KR20010102017A - 음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 - Google Patents
음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 Download PDFInfo
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- KR20010102017A KR20010102017A KR1020017010082A KR20017010082A KR20010102017A KR 20010102017 A KR20010102017 A KR 20010102017A KR 1020017010082 A KR1020017010082 A KR 1020017010082A KR 20017010082 A KR20017010082 A KR 20017010082A KR 20010102017 A KR20010102017 A KR 20010102017A
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- speech
- signal
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- 230000000694 effects Effects 0.000 title abstract description 11
- 238000000034 method Methods 0.000 claims abstract description 24
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Classifications
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- 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
- G10L21/0208—Noise filtering
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Acoustics & Sound (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Quality & Reliability (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Control Of Amplification And Gain Control (AREA)
- Machine Translation (AREA)
- Telephone Function (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Abstract
Description
Claims (4)
- 음성 코딩에 사용되는 음성 신호 개선 방법으로서,상기 음성 신호는 배경 노이즈와 뚜렷한 음성(articulated speech)의 기간들을 나타내며, 상기 음성 신호는 복수의 데이타 프레임으로 분리된, 상기 음성 신호 개선 방법에 있어서,복수의 서브 밴드 음성 신호를 발생하기 위하여, 데이타 프레임의 음성 신호에 변환을 적용하는 단계와;상기 데이타 프레임에 대응하는 음성 신호가 뚜렷한 음성을 나타내는지를 결정하는 단계와;개개의 이득값들을 개개의 서브 밴드 음성 신호들에 적용하는 단계로서, 뚜렷한 음성을 나타내는 것으로 결정된 프레임에 대한 최저 허용 이득값이 배경 노이즈만을 나타내는 것으로 결정된 프레임에 대한 최저 허용 이득값보다 작은, 상기 개개의 이득값들을 개개의 서브 밴드 음성 신호들에 적용하는 단계와;상기 복수의 서브 밴드 음성 신호들에 역변환을 적용하는 단계를 포함하는 음성 신호 개선 방법.
- 제 1 항에 있어서,상기 개개의 이득값들을 결정하는 단계를 더 포함하며,상기 최저 허용 이득값은 최저 허용 이전 신호대잡음비의 함수인, 음성 신호개선 방법.
- 음성 코딩에 사용되는 신호 개선 방법으로서,상기 신호는 데이타 프레임들로 분할되고, 배경 노이즈 정보와 뚜렷한 음성 정보의 기간들을 나타내는, 상기 신호 개선 방법에 있어서,데이타 프레임의 상기 신호가 뚜렷한 음성 정보를 나타내는지를 결정하는 단계와;상기 신호에 이득값을 적용하는 단계로서, 뚜렷한 음성을 나타내는 것으로 결정된 프레임에 대한 최저 허용 이득값이 배경 노이즈만을 나타내는 것으로 결정된 프레임에 대한 최저 허용 이득값보다 작은, 상기 신호에 이득값을 적용하는 단계를 포함하는 신호 개선 방법.
- 제 3 항에 있어서,상기 이득값을 결정하는 단계를 더 포함하며,상기 최저 허용 이득값은 최저 허용 이전 신호대 잡음비의 함수인, 신호 개선 방법.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11927999P | 1999-02-09 | 1999-02-09 | |
US60/119,279 | 1999-02-09 | ||
US09/499,985 US6604071B1 (en) | 1999-02-09 | 2000-02-08 | Speech enhancement with gain limitations based on speech activity |
US09/499,985 | 2000-02-08 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020067019836A Division KR100828962B1 (ko) | 1999-02-09 | 2000-02-09 | 음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010102017A true KR20010102017A (ko) | 2001-11-15 |
KR100752529B1 KR100752529B1 (ko) | 2007-08-29 |
Family
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Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
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KR1020067019836A KR100828962B1 (ko) | 1999-02-09 | 2000-02-09 | 음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 |
