WO2006110990A1 - System for improving speech quality and intelligibility - Google Patents
System for improving speech quality and intelligibility Download PDFInfo
- Publication number
- WO2006110990A1 WO2006110990A1 PCT/CA2006/000440 CA2006000440W WO2006110990A1 WO 2006110990 A1 WO2006110990 A1 WO 2006110990A1 CA 2006000440 W CA2006000440 W CA 2006000440W WO 2006110990 A1 WO2006110990 A1 WO 2006110990A1
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- WO
- WIPO (PCT)
- Prior art keywords
- frequency
- speech signal
- signal
- domain
- compressed
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Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal 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
- G10L21/0208—Noise filtering
- G10L21/0264—Noise filtering characterised by the type of parameter measurement, e.g. correlation techniques, zero crossing techniques or predictive techniques
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP06721706.7A EP1872365B1 (en) | 2005-04-20 | 2006-03-23 | Improving speech quality and intelligibility |
CA2604859A CA2604859C (en) | 2005-04-20 | 2006-03-23 | System for improving speech quality and intelligibility |
JP2008506891A JP4707739B2 (en) | 2005-04-20 | 2006-03-23 | System for improving speech quality and intelligibility |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/110,556 US7813931B2 (en) | 2005-04-20 | 2005-04-20 | System for improving speech quality and intelligibility with bandwidth compression/expansion |
US11/110,556 | 2005-04-20 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006110990A1 true WO2006110990A1 (en) | 2006-10-26 |
Family
ID=37114660
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CA2006/000440 WO2006110990A1 (en) | 2005-04-20 | 2006-03-23 | System for improving speech quality and intelligibility |
Country Status (7)
Country | Link |
---|---|
US (1) | US7813931B2 (en) |
EP (1) | EP1872365B1 (en) |
JP (1) | JP4707739B2 (en) |
KR (1) | KR20070112848A (en) |
CN (1) | CN100557687C (en) |
CA (1) | CA2604859C (en) |
WO (1) | WO2006110990A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101341246B1 (en) | 2009-02-04 | 2013-12-12 | 모토로라 모빌리티 엘엘씨 | Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder |
Families Citing this family (48)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8249861B2 (en) * | 2005-04-20 | 2012-08-21 | Qnx Software Systems Limited | High frequency compression integration |
US8086451B2 (en) * | 2005-04-20 | 2011-12-27 | Qnx Software Systems Co. | System for improving speech intelligibility through high frequency compression |
US7974422B1 (en) * | 2005-08-25 | 2011-07-05 | Tp Lab, Inc. | System and method of adjusting the sound of multiple audio objects directed toward an audio output device |
US7953605B2 (en) * | 2005-10-07 | 2011-05-31 | Deepen Sinha | Method and apparatus for audio encoding and decoding using wideband psychoacoustic modeling and bandwidth extension |
DE602007013026D1 (en) * | 2006-04-27 | 2011-04-21 | Panasonic Corp | AUDIOCODING DEVICE, AUDIO DECODING DEVICE AND METHOD THEREFOR |
JP4986182B2 (en) * | 2007-03-20 | 2012-07-25 | 日本電気株式会社 | Acoustic processing system, method and mobile phone terminal for electronic equipment |
US20090018826A1 (en) * | 2007-07-13 | 2009-01-15 | Berlin Andrew A | Methods, Systems and Devices for Speech Transduction |
US8000487B2 (en) | 2008-03-06 | 2011-08-16 | Starkey Laboratories, Inc. | Frequency translation by high-frequency spectral envelope warping in hearing assistance devices |
US8626516B2 (en) * | 2009-02-09 | 2014-01-07 | Broadcom Corporation | Method and system for dynamic range control in an audio processing system |
