IN2014MN01588A - - Google Patents
Info
- Publication number
- IN2014MN01588A IN2014MN01588A IN1588MUN2014A IN2014MN01588A IN 2014MN01588 A IN2014MN01588 A IN 2014MN01588A IN 1588MUN2014 A IN1588MUN2014 A IN 1588MUN2014A IN 2014MN01588 A IN2014MN01588 A IN 2014MN01588A
- Authority
- IN
- India
- Prior art keywords
- classification
- speech
- frame
- music
- classified
- Prior art date
Links
- 230000000694 effects Effects 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 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
- G10L17/00—Speaker identification or verification techniques
- G10L17/02—Preprocessing operations, e.g. segment selection; Pattern representation or modelling, e.g. based on linear discriminant analysis [LDA] or principal components; Feature selection or extraction
-
- 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
- G10L19/20—Vocoders using multiple modes using sound class specific coding, hybrid encoders or object based coding
-
- 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
- G10L19/02—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 spectral analysis, e.g. transform vocoders or subband vocoders
- G10L19/0212—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 spectral analysis, e.g. transform vocoders or subband vocoders using orthogonal transformation
-
- 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
- G10L19/08—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters
- G10L19/12—Determination or coding of the excitation function; Determination or coding of the long-term prediction parameters the excitation function being a code excitation, e.g. in code excited linear prediction [CELP] vocoders
-
- 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
- G10L19/173—Transcoding, i.e. converting between two coded representations avoiding cascaded coding-decoding
-
- 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
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/22—Mode decision, i.e. based on audio signal content versus external parameters
-
- 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
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered 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
- G10L25/00—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00
- G10L25/78—Detection of presence or absence of voice signals
- G10L25/81—Detection of presence or absence of voice signals for discriminating voice from music
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Computational Linguistics (AREA)
- Computer Vision & Pattern Recognition (AREA)
- Quality & Reliability (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US201261586374P | 2012-01-13 | 2012-01-13 | |
| US13/722,669 US9111531B2 (en) | 2012-01-13 | 2012-12-20 | Multiple coding mode signal classification |
| PCT/US2012/071217 WO2013106192A1 (en) | 2012-01-13 | 2012-12-21 | Multiple coding mode signal classification |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| IN2014MN01588A true IN2014MN01588A (th) | 2015-05-08 |
Family
ID=48780608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| IN1588MUN2014 IN2014MN01588A (th) | 2012-01-13 | 2012-12-21 |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US9111531B2 (th) |
| EP (1) | EP2803068B1 (th) |
| JP (1) | JP5964455B2 (th) |
| KR (2) | KR20170005514A (th) |
| CN (1) | CN104040626B (th) |
| BR (1) | BR112014017001B1 (th) |
| DK (1) | DK2803068T3 (th) |
| ES (1) | ES2576232T3 (th) |
| HU (1) | HUE027037T2 (th) |
| IN (1) | IN2014MN01588A (th) |
| SI (1) | SI2803068T1 (th) |