KR1020017010082A KR100752529B1 (ko) | 1999-02-09 | 2000-02-09 | 음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020067019836A KR100828962B1 (ko) | 1999-02-09 | 2000-02-09 | 음성 활동에 기초한 이득 제한을 이용하는 음성 개선 방법 |
Country Status (12)
Country | Link |
---|---|
US (2) | US6604071B1 (ko) |
EP (2) | EP1157377B1 (ko) |
JP (2) | JP4173641B2 (ko) |
KR (2) | KR100828962B1 (ko) |
AT (1) | ATE357724T1 (ko) |
BR (1) | BR0008033A (ko) |
CA (2) | CA2476248C (ko) |
DE (1) | DE60034026T2 (ko) |
DK (1) | DK1157377T3 (ko) |
ES (1) | ES2282096T3 (ko) |
HK (1) | HK1098241A1 (ko) |
WO (1) | WO2000048171A1 (ko) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1143229A1 (en) * | 1998-12-07 | 2001-10-10 | Mitsubishi Denki Kabushiki Kaisha | Sound decoding device and sound decoding method |
GB2349259B (en) * | 1999-04-23 | 2003-11-12 | Canon Kk | Speech processing apparatus and method |
FR2797343B1 (fr) * | 1999-08-04 | 2001-10-05 | Matra Nortel Communications | Procede et dispositif de detection d'activite vocale |
KR100304666B1 (ko) * | 1999-08-28 | 2001-11-01 | 윤종용 | 음성 향상 방법 |
JP3566197B2 (ja) | 2000-08-31 | 2004-09-15 | 松下電器産業株式会社 | 雑音抑圧装置及び雑音抑圧方法 |
JP4282227B2 (ja) * | 2000-12-28 | 2009-06-17 | 日本電気株式会社 | ノイズ除去の方法及び装置 |
KR20030009516A (ko) * | 2001-04-09 | 2003-01-29 | 코닌클리즈케 필립스 일렉트로닉스 엔.브이. | 스피치 향상 장치 |
DE10150519B4 (de) * | 2001-10-12 | 2014-01-09 | Hewlett-Packard Development Co., L.P. | Verfahren und Anordnung zur Sprachverarbeitung |
US7155385B2 (en) * | 2002-05-16 | 2006-12-26 | Comerica Bank, As Administrative Agent | Automatic gain control for adjusting gain during non-speech portions |
US7146316B2 (en) * | 2002-10-17 | 2006-12-05 | Clarity Technologies, Inc. | Noise reduction in subbanded speech signals |
JP4336759B2 (ja) | 2002-12-17 | 2009-09-30 | 日本電気株式会社 | 光分散フィルタ |
JP4583781B2 (ja) * | 2003-06-12 | 2010-11-17 | アルパイン株式会社 | 音声補正装置 |
DE60303278T2 (de) * | 2003-11-27 | 2006-07-20 | Alcatel | Vorrichtung zur Verbesserung der Spracherkennung |
ES2294506T3 (es) * | 2004-05-14 | 2008-04-01 | Loquendo S.P.A. | Reduccion de ruido para el reconocimiento automatico del habla. |
US7649988B2 (en) * | 2004-06-15 | 2010-01-19 | Acoustic Technologies, Inc. | Comfort noise generator using modified Doblinger noise estimate |
KR100677126B1 (ko) * | 2004-07-27 | 2007-02-02 | 삼성전자주식회사 | 레코더 기기의 잡음 제거 장치 및 그 방법 |
GB2429139B (en) * | 2005-08-10 | 2010-06-16 | Zarlink Semiconductor Inc | A low complexity noise reduction method |
KR100751927B1 (ko) * | 2005-11-11 | 2007-08-24 | 고려대학교 산학협력단 | 멀티음성채널 음성신호의 적응적 잡음제거를 위한 전처리 방법 및 장치 |
US7778828B2 (en) | 2006-03-15 | 2010-08-17 | Sasken Communication Technologies Ltd. | Method and system for automatic gain control of a speech signal |
JP4836720B2 (ja) * | 2006-09-07 | 2011-12-14 | 株式会社東芝 | ノイズサプレス装置 |
US20080208575A1 (en) * | 2007-02-27 | 2008-08-28 | Nokia Corporation | Split-band encoding and decoding of an audio signal |
US7885810B1 (en) | 2007-05-10 | 2011-02-08 | Mediatek Inc. | Acoustic signal enhancement method and apparatus |
US20090010453A1 (en) * | 2007-07-02 | 2009-01-08 | Motorola, Inc. | Intelligent gradient noise reduction system |
