | 2002-04-05 | 2007-07-18 | 日本電信電話株式会社 | 音声処理装置 |
| JP3876781B2 (ja) | 2002-07-16 | 2007-02-07 | ソニー株式会社 | 受信装置および受信方法、記録媒体、並びにプログラム |
| EP1521242A1 (de) * | 2003-10-01 | 2005-04-06 | Siemens Aktiengesellschaft | Verfahren zur Sprachkodierung mit Geräuschunterdrückung durch Modifizierung der Kodebuchverstärkung |
| US7613607B2 (en) | 2003-12-18 | 2009-11-03 | Nokia Corporation | Audio enhancement in coded domain |
| US8874437B2 (en) | 2005-03-28 | 2014-10-28 | Tellabs Operations, Inc. | Method and apparatus for modifying an encoded signal for voice quality enhancement |
| US8078659B2 (en) * | 2005-10-31 | 2011-12-13 | Telefonaktiebolaget L M Ericsson (Publ) | Reduction of digital filter delay |
| US7852792B2 (en) * | 2006-09-19 | 2010-12-14 | Alcatel-Lucent Usa Inc. | Packet based echo cancellation and suppression |
| JP4915576B2 (ja) * | 2007-05-28 | 2012-04-11 | パナソニック株式会社 | 音声伝送システム |
| JP4915575B2 (ja) * | 2007-05-28 | 2012-04-11 | パナソニック株式会社 | 音声伝送システム |
| JP4915577B2 (ja) * | 2007-05-28 | 2012-04-11 | パナソニック株式会社 | 音声伝送システム |
| US8032365B2 (en) * | 2007-08-31 | 2011-10-04 | Tellabs Operations, Inc. | Method and apparatus for controlling echo in the coded domain |
| WO2012106926A1 (zh) | 2011-07-25 | 2012-08-16 | 华为技术有限公司 | 一种参数域回声控制装置和方法 |
| TWI469135B (zh) * | 2011-12-22 | 2015-01-11 | Univ Kun Shan | 調適性差分脈衝碼調變編碼解碼的方法 |
| JP6011188B2 (ja) * | 2012-09-18 | 2016-10-19 | 沖電気工業株式会社 | エコー経路遅延測定装置、方法及びプログラム |
| WO2019009204A1 (ja) * | 2017-07-03 | 2019-01-10 | パイオニア株式会社 | 信号処理装置、制御方法、プログラム及び記憶媒体 |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0683114B2 (ja) * | 1985-03-08 | 1994-10-19 | 松下電器産業株式会社 | エコ−キヤンセラ |
| US4969192A (en) * | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
| US5140543A (en) * | 1989-04-18 | 1992-08-18 | Victor Company Of Japan, Ltd. | Apparatus for digitally processing audio signal |
| US5097507A (en) * | 1989-12-22 | 1992-03-17 | General Electric Company | Fading bit error protection for digital cellular multi-pulse speech coder |
| US5680508A (en) * | 1991-05-03 | 1997-10-21 | Itt Corporation | Enhancement of speech coding in background noise for low-rate speech coder |
| JP3353257B2 (ja) * | 1993-08-30 | 2002-12-03 | 日本電信電話株式会社 | 音声符号化復号化併用型エコーキャンセラー |
| US5828995A (en) * | 1995-02-28 | 1998-10-27 | Motorola, Inc. | Method and apparatus for intelligible fast forward and reverse playback of time-scale compressed voice messages |
| JPH0954600A (ja) * | 1995-08-14 | 1997-02-25 | Toshiba Corp | 音声符号化通信装置 |
| JPH0993132A (ja) * | 1995-09-27 | 1997-04-04 | Toshiba Corp | 符号化・復号化装置及び方法 |
| JPH10143197A (ja) * | 1996-11-06 | 1998-05-29 | Matsushita Electric Ind Co Ltd | 再生装置 |
| US5943645A (en) * | 1996-12-19 | 1999-08-24 | Northern Telecom Limited | Method and apparatus for computing measures of echo |
| JP3283200B2 (ja) * | 1996-12-19 | 2002-05-20 | ケイディーディーアイ株式会社 | 符号化音声データの符号化レート変換方法および装置 |
| US6064693A (en) * | 1997-02-28 | 2000-05-16 | Data Race, Inc. | System and method for handling underrun of compressed speech frames due to unsynchronized receive and transmit clock rates |
| JP3317181B2 (ja) * | 1997-03-25 | 2002-08-26 | ヤマハ株式会社 | カラオケ装置 |
| US6112177A (en) * | 1997-11-07 | 2000-08-29 | At&T Corp. | Coarticulation method for audio-visual text-to-speech synthesis |
| DE69736446T2 (de) * | 1997-12-24 | 2007-03-29 | Mitsubishi Denki K.K. | Audio Dekodierverfahren und -vorrichtung |
-
2000