| WO (1) | WO2013106192A1 (th) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9589570B2 (en) * | 2012-09-18 | 2017-03-07 | Huawei Technologies Co., Ltd. | Audio classification based on perceptual quality for low or medium bit rates |
| CN108074579B (zh) * | 2012-11-13 | 2022-06-24 | 三星电子株式会社 | 用于确定编码模式的方法以及音频编码方法 |
| CN104347067B (zh) | 2013-08-06 | 2017-04-12 | 华为技术有限公司 | 一种音频信号分类方法和装置 |
| CN104424956B9 (zh) * | 2013-08-30 | 2022-11-25 | 中兴通讯股份有限公司 | 激活音检测方法和装置 |
| CN106256001B (zh) * | 2014-02-24 | 2020-01-21 | 三星电子株式会社 | 信号分类方法和装置以及使用其的音频编码方法和装置 |
| BR112016025850B1 (pt) * | 2014-05-08 | 2022-08-16 | Telefonaktiebolaget Lm Ericsson (Publ) | Métodos para codificar um sinal de áudio e para discriminação de sinal de áudio, codificador para codificação de um sinal de áudio, discriminador de sinal de áudio, dispositivo de comunicação, e, meio de armazenamento legível por computador |
| CN105336338B (zh) * | 2014-06-24 | 2017-04-12 | 华为技术有限公司 | 音频编码方法和装置 |
| CN104143335B (zh) * | 2014-07-28 | 2017-02-01 | 华为技术有限公司 | 音频编码方法及相关装置 |
| US9886963B2 (en) * | 2015-04-05 | 2018-02-06 | Qualcomm Incorporated | Encoder selection |
| CN104867492B (zh) * | 2015-05-07 | 2019-09-03 | 科大讯飞股份有限公司 | 智能交互系统及方法 |
| KR102398124B1 (ko) * | 2015-08-11 | 2022-05-17 | 삼성전자주식회사 | 음향 데이터의 적응적 처리 |
| US10186276B2 (en) * | 2015-09-25 | 2019-01-22 | Qualcomm Incorporated | Adaptive noise suppression for super wideband music |
| US10678828B2 (en) | 2016-01-03 | 2020-06-09 | Gracenote, Inc. | Model-based media classification service using sensed media noise characteristics |
| WO2017117234A1 (en) * | 2016-01-03 | 2017-07-06 | Gracenote, Inc. | Responding to remote media classification queries using classifier models and context parameters |
| JP6996185B2 (ja) * | 2017-09-15 | 2022-01-17 | 富士通株式会社 | 発話区間検出装置、発話区間検出方法及び発話区間検出用コンピュータプログラム |
| JP7651474B2 (ja) | 2019-04-18 | 2025-03-26 | ドルビー ラボラトリーズ ライセンシング コーポレイション | ダイアログ検出器 |
| CN114127844B (zh) * | 2021-10-21 | 2025-08-05 | 北京小米移动软件有限公司 | 一种信号编解码方法、装置、编码设备、解码设备及存储介质 |
| CN116149499B (zh) * | 2023-04-18 | 2023-08-11 | 深圳雷柏科技股份有限公司 | 用于鼠标的多模式切换控制电路及切换控制方法 |
Family Cites Families (39)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69232202T2 (de) * | 1991-06-11 | 2002-07-25 | Qualcomm, Inc. | Vocoder mit veraendlicher bitrate |
| 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 |
| US7072832B1 (en) * | 1998-08-24 | 2006-07-04 | Mindspeed Technologies, Inc. | System for speech encoding having an adaptive encoding arrangement |
| US6493665B1 (en) * | 1998-08-24 | 2002-12-10 | Conexant Systems, Inc. | Speech classification and parameter weighting used in codebook search |
| US7272556B1 (en) * | 1998-09-23 | 2007-09-18 | Lucent Technologies Inc. | Scalable and embedded codec for speech and audio signals |
| US6691084B2 (en) * | 1998-12-21 | 2004-02-10 | Qualcomm Incorporated | Multiple mode variable rate speech coding |
| JP2000267699A (ja) * | 1999-03-19 | 2000-09-29 | Nippon Telegr & Teleph Corp <Ntt> | 音響信号符号化方法および装置、そのプログラム記録媒体、および音響信号復号装置 |
| EP1132892B1 (en) * | 1999-08-23 | 2011-07-27 | Panasonic Corporation | Speech encoding and decoding system |
| US6604070B1 (en) * | 1999-09-22 | 2003-08-05 | Conexant Systems, Inc. | System of encoding and decoding speech signals |
| US6625226B1 (en) * | 1999-12-03 | 2003-09-23 | Allen Gersho | Variable bit rate coder, and associated method, for a communication station operable in a communication system |
| US6697776B1 (en) * | 2000-07-31 | 2004-02-24 | Mindspeed Technologies, Inc. | Dynamic signal detector system and method |
| US6694293B2 (en) | 2001-02-13 | 2004-02-17 | Mindspeed Technologies, Inc. | Speech coding system with a music classifier |
