ATE195618T1 - Verfahren und einrichtung zur audiodatenkompression - Google Patents
Verfahren und einrichtung zur audiodatenkompressionInfo
- Publication number
- ATE195618T1 ATE195618T1 AT97200178T AT97200178T ATE195618T1 AT E195618 T1 ATE195618 T1 AT E195618T1 AT 97200178 T AT97200178 T AT 97200178T AT 97200178 T AT97200178 T AT 97200178T AT E195618 T1 ATE195618 T1 AT E195618T1
- Authority
- AT
- Austria
- Prior art keywords
- band
- block
- spectral coefficients
- word length
- quantized
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/665—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using psychoacoustic properties of the ear, e.g. masking effect
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/66—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission
- H04B1/667—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission for reducing bandwidth of signals; for improving efficiency of transmission using a division in frequency subbands
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP27616891A JP3200886B2 (ja) | 1991-09-30 | 1991-09-30 | オーディオ信号処理方法 |
JP03276169A JP3141451B2 (ja) | 1991-09-30 | 1991-09-30 | オーディオ信号処理方法 |
Publications (1)
Publication Number | Publication Date |
---|---|
ATE195618T1 true ATE195618T1 (de) | 2000-09-15 |
Family
ID=26551786
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT97200178T ATE195618T1 (de) | 1991-09-30 | 1992-09-28 | Verfahren und einrichtung zur audiodatenkompression |
AT92308815T ATE173366T1 (de) | 1991-09-30 | 1992-09-28 | Verfahren und anordnung zur audiodatenkompression |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AT92308815T ATE173366T1 (de) | 1991-09-30 | 1992-09-28 | Verfahren und anordnung zur audiodatenkompression |
Country Status (6)
Country | Link |
---|---|
US (2) | US5375189A (de) |
EP (2) | EP0786874B1 (de) |
AT (2) | ATE195618T1 (de) |
AU (1) | AU664386B2 (de) |
DE (2) | DE69227570T2 (de) |
HK (1) | HK1013536A1 (de) |
Families Citing this family (49)
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EP0506394A2 (de) * | 1991-03-29 | 1992-09-30 | Sony Corporation | Einrichtung zur Kodierung von digitalen Signalen |
DE69227570T2 (de) * | 1991-09-30 | 1999-04-22 | Sony Corp., Tokio/Tokyo | Verfahren und Anordnung zur Audiodatenkompression |
US5765127A (en) * | 1992-03-18 | 1998-06-09 | Sony Corp | High efficiency encoding method |
JP3153933B2 (ja) * | 1992-06-16 | 2001-04-09 | ソニー株式会社 | データ符号化装置及び方法並びにデータ復号化装置及び方法 |
JP3186292B2 (ja) * | 1993-02-02 | 2001-07-11 | ソニー株式会社 | 高能率符号化方法及び装置 |
JP3186307B2 (ja) * | 1993-03-09 | 2001-07-11 | ソニー株式会社 | 圧縮データ記録装置及び方法 |
JP3531177B2 (ja) * | 1993-03-11 | 2004-05-24 | ソニー株式会社 | 圧縮データ記録装置及び方法、圧縮データ再生方法 |
JP3173218B2 (ja) * | 1993-05-10 | 2001-06-04 | ソニー株式会社 | 圧縮データ記録方法及び装置、圧縮データ再生方法、並びに記録媒体 |
KR100395190B1 (ko) * | 1993-05-31 | 2003-08-21 | 소니 가부시끼 가이샤 | 신호 부호화 또는 복호화 장치, 및 신호 부호화 또는복호화 방법 |
WO1995001673A1 (en) * | 1993-06-30 | 1995-01-12 | Royal Melbourne Institute Of Technology | Filter windows for fourier transform signal compression |
WO1995001633A1 (fr) * | 1993-06-30 | 1995-01-12 | Sony Corporation | Procede et appareil de codage de signaux numeriques, procede et appareil de decodage des signaux codes, et support d'enregistrement des signaux codes |
EP0663739B1 (de) * | 1993-06-30 | 2001-08-22 | Sony Corporation | Digitales signalkodierungsgerät, dazugehöriges dekodiergerät und aufzeichnungsträger |
TW327223B (en) * | 1993-09-28 | 1998-02-21 | Sony Co Ltd | Methods and apparatus for encoding an input signal broken into frequency components, methods and apparatus for decoding such encoded signal |
