JP5969727B2 - 動的閾値を用いた周波数帯域圧縮 - Google Patents

動的閾値を用いた周波数帯域圧縮 Download PDF

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JP5969727B2
JP5969727B2 JP2016510698A JP2016510698A JP5969727B2 JP 5969727 B2 JP5969727 B2 JP 5969727B2 JP 2016510698 A JP2016510698 A JP 2016510698A JP 2016510698 A JP2016510698 A JP 2016510698A JP 5969727 B2 JP5969727 B2 JP 5969727B2
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frequency band
threshold
distortion
estimate
varying
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JP2016518788A (ja
Inventor
ジェイ． シーフェルドット，アラン
ジェイ． シーフェルドット，アラン
Original Assignee
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
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
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    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/165—Equalizers; Volume or gain control in limited frequency bands
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/005—Combinations of two or more types of control, e.g. gain control and tone control of digital or coded signals
    • 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
    • G10L21/0316—Speech enhancement, e.g. noise reduction or echo cancellation by changing the amplitude
    • G10L21/0324—Details of processing therefor
    • G10L21/034—Automatic adjustment
    • 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
    • G10L25/03—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters
    • G10L25/18—Speech or voice analysis techniques not restricted to a single one of groups G10L15/00 - G10L21/00 characterised by the type of extracted parameters the extracted parameters being spectral information of each sub-band
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F3/00—Amplifiers with only discharge tubes or only semiconductor devices as amplifying elements
    • H03F3/181—Low-frequency amplifiers, e.g. audio preamplifiers
    • H03F3/183—Low-frequency amplifiers, e.g. audio preamplifiers with semiconductor devices only
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G3/00—Gain control in amplifiers or frequency changers
    • H03G3/20—Automatic control
    • H03G3/30—Automatic control in amplifiers having semiconductor devices
    • H03G3/3005—Automatic control in amplifiers having semiconductor devices in amplifiers suitable for low-frequencies, e.g. audio amplifiers
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G9/00—Combinations of two or more types of control, e.g. gain control and tone control
    • H03G9/02—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers
    • H03G9/025—Combinations of two or more types of control, e.g. gain control and tone control in untuned amplifiers frequency-dependent volume compression or expansion, e.g. multiple-band systems
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R29/00—Monitoring arrangements; Testing arrangements
    • H04R29/008—Visual indication of individual signal levels
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R3/00—Circuits for transducers, loudspeakers or microphones
    • H04R3/04—Circuits for transducers, loudspeakers or microphones for correcting frequency response
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03F—AMPLIFIERS
    • H03F2200/00—Indexing scheme relating to amplifiers
    • H03F2200/03—Indexing scheme relating to amplifiers the amplifier being designed for audio applications

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Signal Processing (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Computational Linguistics (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Otolaryngology (AREA)
  • General Health & Medical Sciences (AREA)
  • Power Engineering (AREA)
  • Quality & Reliability (AREA)
  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
JP2016510698A 2013-04-29 2014-04-14 動的閾値を用いた周波数帯域圧縮 Active JP5969727B2 (ja)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US201361817175P 2013-04-29 2013-04-29
US61/817,175 2013-04-29
PCT/US2014/034024 WO2014179021A1 (en) 2013-04-29 2014-04-14 Frequency band compression with dynamic thresholds

Related Child Applications (1)

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JP2016134973A Division JP6436934B2 (ja) 2013-04-29 2016-07-07 動的閾値を用いた周波数帯域圧縮

Publications (2)

Publication Number Publication Date
JP2016518788A JP2016518788A (ja) 2016-06-23
JP5969727B2 true JP5969727B2 (ja) 2016-08-17

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JP2016510698A Active JP5969727B2 (ja) 2013-04-29 2014-04-14 動的閾値を用いた周波数帯域圧縮
JP2016134973A Active JP6436934B2 (ja) 2013-04-29 2016-07-07 動的閾値を用いた周波数帯域圧縮

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US (1) US9762198B2 (enExample)
EP (1) EP2992605B1 (enExample)
JP (2) JP5969727B2 (enExample)
CN (2) CN108365827B (enExample)
WO (1) WO2014179021A1 (enExample)

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Also Published As

Publication number Publication date
CN105164918B (zh) 2018-03-30
CN105164918A (zh) 2015-12-16
HK1222478A1 (en) 2017-06-30
HK1258837A1 (zh) 2019-11-22
EP2992605A1 (en) 2016-03-09
CN108365827B (zh) 2021-10-26
WO2014179021A1 (en) 2014-11-06
US9762198B2 (en) 2017-09-12
JP6436934B2 (ja) 2018-12-12
HK1215108A1 (zh) 2016-08-12
CN108365827A (zh) 2018-08-03
US20160072467A1 (en) 2016-03-10
EP2992605B1 (en) 2017-06-07
JP2016518788A (ja) 2016-06-23
JP2016195439A (ja) 2016-11-17

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