| US6785645B2 (en) | 2001-11-29 | 2004-08-31 | Microsoft Corporation | Real-time speech and music classifier |
| US6829579B2 (en) * | 2002-01-08 | 2004-12-07 | Dilithium Networks, Inc. | Transcoding method and system between CELP-based speech codes |
| US7657427B2 (en) * | 2002-10-11 | 2010-02-02 | Nokia Corporation | Methods and devices for source controlled variable bit-rate wideband speech coding |
| US7363218B2 (en) * | 2002-10-25 | 2008-04-22 | Dilithium Networks Pty. Ltd. | Method and apparatus for fast CELP parameter mapping |
| FI118834B (fi) * | 2004-02-23 | 2008-03-31 | Nokia Corp | Audiosignaalien luokittelu |
| DE602004025517D1 (de) * | 2004-05-17 | 2010-03-25 | Nokia Corp | Audiocodierung mit verschiedenen codierungsrahmenlängen |
| US8010350B2 (en) | 2006-08-03 | 2011-08-30 | Broadcom Corporation | Decimated bisectional pitch refinement |
| CN1920947B (zh) * | 2006-09-15 | 2011-05-11 | 清华大学 | 用于低比特率音频编码的语音/音乐检测器 |
| CN101197130B (zh) * | 2006-12-07 | 2011-05-18 | 华为技术有限公司 | 声音活动检测方法和声音活动检测器 |
| KR100964402B1 (ko) * | 2006-12-14 | 2010-06-17 | 삼성전자주식회사 | 오디오 신호의 부호화 모드 결정 방법 및 장치와 이를 이용한 오디오 신호의 부호화/복호화 방법 및 장치 |
| KR100883656B1 (ko) | 2006-12-28 | 2009-02-18 | 삼성전자주식회사 | 오디오 신호의 분류 방법 및 장치와 이를 이용한 오디오신호의 부호화/복호화 방법 및 장치 |
| CN101226744B (zh) * | 2007-01-19 | 2011-04-13 | 华为技术有限公司 | 语音解码器中实现语音解码的方法及装置 |
| KR100925256B1 (ko) * | 2007-05-03 | 2009-11-05 | 인하대학교 산학협력단 | 음성 및 음악을 실시간으로 분류하는 방법 |
| CN101393741A (zh) * | 2007-09-19 | 2009-03-25 | 中兴通讯股份有限公司 | 一种宽带音频编解码器中的音频信号分类装置及分类方法 |
| CN101399039B (zh) * | 2007-09-30 | 2011-05-11 | 华为技术有限公司 | 一种确定非噪声音频信号类别的方法及装置 |
| CN101221766B (zh) * | 2008-01-23 | 2011-01-05 | 清华大学 | 音频编码器切换的方法 |
| CN101236742B (zh) * | 2008-03-03 | 2011-08-10 | 中兴通讯股份有限公司 | 音乐/非音乐的实时检测方法和装置 |
| CN101965612B (zh) * | 2008-03-03 | 2012-08-29 | Lg电子株式会社 | 用于处理音频信号的方法和装置 |
| US8768690B2 (en) * | 2008-06-20 | 2014-07-01 | Qualcomm Incorporated | Coding scheme selection for low-bit-rate applications |
| EP2144230A1 (en) * | 2008-07-11 | 2010-01-13 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Low bitrate audio encoding/decoding scheme having cascaded switches |
| WO2010003521A1 (en) * | 2008-07-11 | 2010-01-14 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Method and discriminator for classifying different segments of a signal |
| KR101261677B1 (ko) * | 2008-07-14 | 2013-05-06 | 광운대학교 산학협력단 | 음성/음악 통합 신호의 부호화/복호화 장치 |
| CN101751920A (zh) * | 2008-12-19 | 2010-06-23 | 数维科技（北京）有限公司 | 基于再次分类的音频分类装置及其实现方法 |
| CN101814289A (zh) * | 2009-02-23 | 2010-08-25 | 数维科技（北京）有限公司 | 低码率dra数字音频多声道编码方法及其系统 |
| JP5519230B2 (ja) * | 2009-09-30 | 2014-06-11 | パナソニック株式会社 | オーディオエンコーダ及び音信号処理システム |
| CN102237085B (zh) * | 2010-04-26 | 2013-08-14 | 华为技术有限公司 | 音频信号的分类方法及装置 |
| EP3686888B1 (en) | 2011-02-15 | 2025-04-02 | VoiceAge EVS LLC | Device and method for quantizing the gains of the adaptive and fixed contributions of the excitation in a celp codec |
-
2012
- 2012-12-20 US US13/722,669 patent/US9111531B2/en active Active
- 2012-12-21 CN CN201280066779.6A patent/CN104040626B/zh active Active
- 2012-12-21 SI SI201230593A patent/SI2803068T1/sl unknown
- 2012-12-21 BR BR112014017001-0A patent/BR112014017001B1/pt active IP Right Grant
- 2012-12-21 JP JP2014552206A patent/JP5964455B2/ja active Active
- 2012-12-21 IN IN1588MUN2014 patent/IN2014MN01588A/en unknown
- 2012-12-21 HU HUE12810018A patent/HUE027037T2/en unknown
- 2012-12-21 KR KR1020177000172A patent/KR20170005514A/ko not_active Ceased
- 2012-12-21 DK DK12810018.7T patent/DK2803068T3/en active
- 2012-12-21 WO PCT/US2012/071217 patent/WO2013106192A1/en not_active Ceased