US5737720A (en) * | 1993-10-26 | 1998-04-07 | Sony Corporation | Low bit rate multichannel audio coding methods and apparatus using non-linear adaptive bit allocation |
KR100269213B1 (ko) * | 1993-10-30 | 2000-10-16 | 윤종용 | 오디오신호의부호화방법 |
US5805770A (en) * | 1993-11-04 | 1998-09-08 | Sony Corporation | Signal encoding apparatus, signal decoding apparatus, recording medium, and signal encoding method |
EP0692881B1 (de) * | 1993-11-09 | 2005-06-15 | Sony Corporation | Quantisierungsvorrichtung und -verfahren, kodierer und kodierverfahren mit hoher effizienz, dekodierer und aufzeichnungsträger |
KR0134318B1 (ko) * | 1994-01-28 | 1998-04-29 | 김광호 | 채널간의 마스킹특성을 고려한 비트할당장치 및 그 방법과 복호화장치 |
WO1995021490A1 (fr) * | 1994-02-05 | 1995-08-10 | Sony Corporation | Procede et dispositif de codage de l'information et procede et dispositif de decodage de l'information |
US5608713A (en) * | 1994-02-09 | 1997-03-04 | Sony Corporation | Bit allocation of digital audio signal blocks by non-linear processing |
US5761636A (en) * | 1994-03-09 | 1998-06-02 | Motorola, Inc. | Bit allocation method for improved audio quality perception using psychoacoustic parameters |
US5732391A (en) * | 1994-03-09 | 1998-03-24 | Motorola, Inc. | Method and apparatus of reducing processing steps in an audio compression system using psychoacoustic parameters |
JP3277677B2 (ja) * | 1994-04-01 | 2002-04-22 | ソニー株式会社 | 信号符号化方法及び装置、信号記録媒体、信号伝送方法、並びに信号復号化方法及び装置 |
JP3186412B2 (ja) * | 1994-04-01 | 2001-07-11 | ソニー株式会社 | 情報符号化方法、情報復号化方法、及び情報伝送方法 |
JP3277682B2 (ja) * | 1994-04-22 | 2002-04-22 | ソニー株式会社 | 情報符号化方法及び装置、情報復号化方法及び装置、並びに情報記録媒体及び情報伝送方法 |
JP3250376B2 (ja) * | 1994-06-13 | 2002-01-28 | ソニー株式会社 | 情報符号化方法及び装置並びに情報復号化方法及び装置 |
JP3277705B2 (ja) | 1994-07-27 | 2002-04-22 | ソニー株式会社 | 情報符号化装置及び方法、並びに情報復号化装置及び方法 |
JP3341474B2 (ja) * | 1994-07-28 | 2002-11-05 | ソニー株式会社 | 情報符号化方法及び復号化方法、情報符号化装置及び復号化装置、並びに情報記録媒体 |
US6167093A (en) * | 1994-08-16 | 2000-12-26 | Sony Corporation | Method and apparatus for encoding the information, method and apparatus for decoding the information and method for information transmission |
JP3371590B2 (ja) * | 1994-12-28 | 2003-01-27 | ソニー株式会社 | 高能率符号化方法及び高能率復号化方法 |
US5682463A (en) * | 1995-02-06 | 1997-10-28 | Lucent Technologies Inc. | Perceptual audio compression based on loudness uncertainty |
JPH08274646A (ja) * | 1995-03-31 | 1996-10-18 | Sony Corp | ディジタル信号処理方法及び装置 |
EP0772925B1 (de) * | 1995-05-03 | 2004-07-14 | Sony Corporation | Nichtlineares quantisieren eines informationssignales |
US6002719A (en) * | 1995-12-22 | 1999-12-14 | Sony Corporation | Two way messaging system with non-real time voice compression and decompression |
JP3521596B2 (ja) * | 1996-01-30 | 2004-04-19 | ソニー株式会社 | 信号符号化方法 |
JP3189660B2 (ja) | 1996-01-30 | 2001-07-16 | ソニー株式会社 | 信号符号化方法 |
JP3318825B2 (ja) * | 1996-08-20 | 2002-08-26 | ソニー株式会社 | デジタル信号符号化処理方法、デジタル信号符号化処理装置、デジタル信号記録方法、デジタル信号記録装置、記録媒体、デジタル信号伝送方法及びデジタル信号伝送装置 |
JPH1084284A (ja) * | 1996-09-06 | 1998-03-31 | Sony Corp | 信号再生方法および装置 |
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 |
TW384434B (en) | 1997-03-31 | 2000-03-11 | Sony Corp | Encoding method, device therefor, decoding method, device therefor and recording medium |
JP3282661B2 (ja) * | 1997-05-16 | 2002-05-20 | ソニー株式会社 | 信号処理装置および方法 |
AUPP273298A0 (en) * | 1998-03-31 | 1998-04-23 | Lake Dsp Pty Limited | Room impulse response compression |
