JP3871347B2 - スペクトル帯域複製を用いた原始コーディングの強化 - Google Patents

スペクトル帯域複製を用いた原始コーディングの強化 Download PDF

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JP3871347B2
JP3871347B2 JP50196299A JP50196299A JP3871347B2 JP 3871347 B2 JP3871347 B2 JP 3871347B2 JP 50196299 A JP50196299 A JP 50196299A JP 50196299 A JP50196299 A JP 50196299A JP 3871347 B2 JP3871347 B2 JP 3871347B2
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signal
subband
frequency
signals
segment
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JP2001521648A (ja
JP2001521648A5 (enExample
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リルイエリド，ラルス，グスタフ
エクストランド，ペル，ルネ，アルビン
ヘン，ラルス，フレドリック
クヨルリング，ハンス，マグヌス，クリストフエル
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コーディング テクノロジーズ アクチボラゲット
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Priority claimed from SE9702213A external-priority patent/SE9702213D0/xx
Priority claimed from SE9704634A external-priority patent/SE9704634D0/xx
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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
    • 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
    • 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

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  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • Computational Linguistics (AREA)
  • Quality & Reliability (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
  • Luminescent Compositions (AREA)
  • Pyridine Compounds (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Cosmetics (AREA)
JP50196299A 1997-06-10 1998-06-09 スペクトル帯域複製を用いた原始コーディングの強化 Expired - Lifetime JP3871347B2 (ja)

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
SE9702213A SE9702213D0 (sv) 1997-06-10 1997-06-10 A method and a device for bit-rate reduction using synthetic bandwidth expansion
SE9702213-1 1997-06-10
SE9704634-6 1997-12-12
SE9704634A SE9704634D0 (sv) 1997-12-12 1997-12-12 Synthetic bandwidth expansion of audio signals
SE9800268-6 1998-01-30
SE9800268A SE512719C2 (sv) 1997-06-10 1998-01-30 En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion
PCT/IB1998/000893 WO1998057436A2 (en) 1997-06-10 1998-06-09 Source coding enhancement using spectral-band replication

Related Child Applications (1)

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JP2004355011A Division JP4220461B2 (ja) 1997-06-10 2004-12-08 時間的に離散した音声信号のアップサンプリングした信号を発生する方法と装置

Publications (3)

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JP2001521648A JP2001521648A (ja) 2001-11-06
JP2001521648A5 JP2001521648A5 (enExample) 2004-07-15
JP3871347B2 true JP3871347B2 (ja) 2007-01-24

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JP50196299A Expired - Lifetime JP3871347B2 (ja) 1997-06-10 1998-06-09 スペクトル帯域複製を用いた原始コーディングの強化
JP2004355011A Expired - Lifetime JP4220461B2 (ja) 1997-06-10 2004-12-08 時間的に離散した音声信号のアップサンプリングした信号を発生する方法と装置

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JP2004355011A Expired - Lifetime JP4220461B2 (ja) 1997-06-10 2004-12-08 時間的に離散した音声信号のアップサンプリングした信号を発生する方法と装置

Country Status (13)

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US (4) US6680972B1 (enExample)
EP (2) EP0940015B1 (enExample)
JP (2) JP3871347B2 (enExample)
CN (2) CN1308916C (enExample)
AT (2) ATE257987T1 (enExample)
AU (1) AU7446598A (enExample)
BR (1) BR9805989B1 (enExample)
DE (2) DE69821089T2 (enExample)
DK (2) DK0940015T3 (enExample)
ES (2) ES2213901T3 (enExample)
PT (2) PT940015E (enExample)
SE (1) SE512719C2 (enExample)
WO (1) WO1998057436A2 (enExample)

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US10192565B2 (en) 2009-01-16 2019-01-29 Dolby International Ab Cross product enhanced harmonic transposition

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