AR087401A1 - Receptor de radio fm estereo mejorado mediante el uso de estereo parametrico - Google Patents

Receptor de radio fm estereo mejorado mediante el uso de estereo parametrico

Info

Publication number
AR087401A1
AR087401A1 ARP120102790A ARP120102790A AR087401A1 AR 087401 A1 AR087401 A1 AR 087401A1 AR P120102790 A ARP120102790 A AR P120102790A AR P120102790 A ARP120102790 A AR P120102790A AR 087401 A1 AR087401 A1 AR 087401A1
Authority
AR
Argentina
Prior art keywords
stereo
decoder
parametric
parametric stereo
signal
Prior art date
Application number
ARP120102790A
Other languages
English (en)
Original Assignee
Dolby Int Ab
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Dolby Int Ab filed Critical Dolby Int Ab
Publication of AR087401A1 publication Critical patent/AR087401A1/es

Links

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
    • G10L19/008—Multichannel audio signal coding or decoding using interchannel correlation to reduce redundancy, e.g. joint-stereo, intensity-coding or matrixing
    • 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
    • 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
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/1646—Circuits adapted for the reception of stereophonic signals
    • H04B1/1661—Reduction of noise by manipulation of the baseband composite stereophonic signal or the decoded left and right channels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04H—BROADCAST COMMUNICATION
    • H04H40/00—Arrangements specially adapted for receiving broadcast information
    • H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
    • H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
    • H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
    • H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Mathematical Physics (AREA)
  • Stereo-Broadcasting Methods (AREA)
  • Noise Elimination (AREA)

Abstract

La presente se relaciona con un aparato (1) para mejorar una señal de audio estéreo de un receptor de radio FM estéreo (10). Se sugiere emplear componentes de un decodificador estándar HE-ACC v2 (40) en dicho aparato (1) para recuperar eficazmente la señal de audio estéreo (L’, R’) mientras también se exhibe buena calidad de la señal. A tal fin, se cuantizarán parámetros estéreo paramétricos (15) y se presentarán a dicho decodificador (40) conjuntamente con una señal mono con configuración descendente (25). El decodificador (40) puede luego recuperar fácilmente los parámetros estéreo paramétricos (15) al decuantizarlos mediante una simple tabla de consulta, y finalmente crear la señal de salida estéreo (L’, R’) a partir de los parámetros estéreo paramétricos decuantizados y la señal mono con conversión descendente (25). El aparato (1) además incluye una etapa de estimación de parámetros (5) que otra vez puede realizarse sobre la base de los componentes del codificador estándar HE-ACC v2 (65). Después de estimar los parámetros estéreo paramétricos (15) y generar la señal mono con configuración descendente (25), el codificador (65) no utilizará codificación adicional a excepción de la codificación PS ya realizada. Un aparato (1) de acuerdo con la presente incluye, por lo tanto, de manera ventajosa componentes de decodificador (40) y/o codificador (65) de un códec estándar HE-ACC v2 utilizando sus capacidades para el procesamiento de parámetros estéreo paramétricos.
ARP120102790A 2011-08-04 2012-07-31 Receptor de radio fm estereo mejorado mediante el uso de estereo parametrico AR087401A1 (es)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP11176523 2011-08-04
US201161551103P 2011-10-25 2011-10-25

Publications (1)

Publication Number Publication Date
AR087401A1 true AR087401A1 (es) 2014-03-19

Family

ID=47628648

Family Applications (1)

Application Number Title Priority Date Filing Date
ARP120102790A AR087401A1 (es) 2011-08-04 2012-07-31 Receptor de radio fm estereo mejorado mediante el uso de estereo parametrico

Country Status (7)