US6353807B1 (en) * | 1998-05-15 | 2002-03-05 | Sony Corporation | Information coding method and apparatus, code transform method and apparatus, code transform control method and apparatus, information recording method and apparatus, and program providing medium |
DE60214027T2 (de) * | 2001-11-14 | 2007-02-15 | Matsushita Electric Industrial Co., Ltd., Kadoma | Kodiervorrichtung und dekodiervorrichtung |
JP3963850B2 (ja) * | 2003-03-11 | 2007-08-22 | 富士通株式会社 | 音声区間検出装置 |
JP2006127647A (ja) * | 2004-10-29 | 2006-05-18 | Sharp Corp | 音声高速再生装置及び方法 |
CN102208188B (zh) * | 2011-07-13 | 2013-04-17 | 华为技术有限公司 | 音频信号编解码方法和设备 |
JP6680029B2 (ja) * | 2016-03-24 | 2020-04-15 | ヤマハ株式会社 | 音響処理方法および音響処理装置 |
US10339947B2 (en) | 2017-03-22 | 2019-07-02 | Immersion Networks, Inc. | System and method for processing audio data |
Family Cites Families (40)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4184049A (en) * | 1978-08-25 | 1980-01-15 | Bell Telephone Laboratories, Incorporated | Transform speech signal coding with pitch controlled adaptive quantizing |
US4535472A (en) * | 1982-11-05 | 1985-08-13 | At&T Bell Laboratories | Adaptive bit allocator |
US5128963A (en) * | 1985-01-31 | 1992-07-07 | Sony Corporation | 3-mode PCM/DPCM/APCM maximizing dynamic range |
US4809274A (en) * | 1986-09-19 | 1989-02-28 | M/A-Com Government Systems, Inc. | Digital audio companding and error conditioning |
DE3639753A1 (de) * | 1986-11-21 | 1988-06-01 | Inst Rundfunktechnik Gmbh | Verfahren zum uebertragen digitalisierter tonsignale |
NL8700985A (nl) * | 1987-04-27 | 1988-11-16 | Philips Nv | Systeem voor sub-band codering van een digitaal audiosignaal. |
US5142656A (en) * | 1989-01-27 | 1992-08-25 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
ATE116495T1 (de) * | 1989-01-27 | 1995-01-15 | Dolby Lab Licensing Corp | Transformationscodierer, -decodierer und - codierer/decodierer mit kurzer zeitverzögerung für audio-anwendungen hoher qualität. |
US5109417A (en) * | 1989-01-27 | 1992-04-28 | Dolby Laboratories Licensing Corporation | Low bit rate transform coder, decoder, and encoder/decoder for high-quality audio |
US5222189A (en) * | 1989-01-27 | 1993-06-22 | Dolby Laboratories Licensing Corporation | Low time-delay transform coder, decoder, and encoder/decoder for high-quality audio |
US5297236A (en) * | 1989-01-27 | 1994-03-22 | Dolby Laboratories Licensing Corporation | Low computational-complexity digital filter bank for encoder, decoder, and encoder/decoder |
US5479562A (en) * | 1989-01-27 | 1995-12-26 | Dolby Laboratories Licensing Corporation | Method and apparatus for encoding and decoding audio information |
US5357594A (en) * | 1989-01-27 | 1994-10-18 | Dolby Laboratories Licensing Corporation | Encoding and decoding using specially designed pairs of analysis and synthesis windows |
US5539829A (en) * | 1989-06-02 | 1996-07-23 | U.S. Philips Corporation | Subband coded digital transmission system using some composite signals |
EP0405591B1 (de) * | 1989-06-30 | 1997-10-01 | Nec Corporation | Variable Blocklängenkodierung für unterschiedliche Charakteristiken der Eingangsabtastwerte |
JP2844695B2 (ja) * | 1989-07-19 | 1999-01-06 | ソニー株式会社 | 信号符号化装置 |
US5115240A (en) * | 1989-09-26 | 1992-05-19 | Sony Corporation | Method and apparatus for encoding voice signals divided into a plurality of frequency bands |
JPH03117919A (ja) * | 1989-09-30 | 1991-05-20 | Sony Corp | ディジタル信号符号化装置 |
US5185800A (en) * | 1989-10-13 | 1993-02-09 | Centre National D'etudes Des Telecommunications | Bit allocation device for transformed digital audio broadcasting signals with adaptive quantization based on psychoauditive criterion |
