AU2001286176A1 - Signal processing system for filtering spectral content of a signal for speech coding - Google Patents
Signal processing system for filtering spectral content of a signal for speech codingInfo
- Publication number
- AU2001286176A1 AU2001286176A1 AU2001286176A AU8617601A AU2001286176A1 AU 2001286176 A1 AU2001286176 A1 AU 2001286176A1 AU 2001286176 A AU2001286176 A AU 2001286176A AU 8617601 A AU8617601 A AU 8617601A AU 2001286176 A1 AU2001286176 A1 AU 2001286176A1
- Authority
- AU
- Australia
- Prior art keywords
- signal
- processing system
- speech coding
- spectral content
- signal processing
- 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
- 238000001914 filtration Methods 0.000 title 1
- 230000003595 spectral effect Effects 0.000 title 1
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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
-
- 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
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
- G10L19/265—Pre-filtering, e.g. high frequency emphasis prior to encoding
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Computational Linguistics (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)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US23304400P | 2000-09-15 | 2000-09-15 | |
| US60/233,044 | 2000-09-15 | ||
| US09/781,735 | 2001-02-12 | ||
| US09/781,735 US6842733B1 (en) | 2000-09-15 | 2001-02-12 | Signal processing system for filtering spectral content of a signal for speech coding |
| PCT/IB2001/001734 WO2002025634A2 (en) | 2000-09-15 | 2001-09-17 | Signal processing system for filtering spectral content of a signal for speech coding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AU2001286176A1 true AU2001286176A1 (en) | 2002-04-02 |
Family
ID=26926582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2001286176A Abandoned AU2001286176A1 (en) | 2000-09-15 | 2001-09-17 | Signal processing system for filtering spectral content of a signal for speech coding |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US6842733B1 (en) |
| AU (1) | AU2001286176A1 (en) |
| WO (1) | WO2002025634A2 (en) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4596196B2 (en) * | 2000-08-02 | 2010-12-08 | ソニー株式会社 | Digital signal processing method, learning method and apparatus, and program storage medium |
| US7353168B2 (en) * | 2001-10-03 | 2008-04-01 | Broadcom Corporation | Method and apparatus to eliminate discontinuities in adaptively filtered signals |
| US7379865B2 (en) * | 2001-10-26 | 2008-05-27 | At&T Corp. | System and methods for concealing errors in data transmission |
| KR100841096B1 (en) * | 2002-10-14 | 2008-06-25 | 리얼네트웍스아시아퍼시픽 주식회사 | Preprocessing method of digital audio signal for speech codec |
| US20060217972A1 (en) * | 2005-03-28 | 2006-09-28 | Tellabs Operations, Inc. | Method and apparatus for modifying an encoded signal |
| US20060217983A1 (en) * | 2005-03-28 | 2006-09-28 | Tellabs Operations, Inc. | Method and apparatus for injecting comfort noise in a communications system |
| US20060217970A1 (en) * | 2005-03-28 | 2006-09-28 | Tellabs Operations, Inc. | Method and apparatus for noise reduction |
| US20060215683A1 (en) * | 2005-03-28 | 2006-09-28 | Tellabs Operations, Inc. | Method and apparatus for voice quality enhancement |
| US20060217988A1 (en) * | 2005-03-28 | 2006-09-28 | Tellabs Operations, Inc. | Method and apparatus for adaptive level control |
| CN101604525B (en) * | 2008-12-31 | 2011-04-06 | 华为技术有限公司 | Pitch gain obtaining method, pitch gain obtaining device, coder and decoder |
| GB2476042B (en) * | 2009-12-08 | 2016-03-23 | Skype | Selective filtering for digital transmission when analogue speech has to be recreated |
| US9350616B1 (en) * | 2010-05-11 | 2016-05-24 | Trend Micro Inc. | Bandwidth prediction using a past available bandwidth value and a slope calculated from past available bandwidth values |
| US9524720B2 (en) | 2013-12-15 | 2016-12-20 | Qualcomm Incorporated | Systems and methods of blind bandwidth extension |
| US9953660B2 (en) * | 2014-08-19 | 2018-04-24 | Nuance Communications, Inc. | System and method for reducing tandeming effects in a communication system |
| EP3382701A1 (en) * | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for post-processing an audio signal using prediction based shaping |
| EP3576088A1 (en) * | 2018-05-30 | 2019-12-04 | Fraunhofer Gesellschaft zur Förderung der Angewand | Audio similarity evaluator, audio encoder, methods and computer program |