BRPI0816792B1 (pt) * | 2007-09-12 | 2020-01-28 | Dolby Laboratories Licensing Corp | método para melhorar componentes de fala de um sinal de áudio composto de componentes de fala e ruído e aparelho para realizar o mesmo |
CN100550133C (zh) | 2008-03-20 | 2009-10-14 | 华为技术有限公司 | 一种语音信号处理方法及装置 |
US8645129B2 (en) * | 2008-05-12 | 2014-02-04 | Broadcom Corporation | Integrated speech intelligibility enhancement system and acoustic echo canceller |
US9197181B2 (en) * | 2008-05-12 | 2015-11-24 | Broadcom Corporation | Loudness enhancement system and method |
KR20090122143A (ko) * | 2008-05-23 | 2009-11-26 | 엘지전자 주식회사 | 오디오 신호 처리 방법 및 장치 |
US8914282B2 (en) * | 2008-09-30 | 2014-12-16 | Alon Konchitsky | Wind noise reduction |
US20100082339A1 (en) * | 2008-09-30 | 2010-04-01 | Alon Konchitsky | Wind Noise Reduction |
KR101622950B1 (ko) * | 2009-01-28 | 2016-05-23 | 삼성전자주식회사 | 오디오 신호의 부호화 및 복호화 방법 및 그 장치 |
KR101211059B1 (ko) | 2010-12-21 | 2012-12-11 | 전자부품연구원 | 보컬 멜로디 강화 장치 및 방법 |
US9210506B1 (en) * | 2011-09-12 | 2015-12-08 | Audyssey Laboratories, Inc. | FFT bin based signal limiting |
GB2523984B (en) | 2013-12-18 | 2017-07-26 | Cirrus Logic Int Semiconductor Ltd | Processing received speech data |
JP6361156B2 (ja) * | 2014-02-10 | 2018-07-25 | 沖電気工業株式会社 | 雑音推定装置、方法及びプログラム |
Family Cites Families (21)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3118473A1 (de) | 1981-05-09 | 1982-11-25 | TE KA DE Felten & Guilleaume Fernmeldeanlagen GmbH, 8500 Nürnberg | Verfahren zur aufbereitung elektrischer signale mit einer digitalen filteranordnung |
US4956808A (en) * | 1985-01-07 | 1990-09-11 | International Business Machines Corporation | Real time data transformation and transmission overlapping device |
JP2884163B2 (ja) * | 1987-02-20 | 1999-04-19 | 富士通株式会社 | 符号化伝送装置 |
US4811404A (en) * | 1987-10-01 | 1989-03-07 | Motorola, Inc. | Noise suppression system |
IL84948A0 (en) | 1987-12-25 | 1988-06-30 | D S P Group Israel Ltd | Noise reduction system |
GB8801014D0 (en) * | 1988-01-18 | 1988-02-17 | British Telecomm | Noise reduction |
US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
US5297236A (en) * | 1989-01-27 | 1994-03-22 | Dolby Laboratories Licensing Corporation | Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder |
KR100220862B1 (ko) * | 1989-01-27 | 1999-09-15 | 쥬더 에드 에이. | 고품질 오디오용 저속 비트 변환 코더, 디코더 및 인코더/디코더 |
DE3902948A1 (de) * | 1989-02-01 | 1990-08-09 | Telefunken Fernseh & Rundfunk | Verfahren zur uebertragung eines signals |
CN1062963C (zh) * | 1990-04-12 | 2001-03-07 | 多尔拜实验特许公司 | 用于产生高质量声音信号的解码器和编码器 |
JPH08506427A (ja) * | 1993-02-12 | 1996-07-09 | ブリテイッシュ・テレコミュニケーションズ・パブリック・リミテッド・カンパニー | 雑音減少 |
US5572621A (en) * | 1993-09-21 | 1996-11-05 | U.S. Philips Corporation | Speech signal processing device with continuous monitoring of signal-to-noise ratio |
US5485515A (en) | 1993-12-29 | 1996-01-16 | At&T Corp. | Background noise compensation in a telephone network |
US5715365A (en) * | 1994-04-04 | 1998-02-03 | Digital Voice Systems, Inc. | Estimation of excitation parameters |
JPH08237130A (ja) * | 1995-02-23 | 1996-09-13 | Sony Corp | 信号符号化方法及び装置、並びに記録媒体 |
US5706395A (en) * | 1995-04-19 | 1998-01-06 | Texas Instruments Incorporated | Adaptive weiner filtering using a dynamic suppression factor |