US8526650B2 (en) * | 2009-05-06 | 2013-09-03 | Starkey Laboratories, Inc. | Frequency translation by high-frequency spectral envelope warping in hearing assistance devices |
US9031835B2 (en) * | 2009-11-19 | 2015-05-12 | Telefonaktiebolaget L M Ericsson (Publ) | Methods and arrangements for loudness and sharpness compensation in audio codecs |
US8473287B2 (en) | 2010-04-19 | 2013-06-25 | Audience, Inc. | Method for jointly optimizing noise reduction and voice quality in a mono or multi-microphone system |
US8538035B2 (en) | 2010-04-29 | 2013-09-17 | Audience, Inc. | Multi-microphone robust noise suppression |
US8798290B1 (en) | 2010-04-21 | 2014-08-05 | Audience, Inc. | Systems and methods for adaptive signal equalization |
US8781137B1 (en) | 2010-04-27 | 2014-07-15 | Audience, Inc. | Wind noise detection and suppression |
US9245538B1 (en) * | 2010-05-20 | 2016-01-26 | Audience, Inc. | Bandwidth enhancement of speech signals assisted by noise reduction |
US8600737B2 (en) * | 2010-06-01 | 2013-12-03 | Qualcomm Incorporated | Systems, methods, apparatus, and computer program products for wideband speech coding |
US8447596B2 (en) | 2010-07-12 | 2013-05-21 | Audience, Inc. | Monaural noise suppression based on computational auditory scene analysis |
JP5589631B2 (en) * | 2010-07-15 | 2014-09-17 | 富士通株式会社 | Voice processing apparatus, voice processing method, and telephone apparatus |
DE102011006148B4 (en) | 2010-11-04 | 2015-01-08 | Siemens Medical Instruments Pte. Ltd. | Communication system with telephone and hearing device and transmission method |
KR20140027091A (en) * | 2011-02-08 | 2014-03-06 | 엘지전자 주식회사 | Method and device for bandwidth extension |
MX370012B (en) * | 2011-06-30 | 2019-11-28 | Samsung Electronics Co Ltd | Apparatus and method for generating bandwidth extension signal. |
FR2988966B1 (en) | 2012-03-28 | 2014-11-07 | Eurocopter France | METHOD FOR SIMULTANEOUS TRANSFORMATION OF VOCAL INPUT SIGNALS OF A COMMUNICATION SYSTEM |
US8787605B2 (en) | 2012-06-15 | 2014-07-22 | Starkey Laboratories, Inc. | Frequency translation in hearing assistance devices using additive spectral synthesis |
JP6079119B2 (en) | 2012-10-10 | 2017-02-15 | ティアック株式会社 | Recording device |
JP6056356B2 (en) * | 2012-10-10 | 2017-01-11 | ティアック株式会社 | Recording device |
US9530430B2 (en) | 2013-02-22 | 2016-12-27 | Mitsubishi Electric Corporation | Voice emphasis device |
JP2014219607A (en) * | 2013-05-09 | 2014-11-20 | ソニー株式会社 | Music signal processing apparatus and method, and program |
CN103523040B (en) * | 2013-10-17 | 2016-08-17 | 南车株洲电力机车有限公司 | A kind of obstacle deflector and a kind of traffic information collection method |
CN105900170B (en) * | 2014-01-07 | 2020-03-10 | 哈曼国际工业有限公司 | Signal quality based enhancement and compensation of compressed audio signals |
KR101864122B1 (en) | 2014-02-20 | 2018-06-05 | 삼성전자주식회사 | Electronic apparatus and controlling method thereof |
KR102318763B1 (en) | 2014-08-28 | 2021-10-28 | 삼성전자주식회사 | Processing Method of a function and Electronic device supporting the same |
KR101682796B1 (en) | 2015-03-03 | 2016-12-05 | 서울과학기술대학교 산학협력단 | Method for listening intelligibility using syllable-type-based phoneme weighting techniques in noisy environments, and recording medium thereof |
US10575103B2 (en) | 2015-04-10 | 2020-02-25 | Starkey Laboratories, Inc. | Neural network-driven frequency translation |
EP3998763A1 (en) * | 2015-09-14 | 2022-05-18 | Cogito Corporation | Systems and methods for managing, analyzing, and providing visualizations of multi-party dialogs |
US9843875B2 (en) | 2015-09-25 | 2017-12-12 | Starkey Laboratories, Inc. | Binaurally coordinated frequency translation in hearing assistance devices |
WO2017144253A1 (en) * | 2016-02-24 | 2017-08-31 | Widex A/S | A method of operating a hearing aid system and a hearing aid system |
