JP6976277B2 - 第一の周波数領域から第二の周波数領域にデジタル・オーディオ信号を変換するためのオーディオ・デコーダおよび方法 - Google Patents

第一の周波数領域から第二の周波数領域にデジタル・オーディオ信号を変換するためのオーディオ・デコーダおよび方法 Download PDF

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JP6976277B2
JP6976277B2 JP2018567177A JP2018567177A JP6976277B2 JP 6976277 B2 JP6976277 B2 JP 6976277B2 JP 2018567177 A JP2018567177 A JP 2018567177A JP 2018567177 A JP2018567177 A JP 2018567177A JP 6976277 B2 JP6976277 B2 JP 6976277B2
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frequency
audio signal
digital audio
frame
filter
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JP2019522816A5 (enExample
JP2019522816A (ja
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エクストランド，ペール
テシング，ロビン
ヴィレモーズ，ラーシュ
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ドルビー・インターナショナル・アーベー
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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
    • G10L19/02—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
    • 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
    • G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
    • G10L21/0388—Details of processing therefor
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Human Computer Interaction (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Computational Linguistics (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Quality & Reliability (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Mathematical Physics (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
JP2018567177A 2016-06-22 2017-06-20 第一の周波数領域から第二の周波数領域にデジタル・オーディオ信号を変換するためのオーディオ・デコーダおよび方法 Active JP6976277B2 (ja)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
US201662353241P 2016-06-22 2016-06-22
EP16175715.8 2016-06-22
US62/353,241 2016-06-22
EP16175715 2016-06-22
PCT/EP2017/065011 WO2017220528A1 (en) 2016-06-22 2017-06-20 Audio decoder and method for transforming a digital audio signal from a first to a second frequency domain

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JP2019522816A JP2019522816A (ja) 2019-08-15
JP2019522816A5 JP2019522816A5 (enExample) 2020-07-30
JP6976277B2 true JP6976277B2 (ja) 2021-12-08

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CN120510852A (zh) * 2019-02-21 2025-08-19 瑞典爱立信有限公司 用于频域分组丢失隐藏的方法及相关解码器
US11509548B1 (en) * 2021-07-16 2022-11-22 Google Llc Adaptive exponential moving average filter
CN113488068B (zh) * 2021-07-19 2024-03-08 歌尔科技有限公司 音频异常检测方法、装置及计算机可读存储介质

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TWI591625B (zh) * 2009-05-27 2017-07-11 杜比國際公司 從訊號的低頻成份產生該訊號之高頻成份的系統與方法，及其機上盒、電腦程式產品、軟體程式及儲存媒體
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US10770082B2 (en) 2020-09-08
EP3475944A1 (en) 2019-05-01
EP3475944B1 (en) 2020-07-15
JP2019522816A (ja) 2019-08-15
US20190251978A1 (en) 2019-08-15

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