- 2012-12-21 EP EP12810018.7A patent/EP2803068B1/en active Active
- 2012-12-21 KR KR1020147022400A patent/KR20140116487A/ko not_active Ceased
- 2012-12-21 ES ES12810018.7T patent/ES2576232T3/es active Active
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013106192A1 (en) | 2013-07-18 |
| HUE027037T2 (en) | 2016-08-29 |
| JP2015507222A (ja) | 2015-03-05 |
| EP2803068B1 (en) | 2016-04-13 |
| SI2803068T1 (sl) | 2016-07-29 |
| CN104040626A (zh) | 2014-09-10 |
| DK2803068T3 (en) | 2016-05-23 |
| BR112014017001A8 (pt) | 2017-07-04 |
| KR20170005514A (ko) | 2017-01-13 |
| US20130185063A1 (en) | 2013-07-18 |
| EP2803068A1 (en) | 2014-11-19 |
| CN104040626B (zh) | 2017-08-11 |
| BR112014017001A2 (pt) | 2017-06-13 |
| BR112014017001B1 (pt) | 2020-12-22 |
| ES2576232T3 (es) | 2016-07-06 |
| JP5964455B2 (ja) | 2016-08-03 |
| US9111531B2 (en) | 2015-08-18 |
| KR20140116487A (ko) | 2014-10-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| IN2014MN01588A (th) | ||
| Lee et al. | Does more information in stock price lead to greater or smaller idiosyncratic return volatility? | |
| WO2014168934A3 (en) | Systems and methods for generating a digital output signal in a digital microphone system | |
| PH12015501587B1 (en) | Signaling audio rendering information in a bitstream | |
| MX351359B (es) | Codificador, decodificador y métodos para la transformación de amplicación por acercamiento dependiente de señales en la codificación espacial de objetos de audio. | |
| MX2018009140A (es) | Decodificador de audio multicanal, codificador de audio multicanal, métodos y programa de computadora usando un ajuste en base a señales residuales de una contribución de una señal decorrelacionada. | |
| EP4614498A3 (en) | Device and method for reducing quantization noise in a time-domain decoder | |
| EP4379715A3 (en) | Loudness adjustment for downmixed audio content | |
| MX2009007412A (es) | Decodificador de audio. | |
| EP4465662A3 (en) | Compression of decomposed representations of a sound field | |
| ATE527834T1 (de) | Ökonomische lautheitmessung von codiertem audio | |
| WO2010003109A3 (en) | Speech recognition with parallel recognition tasks | |
| EP2846229A3 (en) | Systems and methods for generating haptic effects associated with audio signals | |
| IN2015MN01766A (th) | ||
| MY171188A (en) | Systems and methods of performing filtering for gain determination | |
| GB2526727A (en) | Systems and methods for using a speaker as a microphone in a mobile device | |
| MY187728A (en) | Method and system for encoding audio data with adaptive low frequency compensation | |
| MY173561A (en) | Audio signal classification method and apparatus | |
| WO2010041131A8 (en) | Associating source information with phonetic indices | |
| MY165327A (en) | Apparatus,method and computer program for providing one or more adjusted parameters for provision of an upmix signal representation on the basis of a downmix signal representation and a parametric side information associated with the downmix signal representation,using an average value | |
| IN2015MN01874A (th) | ||
| MX352154B (es) | Decisión sorda/sonora para procesamiento de voz. | |
| MX2016004923A (es) | Concepto para codificar una señal de audio y decodificar una señal de audio usando informacion de conformacion espectral relacionada con la voz. | |
| MX2012010440A (es) | Procesador de señal, proveedor de ventana, señal de medios codificada, metodo para procesar una señal y metodo para proporcionar una ventana. | |
| EP4358085A3 (en) | Signal processing device, method, and program |