CN105931651B (en) * | 2016-04-13 | 2019-09-24 | 南方科技大学 | Audio signal processing method, device and hearing-aid device in hearing-aid device |
JP6763194B2 (en) | 2016-05-10 | 2020-09-30 | 株式会社Jvcケンウッド | Encoding device, decoding device, communication system |
GB2566760B (en) * | 2017-10-20 | 2019-10-23 | Please Hold Uk Ltd | Audio Signal |
GB2566759B8 (en) | 2017-10-20 | 2021-12-08 | Please Hold Uk Ltd | Encoding identifiers to produce audio identifiers from a plurality of audio bitstreams |
CN108198571B (en) * | 2017-12-21 | 2021-07-30 | 中国科学院声学研究所 | Bandwidth extension method and system based on self-adaptive bandwidth judgment |
TWI662544B (en) * | 2018-05-28 | 2019-06-11 | 塞席爾商元鼎音訊股份有限公司 | Method for detecting ambient noise to change the playing voice frequency and sound playing device thereof |
CN110570875A (en) * | 2018-06-05 | 2019-12-13 | 塞舌尔商元鼎音讯股份有限公司 | Method for detecting environmental noise to change playing voice frequency and voice playing device |
EP4055594A4 (en) * | 2019-11-29 | 2022-12-28 | Samsung Electronics Co., Ltd. | Method, device and electronic apparatus for transmitting and receiving speech signal |
CN113593586A (en) * | 2020-04-15 | 2021-11-02 | 华为技术有限公司 | Audio signal encoding method, decoding method, encoding apparatus, and decoding apparatus |
RU203218U1 (en) * | 2020-12-15 | 2021-03-26 | Общество с ограниченной ответственностью "Речевая аппаратура "Унитон" | "SPEECH CORRECTOR" - A DEVICE FOR IMPROVING SPEECH OBTAINING |
EP4134954B1 (en) * | 2021-08-09 | 2023-08-02 | OPTImic GmbH | Method and device for improving an audio signal |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4255620A (en) * | 1978-01-09 | 1981-03-10 | Vbc, Inc. | Method and apparatus for bandwidth reduction |
US4741039A (en) * | 1982-01-26 | 1988-04-26 | Metme Corporation | System for maximum efficient transfer of modulated energy |
US6577739B1 (en) * | 1997-09-19 | 2003-06-10 | University Of Iowa Research Foundation | Apparatus and methods for proportional audio compression and frequency shifting |
US20040264721A1 (en) | 2003-03-06 | 2004-12-30 | Phonak Ag | Method for frequency transposition and use of the method in a hearing device and a communication device |
WO2005015952A1 (en) * | 2003-08-11 | 2005-02-17 | Vast Audio Pty Ltd | Sound enhancement for hearing-impaired listeners |
Family Cites Families (80)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1424133A (en) | 1972-02-24 | 1976-02-11 | Int Standard Electric Corp | Transmission of wide-band sound signals |
US4130734A (en) | 1977-12-23 | 1978-12-19 | Lockheed Missiles & Space Company, Inc. | Analog audio signal bandwidth compressor |
US4170719A (en) * | 1978-06-14 | 1979-10-09 | Bell Telephone Laboratories, Incorporated | Speech transmission system |
US4374304A (en) | 1980-09-26 | 1983-02-15 | Bell Telephone Laboratories, Incorporated | Spectrum division/multiplication communication arrangement for speech signals |
FR2494988B1 (en) | 1980-11-28 | 1985-07-05 | Lafon Jean Claude | IMPROVEMENTS ON HEARING AID DEVICES |
US4343005A (en) | 1980-12-29 | 1982-08-03 | Ford Aerospace & Communications Corporation | Microwave antenna system having enhanced band width and reduced cross-polarization |
JPS59122135A (en) * | 1982-12-28 | 1984-07-14 | Fujitsu Ltd | Voice compressing transmitting system |
US4600902A (en) * | 1983-07-01 | 1986-07-15 | Wegener Communications, Inc. | Compandor noise reduction circuit |
US4700360A (en) | 1984-12-19 | 1987-10-13 | Extrema Systems International Corporation | Extrema coding digitizing signal processing method and apparatus |
DE3784717T2 (en) | 1987-09-03 | 1993-08-26 | Philips Nv | PHASE AND GAIN CONTROL FOR A RECEIVER WITH TWO BRANCHES. |