US5040217A (en) * | 1989-10-18 | 1991-08-13 | At&T Bell Laboratories | Perceptual coding of audio signals |
JPH03132228A (ja) * | 1989-10-18 | 1991-06-05 | Victor Co Of Japan Ltd | 直交変換信号符号化復号化方式 |
JP2913731B2 (ja) * | 1990-03-07 | 1999-06-28 | ソニー株式会社 | ディジタルデータの高能率符号化方法 |
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 |
JP2861238B2 (ja) * | 1990-04-20 | 1999-02-24 | ソニー株式会社 | ディジタル信号符号化方法 |
JP2751564B2 (ja) * | 1990-05-25 | 1998-05-18 | ソニー株式会社 | ディジタル信号符号化装置 |
JP3033156B2 (ja) * | 1990-08-24 | 2000-04-17 | ソニー株式会社 | ディジタル信号符号化装置 |
HU213592B (en) * | 1991-03-29 | 1997-08-28 | Sony Corp | Coding methods for digital audio signals |
ZA921988B (en) * | 1991-03-29 | 1993-02-24 | Sony Corp | High efficiency digital data encoding and decoding apparatus |
EP0506394A2 (de) * | 1991-03-29 | 1992-09-30 | Sony Corporation | Einrichtung zur Kodierung von digitalen Signalen |
JP3134337B2 (ja) * | 1991-03-30 | 2001-02-13 | ソニー株式会社 | ディジタル信号符号化方法 |
JP3134338B2 (ja) * | 1991-03-30 | 2001-02-13 | ソニー株式会社 | ディジタル音声信号符号化方法 |
ATE210347T1 (de) * | 1991-08-02 | 2001-12-15 | Sony Corp | Digitaler kodierer mit dynamischer quantisierungsbitverteilung |
JP3178026B2 (ja) * | 1991-08-23 | 2001-06-18 | ソニー株式会社 | ディジタル信号符号化装置及び復号化装置 |
DE69227570T2 (de) * | 1991-09-30 | 1999-04-22 | Sony Corp., Tokio/Tokyo | Verfahren und Anordnung zur Audiodatenkompression |
JP3141450B2 (ja) * | 1991-09-30 | 2001-03-05 | ソニー株式会社 | オーディオ信号処理方法 |
US5349549A (en) * | 1991-09-30 | 1994-09-20 | Sony Corporation | Forward transform processing apparatus and inverse processing apparatus for modified discrete cosine transforms, and method of performing spectral and temporal analyses including simplified forward and inverse orthogonal transform processing |
JP3134455B2 (ja) * | 1992-01-29 | 2001-02-13 | ソニー株式会社 | 高能率符号化装置及び方法 |
JP3508146B2 (ja) * | 1992-09-11 | 2004-03-22 | ソニー株式会社 | ディジタル信号符号化復号化装置、ディジタル信号符号化装置及びディジタル信号復号化装置 |
JP3127600B2 (ja) * | 1992-09-11 | 2001-01-29 | ソニー株式会社 | ディジタル信号復号化装置及び方法 |
US5581654A (en) * | 1993-05-25 | 1996-12-03 | Sony Corporation | Method and apparatus for information encoding and decoding |
-
1992
- 1992-09-28 DE DE69227570T patent/DE69227570T2/de not_active Expired - Lifetime
- 1992-09-28 DE DE69231369T patent/DE69231369T2/de not_active Expired - Lifetime
- 1992-09-28 AT AT97200178T patent/ATE195618T1/de active
- 1992-09-28 EP EP97200178A patent/EP0786874B1/de not_active Expired - Lifetime
- 1992-09-28 EP EP92308815A patent/EP0535889B1/de not_active Expired - Lifetime
- 1992-09-28 AT AT92308815T patent/ATE173366T1/de active
- 1992-09-29 AU AU26049/92A patent/AU664386B2/en not_active Expired
- 1992-09-29 US US07/953,740 patent/US5375189A/en not_active Expired - Lifetime
-
1996
- 1996-12-18 US US08/767,840 patent/USRE36683E/en not_active Expired - Lifetime
-
1998
- 1998-12-22 HK HK98114865A patent/HK1013536A1/xx not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
DE69231369D1 (de) | 2000-09-21 |
DE69227570T2 (de) | 1999-04-22 |
DE69231369T2 (de) | 2001-03-29 |
US5375189A (en) | 1994-12-20 |
ATE173366T1 (de) | 1998-11-15 |
AU664386B2 (en) | 1995-11-16 |
EP0535889A2 (de) | 1993-04-07 |
EP0786874A2 (de) | 1997-07-30 |
EP0535889B1 (de) | 1998-11-11 |
HK1013536A1 (en) | 1999-08-27 |
AU2604992A (en) | 1993-04-01 |
EP0786874B1 (de) | 2000-08-16 |
DE69227570D1 (de) | 1998-12-17 |
EP0535889A3 (en) | 1994-11-09 |
EP0786874A3 (de) | 1997-12-29 |
USRE36683E (en) | 2000-05-02 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
UEP | Publication of translation of european patent specification |