TWI794032B - 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置 - Google Patents

應用動態範圍壓縮至高階保真立體音響信號之方法和裝置 Download PDF

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TWI794032B
TWI794032B TW111107641A TW111107641A TWI794032B TW I794032 B TWI794032 B TW I794032B TW 111107641 A TW111107641 A TW 111107641A TW 111107641 A TW111107641 A TW 111107641A TW I794032 B TWI794032 B TW I794032B
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hoa
gain
matrix
signal
drc
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TW111107641A
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TW202301318A (zh
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約哈拿斯 波漢
弗羅里安 凱勒
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瑞典商杜比國際公司
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/008—Systems employing more than two channels, e.g. quadraphonic in which the audio signals are in digital form, i.e. employing more than two discrete digital channels
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R5/00—Stereophonic arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S3/00—Systems employing more than two channels, e.g. quadraphonic
    • H04S3/02—Systems employing more than two channels, e.g. quadraphonic of the matrix type, i.e. in which input signals are combined algebraically, e.g. after having been phase shifted with respect to each other
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/01—Enhancing the perception of the sound image or of the spatial distribution using head related transfer functions [HRTF's] or equivalents thereof, e.g. interaural time difference [ITD] or interaural level difference [ILD]
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04S—STEREOPHONIC SYSTEMS 
    • H04S2420/00—Techniques used stereophonic systems covered by H04S but not provided for in its groups
    • H04S2420/11—Application of ambisonics in stereophonic audio systems

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Algebra (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Theoretical Computer Science (AREA)
  • Pure & Applied Mathematics (AREA)
  • Stereophonic System (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Nuclear Medicine (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
TW111107641A 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置 TWI794032B (zh)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP14305423.7 2014-03-24
EP14305423 2014-03-24
EP14305559.8 2014-04-15
EP14305559.8A EP2934025A1 (en) 2014-04-15 2014-04-15 Method and device for applying dynamic range compression to a higher order ambisonics signal

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TW202301318A TW202301318A (zh) 2023-01-01
TWI794032B true TWI794032B (zh) 2023-02-21

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TW111107641A TWI794032B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW113102511A TWI870214B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW109126543A TWI718979B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW109101396A TWI711034B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW104109277A TWI662543B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW110102935A TWI760084B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW108105179A TWI695371B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW113148548A TWI907209B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW112102828A TWI833562B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置

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TW109126543A TWI718979B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW109101396A TWI711034B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW104109277A TWI662543B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW110102935A TWI760084B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW108105179A TWI695371B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮之方法和設備以及一種非暫態電腦可讀取儲存媒體
TW113148548A TWI907209B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置
TW112102828A TWI833562B (zh) 2014-03-24 2015-03-24 應用動態範圍壓縮至高階保真立體音響信號之方法和裝置

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CN (8) CN117133298A (cg-RX-API-DMAC7.html)
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BR122020020719B1 (pt) 2023-02-07
CA2946916A1 (en) 2015-10-01
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JP2026071353A (ja) 2026-04-28
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CA3155815A1 (en) 2015-10-01
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EP3123746A1 (en) 2017-02-01
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