JP3137995B2 (en) | 1991-01-31 | 2001-02-26 | パイオニア株式会社 | PCM digital audio signal playback device |
KR940006623B1 (en) | 1991-02-01 | 1994-07-23 | 삼성전자 주식회사 | Image signal processing system |
US5416787A (en) | 1991-07-30 | 1995-05-16 | Kabushiki Kaisha Toshiba | Method and apparatus for encoding and decoding convolutional codes |
US5396414A (en) | 1992-09-25 | 1995-03-07 | Hughes Aircraft Company | Adaptive noise cancellation |
JP2779886B2 (en) | 1992-10-05 | 1998-07-23 | 日本電信電話株式会社 | Wideband audio signal restoration method |
JPH0775339B2 (en) * | 1992-11-16 | 1995-08-09 | 株式会社小電力高速通信研究所 | Speech coding method and apparatus |
US5455888A (en) | 1992-12-04 | 1995-10-03 | Northern Telecom Limited | Speech bandwidth extension method and apparatus |
JP3396506B2 (en) * | 1993-04-09 | 2003-04-14 | 東光株式会社 | Audio signal compression and decompression devices |
US5345200A (en) | 1993-08-26 | 1994-09-06 | Gte Government Systems Corporation | Coupling network |
JP2570603B2 (en) * | 1993-11-24 | 1997-01-08 | 日本電気株式会社 | Audio signal transmission device and noise suppression device |
US5497090A (en) | 1994-04-20 | 1996-03-05 | Macovski; Albert | Bandwidth extension system using periodic switching |
JPH08102687A (en) * | 1994-09-29 | 1996-04-16 | Yamaha Corp | Aural transmission/reception system |
ATE284121T1 (en) | 1994-10-06 | 2004-12-15 | Fidelix Y K | METHOD FOR REPRODUCING AUDIO SIGNALS AND DEVICE THEREFOR |
JPH08321792A (en) * | 1995-05-26 | 1996-12-03 | Tohoku Electric Power Co Inc | Audio signal band compressed transmission method |
US5774841A (en) | 1995-09-20 | 1998-06-30 | The United States Of America As Represented By The Adminstrator Of The National Aeronautics And Space Administration | Real-time reconfigurable adaptive speech recognition command and control apparatus and method |
US5790671A (en) | 1996-04-04 | 1998-08-04 | Ericsson Inc. | Method for automatically adjusting audio response for improved intelligibility |
US5822370A (en) * | 1996-04-16 | 1998-10-13 | Aura Systems, Inc. | Compression/decompression for preservation of high fidelity speech quality at low bandwidth |
US5771299A (en) | 1996-06-20 | 1998-06-23 | Audiologic, Inc. | Spectral transposition of a digital audio signal |
WO1998006090A1 (en) | 1996-08-02 | 1998-02-12 | Universite De Sherbrooke | Speech/audio coding with non-linear spectral-amplitude transformation |
JPH10124098A (en) * | 1996-10-23 | 1998-05-15 | Kokusai Electric Co Ltd | Speech processor |
JPH10124088A (en) | 1996-10-24 | 1998-05-15 | Sony Corp | Device and method for expanding voice frequency band width |
US6275596B1 (en) | 1997-01-10 | 2001-08-14 | Gn Resound Corporation | Open ear canal hearing aid system |
US6115363A (en) | 1997-02-19 | 2000-09-05 | Nortel Networks Corporation | Transceiver bandwidth extension using double mixing |
EP0878790A1 (en) | 1997-05-15 | 1998-11-18 | Hewlett-Packard Company | Voice coding system and method |
SE512719C2 (en) * | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | A method and apparatus for reducing data flow based on harmonic bandwidth expansion |
GB2326572A (en) | 1997-06-19 | 1998-12-23 | Softsound Limited | Low bit rate audio coder and decoder |
US6311153B1 (en) * | 1997-10-03 | 2001-10-30 | Matsushita Electric Industrial Co., Ltd. | Speech recognition method and apparatus using frequency warping of linear prediction coefficients |
US6154643A (en) | 1997-12-17 | 2000-11-28 | Nortel Networks Limited | Band with provisioning in a telecommunications system having radio links |
EP0945852A1 (en) | 1998-03-25 | 1999-09-29 | BRITISH TELECOMMUNICATIONS public limited company | Speech synthesis |
US6157682A (en) | 1998-03-30 | 2000-12-05 | Nortel Networks Corporation | Wideband receiver with bandwidth extension |