FI100840B (fi) | 1995-12-12 | 1998-02-27 | Nokia Mobile Phones Ltd | Kohinanvaimennin ja menetelmä taustakohinan vaimentamiseksi kohinaises ta puheesta sekä matkaviestin |
WO1998006090A1 (en) * | 1996-08-02 | 1998-02-12 | Universite De Sherbrooke | Speech/audio coding with non-linear spectral-amplitude transformation |
US5903866A (en) * | 1997-03-10 | 1999-05-11 | Lucent Technologies Inc. | Waveform interpolation speech coding using splines |
US6351731B1 (en) * | 1998-08-21 | 2002-02-26 | Polycom, Inc. | Adaptive filter featuring spectral gain smoothing and variable noise multiplier for noise reduction, and method therefor |
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2000
- 2000-02-08 US US09/499,985 patent/US6604071B1/en not_active Expired - Lifetime
- 2000-02-09 KR KR1020067019836A patent/KR100828962B1/ko active IP Right Grant
- 2000-02-09 AT AT00913413T patent/ATE357724T1/de not_active IP Right Cessation
- 2000-02-09 DE DE60034026T patent/DE60034026T2/de not_active Expired - Lifetime
- 2000-02-09 KR KR1020017010082A patent/KR100752529B1/ko active IP Right Grant
- 2000-02-09 CA CA002476248A patent/CA2476248C/en not_active Expired - Lifetime
- 2000-02-09 ES ES00913413T patent/ES2282096T3/es not_active Expired - Lifetime
- 2000-02-09 EP EP00913413A patent/EP1157377B1/en not_active Expired - Lifetime
- 2000-02-09 JP JP2000599013A patent/JP4173641B2/ja not_active Expired - Fee Related
- 2000-02-09 CA CA002362584A patent/CA2362584C/en not_active Expired - Lifetime
- 2000-02-09 DK DK00913413T patent/DK1157377T3/da active
- 2000-02-09 WO PCT/US2000/003372 patent/WO2000048171A1/en active IP Right Grant
- 2000-02-09 BR BR0008033-0A patent/BR0008033A/pt not_active Application Discontinuation
- 2000-02-09 EP EP06118327.3A patent/EP1724758B1/en not_active Expired - Lifetime
-
2001
- 2001-10-02 US US09/969,405 patent/US6542864B2/en not_active Expired - Lifetime
-
2006
- 2006-09-14 JP JP2006249135A patent/JP4512574B2/ja not_active Expired - Lifetime
-
2007
- 2007-04-24 HK HK07104366.1A patent/HK1098241A1/zh not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
CA2362584A1 (en) | 2000-08-17 |
HK1098241A1 (zh) | 2007-07-13 |
US20020029141A1 (en) | 2002-03-07 |
ATE357724T1 (de) | 2007-04-15 |
DE60034026T2 (de) | 2007-12-13 |
DK1157377T3 (da) | 2007-04-10 |
JP2007004202A (ja) | 2007-01-11 |
EP1157377B1 (en) | 2007-03-21 |
JP4512574B2 (ja) | 2010-07-28 |
CA2476248C (en) | 2009-10-06 |
US6542864B2 (en) | 2003-04-01 |
CA2362584C (en) | 2008-01-08 |
KR100828962B1 (ko) | 2008-05-14 |
JP4173641B2 (ja) | 2008-10-29 |
KR100752529B1 (ko) | 2007-08-29 |
DE60034026D1 (de) | 2007-05-03 |
ES2282096T3 (es) | 2007-10-16 |
EP1724758A3 (en) | 2007-08-01 |
BR0008033A (pt) | 2002-01-22 |
EP1724758A2 (en) | 2006-11-22 |
EP1157377A1 (en) | 2001-11-28 |
WO2000048171A8 (en) | 2001-04-05 |
US6604071B1 (en) | 2003-08-05 |
WO2000048171A1 (en) | 2000-08-17 |
JP2002536707A (ja) | 2002-10-29 |
CA2476248A1 (en) | 2000-08-17 |
KR20060110377A (ko) | 2006-10-24 |
EP1724758B1 (en) | 2016-04-27 |
WO2000048171A9 (en) | 2001-09-20 |
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