| CN113131975B (en) * | 2019-12-31 | 2025-04-08 | 中兴通讯股份有限公司 | Antenna array decoupling method, device, system and storage medium |
Family Cites Families (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4969192A (en) | 1987-04-06 | 1990-11-06 | Voicecraft, Inc. | Vector adaptive predictive coder for speech and audio |
| US5307441A (en) | 1989-11-29 | 1994-04-26 | Comsat Corporation | Wear-toll quality 4.8 kbps speech codec |
| DE69129329T2 (en) | 1990-09-14 | 1998-09-24 | Fujitsu Ltd | VOICE ENCODING SYSTEM |
| BR9106932A (en) | 1990-09-28 | 1993-08-03 | Philips Nv | SYSTEM AND PROCESS FOR CODING ANALOG SIGNS, DECODING SYSTEM TO OBTAIN AN ANALOG SIGN AND PROCESS OF RE-SYNTHESIZING ANALOG SIGNS |
| US5293449A (en) | 1990-11-23 | 1994-03-08 | Comsat Corporation | Analysis-by-synthesis 2,4 kbps linear predictive speech codec |
| US5396576A (en) | 1991-05-22 | 1995-03-07 | Nippon Telegraph And Telephone Corporation | Speech coding and decoding methods using adaptive and random code books |
| BR9206143A (en) | 1991-06-11 | 1995-01-03 | Qualcomm Inc | Vocal end compression processes and for variable rate encoding of input frames, apparatus to compress an acoustic signal into variable rate data, prognostic encoder triggered by variable rate code (CELP) and decoder to decode encoded frames |
| US5233660A (en) | 1991-09-10 | 1993-08-03 | At&T Bell Laboratories | Method and apparatus for low-delay celp speech coding and decoding |
| US5734789A (en) | 1992-06-01 | 1998-03-31 | Hughes Electronics | Voiced, unvoiced or noise modes in a CELP vocoder |
| US5367516A (en) | 1993-03-17 | 1994-11-22 | Miller William J | Method and apparatus for signal transmission and reception |
| US5995539A (en) | 1993-03-17 | 1999-11-30 | Miller; William J. | Method and apparatus for signal transmission and reception |
| US5574825A (en) | 1994-03-14 | 1996-11-12 | Lucent Technologies Inc. | Linear prediction coefficient generation during frame erasure or packet loss |
| US5615298A (en) | 1994-03-14 | 1997-03-25 | Lucent Technologies Inc. | Excitation signal synthesis during frame erasure or packet loss |
| FR2729244B1 (en) | 1995-01-06 | 1997-03-28 | Matra Communication | SYNTHESIS ANALYSIS SPEECH CODING METHOD |
| US5692098A (en) * | 1995-03-30 | 1997-11-25 | Harris | Real-time Mozer phase recoding using a neural-network for speech compression |
| US5915235A (en) * | 1995-04-28 | 1999-06-22 | Dejaco; Andrew P. | Adaptive equalizer preprocessor for mobile telephone speech coder to modify nonideal frequency response of acoustic transducer |
| FR2734389B1 (en) * | 1995-05-17 | 1997-07-18 | Proust Stephane | METHOD FOR ADAPTING THE NOISE MASKING LEVEL IN A SYNTHESIS-ANALYZED SPEECH ENCODER USING A SHORT-TERM PERCEPTUAL WEIGHTING FILTER |
| US5664055A (en) | 1995-06-07 | 1997-09-02 | Lucent Technologies Inc. | CS-ACELP speech compression system with adaptive pitch prediction filter gain based on a measure of periodicity |
| US5864798A (en) * | 1995-09-18 | 1999-01-26 | Kabushiki Kaisha Toshiba | Method and apparatus for adjusting a spectrum shape of a speech signal |
| JP3196595B2 (en) | 1995-09-27 | 2001-08-06 | 日本電気株式会社 | Audio coding device |
| US5778335A (en) | 1996-02-26 | 1998-07-07 | The Regents Of The University Of California | Method and apparatus for efficient multiband celp wideband speech and music coding and decoding |
| SE9700772D0 (en) * | 1997-03-03 | 1997-03-03 | Ericsson Telefon Ab L M | A high resolution post processing method for a speech decoder |
| US6073092A (en) | 1997-06-26 | 2000-06-06 | Telogy Networks, Inc. | Method for speech coding based on a code excited linear prediction (CELP) model |
| FR2783651A1 (en) * | 1998-09-22 | 2000-03-24 | Koninkl Philips Electronics Nv | DEVICE AND METHOD FOR FILTERING A SPEECH SIGNAL, RECEIVER AND TELEPHONE COMMUNICATIONS SYSTEM |
| US6850884B2 (en) * | 2000-09-15 | 2005-02-01 | Mindspeed Technologies, Inc. | Selection of coding parameters based on spectral content of a speech signal |
-
2001
- 2001-02-12 US US09/781,735 patent/US6842733B1/en not_active Expired - Lifetime
- 2001-09-17 AU AU2001286176A patent/AU2001286176A1/en not_active Abandoned
- 2001-09-17 WO PCT/IB2001/001734 patent/WO2002025634A2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2002025634A3 (en) | 2002-08-15 |
| WO2002025634A2 (en) | 2002-03-28 |
| US6842733B1 (en) | 2005-01-11 |
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