KR100269216B1 (en) | 1998-04-16 | 2000-10-16 | 윤종용 | Pitch determination method with spectro-temporal auto correlation |
US6295322B1 (en) | 1998-07-09 | 2001-09-25 | North Shore Laboratories, Inc. | Processing apparatus for synthetically extending the bandwidth of a spatially-sampled video image |
US6504935B1 (en) | 1998-08-19 | 2003-01-07 | Douglas L. Jackson | Method and apparatus for the modeling and synthesis of harmonic distortion |
US6539355B1 (en) * | 1998-10-15 | 2003-03-25 | Sony Corporation | Signal band expanding method and apparatus and signal synthesis method and apparatus |
US6195394B1 (en) | 1998-11-30 | 2001-02-27 | North Shore Laboratories, Inc. | Processing apparatus for use in reducing visible artifacts in the display of statistically compressed and then decompressed digital motion pictures |
US6144244A (en) | 1999-01-29 | 2000-11-07 | Analog Devices, Inc. | Logarithmic amplifier with self-compensating gain for frequency range extension |
US6226616B1 (en) | 1999-06-21 | 2001-05-01 | Digital Theater Systems, Inc. | Sound quality of established low bit-rate audio coding systems without loss of decoder compatibility |
SE517525C2 (en) | 1999-09-07 | 2002-06-18 | Ericsson Telefon Ab L M | Method and apparatus for constructing digital filters |
FI19992350A (en) * | 1999-10-29 | 2001-04-30 | Nokia Mobile Phones Ltd | Improved voice recognition |
WO2001035395A1 (en) | 1999-11-10 | 2001-05-17 | Koninklijke Philips Electronics N.V. | Wide band speech synthesis by means of a mapping matrix |
US7212640B2 (en) | 1999-11-29 | 2007-05-01 | Bizjak Karl M | Variable attack and release system and method |
JP2001196934A (en) * | 2000-01-05 | 2001-07-19 | Yamaha Corp | Voice signal band compression circuit |
US6704711B2 (en) | 2000-01-28 | 2004-03-09 | Telefonaktiebolaget Lm Ericsson (Publ) | System and method for modifying speech signals |
US6766292B1 (en) | 2000-03-28 | 2004-07-20 | Tellabs Operations, Inc. | Relative noise ratio weighting techniques for adaptive noise cancellation |
US7742927B2 (en) | 2000-04-18 | 2010-06-22 | France Telecom | Spectral enhancing method and device |
DE10041512B4 (en) | 2000-08-24 | 2005-05-04 | Infineon Technologies Ag | Method and device for artificially expanding the bandwidth of speech signals |
JP3576941B2 (en) * | 2000-08-25 | 2004-10-13 | 株式会社ケンウッド | Frequency thinning device, frequency thinning method and recording medium |
WO2002021525A1 (en) | 2000-09-08 | 2002-03-14 | Koninklijke Philips Electronics N.V. | Audio signal compression |
US6615169B1 (en) | 2000-10-18 | 2003-09-02 | Nokia Corporation | High frequency enhancement layer coding in wideband speech codec |
US6691085B1 (en) | 2000-10-18 | 2004-02-10 | Nokia Mobile Phones Ltd. | Method and system for estimating artificial high band signal in speech codec using voice activity information |
US20020128839A1 (en) | 2001-01-12 | 2002-09-12 | Ulf Lindgren | Speech bandwidth extension |
US6889182B2 (en) | 2001-01-12 | 2005-05-03 | Telefonaktiebolaget L M Ericsson (Publ) | Speech bandwidth extension |
US6741966B2 (en) * | 2001-01-22 | 2004-05-25 | Telefonaktiebolaget L.M. Ericsson | Methods, devices and computer program products for compressing an audio signal |
US7076316B2 (en) | 2001-02-02 | 2006-07-11 | Nortel Networks Limited | Method and apparatus for controlling an operative setting of a communications link |
JP2002244686A (en) | 2001-02-13 | 2002-08-30 | Hitachi Ltd | Voice processing method, and telephone and repeater station using the same |
SE522553C2 (en) | 2001-04-23 | 2004-02-17 | Ericsson Telefon Ab L M | Bandwidth extension of acoustic signals |
JP4506039B2 (en) * | 2001-06-15 | 2010-07-21 | ソニー株式会社 | Encoding apparatus and method, decoding apparatus and method, and encoding program and decoding program |