- 2000-06-30 AU AU60671/00A patent/AU6067100A/en not_active Abandoned
- 2000-06-30 JP JP2001508063A patent/JP2003533902A/ja active Pending
- 2000-06-30 EP EP00946994A patent/EP1190494A1/de not_active Withdrawn
- 2000-06-30 EP EP00948555A patent/EP1190495A1/de not_active Withdrawn
- 2000-06-30 CA CA002378035A patent/CA2378035A1/en not_active Abandoned
- 2000-06-30 CA CA002378062A patent/CA2378062A1/en not_active Abandoned
- 2000-06-30 JP JP2001508667A patent/JP2003504669A/ja active Pending
- 2000-06-30 CA CA002378012A patent/CA2378012A1/en not_active Abandoned
- 2000-06-30 JP JP2001508064A patent/JP2003503760A/ja active Pending
- 2000-06-30 EP EP00946954A patent/EP1208413A2/de active Pending
- 2000-06-30 AU AU60636/00A patent/AU6063600A/en not_active Abandoned
- 2000-06-30 WO PCT/US2000/018165 patent/WO2001002929A2/en not_active Ceased
- 2000-06-30 WO PCT/US2000/018104 patent/WO2001003316A1/en not_active Ceased
- 2000-06-30 AU AU62033/00A patent/AU6203300A/en not_active Abandoned
- 2000-06-30 WO PCT/US2000/018293 patent/WO2001003317A1/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001003316A1 (en) | 2001-01-11 |
| CA2378035A1 (en) | 2001-01-11 |
| EP1190495A1 (de) | 2002-03-27 |
| WO2001002929A3 (en) | 2001-07-19 |
| JP2003503760A (ja) | 2003-01-28 |
| EP1208413A2 (de) | 2002-05-29 |
| CA2378012A1 (en) | 2001-01-11 |
| AU6203300A (en) | 2001-01-22 |
| AU6063600A (en) | 2001-01-22 |
| EP1190494A1 (de) | 2002-03-27 |
| WO2001002929A2 (en) | 2001-01-11 |
| JP2003533902A (ja) | 2003-11-11 |
| JP2003504669A (ja) | 2003-02-04 |
| AU6067100A (en) | 2001-01-22 |
| WO2001003317A1 (en) | 2001-01-11 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2325707C2 (ru) | Способ и устройство для эффективного маскирования стертых кадров в речевых кодеках на основе линейного предсказания | |
| US7362811B2 (en) | Audio enhancement communication techniques | |
| US5659622A (en) | Method and apparatus for suppressing noise in a communication system | |
| US7613607B2 (en) | Audio enhancement in coded domain | |
| CA2378062A1 (en) | Coded domain adaptive level control of compressed speech | |
| US20070094018A1 (en) | MELP-to-LPC transcoder | |
| US8073497B2 (en) | Echo canceller with correlation using pre-whitened data values received by downlink codec | |
| US20040243404A1 (en) | Method and apparatus for improving voice quality of encoded speech signals in a network | |
| US20030195745A1 (en) | LPC-to-MELP transcoder | |
| US8543388B2 (en) | Efficient speech stream conversion | |
| US20070160154A1 (en) | Method and apparatus for injecting comfort noise in a communications signal | |
| US20030065507A1 (en) | Network unit and a method for modifying a digital signal in the coded domain | |
| EP1020848A2 (de) | Verfahren zur Übertragung von zusätzlichen informationen in einem Vokoder-Datenstrom | |
| JP2003533902A5 (de) | ||
| US7536298B2 (en) | Method of comfort noise generation for speech communication | |
| EP1544848B1 (de) | Qualitätsverbesserung eines Audiosignals im Kodierbereich | |
| US20050102136A1 (en) | Speech codecs | |
| CN100369108C (zh) | 编码域中的音频增强的方法和设备 | |
| Huang | Effects of vocoder distortion and packet loss on network echo cancellation | |
| Åkerberg et al. | Audio Techniques | |
| Wada et al. | Measurement of the effects of nonlinearities on the network-based linear acoustic echo cancellation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FZDE | Discontinued |