Country Link
US (1) US9299355B2 (es)
EP (1) EP2740222B1 (es)
JP (1) JP5775637B2 (es)
CN (1) CN103718466B (es)
AR (1) AR087401A1 (es)
PL (1) PL2740222T3 (es)
WO (1) WO2013017435A1 (es)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI433137B (zh) 2009-09-10 2014-04-01 Dolby Int Ab 藉由使用參數立體聲改良調頻立體聲收音機之聲頻信號之設備與方法
TWI618050B (zh) * 2013-02-14 2018-03-11 杜比實驗室特許公司 用於音訊處理系統中之訊號去相關的方法及設備
WO2014126688A1 (en) 2013-02-14 2014-08-21 Dolby Laboratories Licensing Corporation Methods for audio signal transient detection and decorrelation control
EP2956935B1 (en) 2013-02-14 2017-01-04 Dolby Laboratories Licensing Corporation Controlling the inter-channel coherence of upmixed audio signals
US10224045B2 (en) * 2017-05-11 2019-03-05 Qualcomm Incorporated Stereo parameters for stereo decoding

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1500084B1 (en) 2002-04-22 2008-01-23 Koninklijke Philips Electronics N.V. Parametric representation of spatial audio
US8843378B2 (en) 2004-06-30 2014-09-23 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Multi-channel synthesizer and method for generating a multi-channel output signal
CN1922655A (zh) 2004-07-06 2007-02-28 松下电器产业株式会社 音频信号编码装置、音频信号解码装置、方法及程序
TWI393121B (zh) * 2004-08-25 2013-04-11 Dolby Lab Licensing Corp 處理一組n個聲音信號之方法與裝置及與其相關聯之電腦程式
US7983922B2 (en) 2005-04-15 2011-07-19 Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. Apparatus and method for generating multi-channel synthesizer control signal and apparatus and method for multi-channel synthesizing
ATE378675T1 (de) 2005-04-19 2007-11-15 Coding Tech Ab Energieabhängige quantisierung für effiziente kodierung räumlicher audioparameter
EP1905034B1 (en) 2005-07-19 2011-06-01 Electronics and Telecommunications Research Institute Virtual source location information based channel level difference quantization and dequantization
CN101518103B (zh) * 2006-09-14 2016-03-23 皇家飞利浦电子股份有限公司 多通道信号的甜点操纵
WO2008035949A1 (en) 2006-09-22 2008-03-27 Samsung Electronics Co., Ltd. Method, medium, and system encoding and/or decoding audio signals by using bandwidth extension and stereo coding
US8185381B2 (en) * 2007-07-19 2012-05-22 Qualcomm Incorporated Unified filter bank for performing signal conversions
CN101604983B (zh) 2008-06-12 2013-04-24 华为技术有限公司 编解码装置、系统及其方法
US20110137661A1 (en) 2008-08-08 2011-06-09 Panasonic Corporation Quantizing device, encoding device, quantizing method, and encoding method
JP5326465B2 (ja) * 2008-09-26 2013-10-30 富士通株式会社 オーディオ復号方法、装置、及びプログラム
TWI433137B (zh) * 2009-09-10 2014-04-01 Dolby Int Ab 藉由使用參數立體聲改良調頻立體聲收音機之聲頻信號之設備與方法
RU2576476C2 (ru) 2009-09-29 2016-03-10 Фраунхофер-Гезелльшафт цур Фёрдерунг дер ангевандтен Форшунг Е.Ф., Декодер аудиосигнала, кодер аудиосигнала, способ формирования представления сигнала повышающего микширования, способ формирования представления сигнала понижающего микширования, компьютерная программа и бистрим, использующий значение общего параметра межобъектной корреляции
JP5581449B2 (ja) 2010-08-24 2014-08-27 ドルビー・インターナショナル・アーベー Ｆｍステレオ無線受信機の断続的モノラル受信の隠蔽
TWI516138B (zh) 2010-08-24 2016-01-01 杜比國際公司 從二聲道音頻訊號決定參數式立體聲參數之系統與方法及其電腦程式產品

Also Published As

Publication number Publication date
US9299355B2 (en) 2016-03-29
CN103718466A (zh) 2014-04-09
US20140161262A1 (en) 2014-06-12
PL2740222T3 (pl) 2015-08-31
EP2740222B1 (en) 2015-04-22
CN103718466B (zh) 2016-08-17
EP2740222A1 (en) 2014-06-11
JP5775637B2 (ja) 2015-09-09
JP2014527197A (ja) 2014-10-09
WO2013017435A1 (en) 2013-02-07

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