US7174135B2 (en) | 2001-06-28 | 2007-02-06 | Koninklijke Philips Electronics N. V. | Wideband signal transmission system |
JP2004521574A (en) | 2001-06-28 | 2004-07-15 | コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ | Narrowband audio signal transmission system with perceptual low frequency enhancement |
US6988066B2 (en) | 2001-10-04 | 2006-01-17 | At&T Corp. | Method of bandwidth extension for narrow-band speech |
US6895375B2 (en) | 2001-10-04 | 2005-05-17 | At&T Corp. | System for bandwidth extension of Narrow-band speech |
EP1440433B1 (en) | 2001-11-02 | 2005-05-04 | Matsushita Electric Industrial Co., Ltd. | Audio encoding and decoding device |
EP1444688B1 (en) | 2001-11-14 | 2006-08-16 | Matsushita Electric Industrial Co., Ltd. | Encoding device and decoding device |
US7630507B2 (en) * | 2002-01-28 | 2009-12-08 | Gn Resound A/S | Binaural compression system |
JP3646939B1 (en) | 2002-09-19 | 2005-05-11 | 松下電器産業株式会社 | Audio decoding apparatus and audio decoding method |
US20040175010A1 (en) | 2003-03-06 | 2004-09-09 | Silvia Allegro | Method for frequency transposition in a hearing device and a hearing device |
KR100917464B1 (en) | 2003-03-07 | 2009-09-14 | 삼성전자주식회사 | Method and apparatus for encoding/decoding digital data using bandwidth extension technology |
US7333930B2 (en) * | 2003-03-14 | 2008-02-19 | Agere Systems Inc. | Tonal analysis for perceptual audio coding using a compressed spectral representation |
US7333618B2 (en) | 2003-09-24 | 2008-02-19 | Harman International Industries, Incorporated | Ambient noise sound level compensation |
US7580531B2 (en) * | 2004-02-06 | 2009-08-25 | Cirrus Logic, Inc | Dynamic range reducing volume control |
-
2005
- 2005-04-20 US US11/110,556 patent/US7813931B2/en active Active
-
2006
- 2006-03-23 CA CA2604859A patent/CA2604859C/en active Active
- 2006-03-23 CN CNB2006800132165A patent/CN100557687C/en active Active
- 2006-03-23 JP JP2008506891A patent/JP4707739B2/en active Active
- 2006-03-23 KR KR1020077023430A patent/KR20070112848A/en not_active Application Discontinuation
- 2006-03-23 EP EP06721706.7A patent/EP1872365B1/en active Active
- 2006-03-23 WO PCT/CA2006/000440 patent/WO2006110990A1/en active Search and Examination
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4255620A (en) * | 1978-01-09 | 1981-03-10 | Vbc, Inc. | Method and apparatus for bandwidth reduction |
US4741039A (en) * | 1982-01-26 | 1988-04-26 | Metme Corporation | System for maximum efficient transfer of modulated energy |
US6577739B1 (en) * | 1997-09-19 | 2003-06-10 | University Of Iowa Research Foundation | Apparatus and methods for proportional audio compression and frequency shifting |
US20040264721A1 (en) | 2003-03-06 | 2004-12-30 | Phonak Ag | Method for frequency transposition and use of the method in a hearing device and a communication device |
WO2005015952A1 (en) * | 2003-08-11 | 2005-02-17 | Vast Audio Pty Ltd | Sound enhancement for hearing-impaired listeners |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101341246B1 (en) | 2009-02-04 | 2013-12-12 | 모토로라 모빌리티 엘엘씨 | Bandwidth extension method and apparatus for a modified discrete cosine transform audio coder |
Also Published As
Publication number | Publication date |
---|---|
CA2604859C (en) | 2013-07-02 |
US20060247922A1 (en) | 2006-11-02 |
US7813931B2 (en) | 2010-10-12 |
JP4707739B2 (en) | 2011-06-22 |
JP2008537174A (en) | 2008-09-11 |
CN100557687C (en) | 2009-11-04 |
EP1872365A4 (en) | 2012-01-18 |
CA2604859A1 (en) | 2006-10-26 |
EP1872365B1 (en) | 2019-10-02 |
KR20070112848A (en) | 2007-11-27 |
EP1872365A1 (en) | 2008-01-02 |
CN101164104A (en) | 2008-04-16 |
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