DE69227681D1 - Anordnung zur Anhebung der Bassfrequenz eines Audiosignals - Google Patents

Anordnung zur Anhebung der Bassfrequenz eines Audiosignals

Info

Publication number
DE69227681D1
DE69227681D1 DE69227681T DE69227681T DE69227681D1 DE 69227681 D1 DE69227681 D1 DE 69227681D1 DE 69227681 T DE69227681 T DE 69227681T DE 69227681 T DE69227681 T DE 69227681T DE 69227681 D1 DE69227681 D1 DE 69227681D1
Authority
DE
Germany
Prior art keywords
bass
components
audio signal
enhancement
levels
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Lifetime
Application number
DE69227681T
Other languages
English (en)
Other versions
DE69227681T2 (de
Inventor
Donn R Werrbach
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Aphex Systems Ltd
Original Assignee
Aphex Systems Ltd
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 Aphex Systems Ltd filed Critical Aphex Systems Ltd
Application granted granted Critical
Publication of DE69227681D1 publication Critical patent/DE69227681D1/de
Publication of DE69227681T2 publication Critical patent/DE69227681T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03G—CONTROL OF AMPLIFICATION
    • H03G5/00—Tone control or bandwidth control in amplifiers
    • H03G5/16—Automatic control
    • H03G5/18—Automatic control in untuned amplifiers
    • H03G5/22—Automatic control in untuned amplifiers having semiconductor devices
    • 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

Landscapes

  • Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Control Of Amplification And Gain Control (AREA)
DE69227681T 1992-07-31 1992-08-10 Anordnung zur Anhebung der Bassfrequenz eines Audiosignals Expired - Lifetime DE69227681T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US92337392A 1992-07-31 1992-07-31

Publications (2)

Publication Number Publication Date
DE69227681D1 true DE69227681D1 (de) 1999-01-07
DE69227681T2 DE69227681T2 (de) 1999-06-10

Family

ID=25448580

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69227681T Expired - Lifetime DE69227681T2 (de) 1992-07-31 1992-08-10 Anordnung zur Anhebung der Bassfrequenz eines Audiosignals

Country Status (5)

Country Link
US (1) US5359665A (de)
EP (1) EP0583492B1 (de)
JP (1) JPH06164271A (de)
AT (1) ATE173866T1 (de)
DE (1) DE69227681T2 (de)

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JPH08237800A (ja) * 1995-02-27 1996-09-13 Matsushita Electric Ind Co Ltd 低音増強回路
US6335973B1 (en) 1996-01-11 2002-01-01 Qwest Communications International Inc. System and method for improving clarity of audio systems
US6023513A (en) * 1996-01-11 2000-02-08 U S West, Inc. System and method for improving clarity of low bandwidth audio systems
JP3107006B2 (ja) * 1996-09-30 2000-11-06 ヤマハ株式会社 音場拡大器
US6792119B1 (en) 1997-05-05 2004-09-14 Koninklijke Philips Electronics N.V. Audio system
AU1072099A (en) * 1997-11-17 1999-06-07 Srs Labs, Inc Low-frequency audio simulation system
US6285767B1 (en) * 1998-09-04 2001-09-04 Srs Labs, Inc. Low-frequency audio enhancement system
JP3296311B2 (ja) * 1998-12-25 2002-06-24 ヤマハ株式会社 音響装置
DE19928420A1 (de) 1999-06-23 2000-12-28 Micronas Gmbh Verfahren zur Verarbeitung eines Audiosignals
US7466829B1 (en) 1999-08-24 2008-12-16 Logitech Europe S.A. Dynamic bass equalization with modified sallen-key high pass filter
US7031474B1 (en) 1999-10-04 2006-04-18 Srs Labs, Inc. Acoustic correction apparatus
DE19955696A1 (de) * 1999-11-18 2001-06-13 Micronas Gmbh Vorrichtung zur Erzeugung von Oberwellen in einem Audiosignal
US7277767B2 (en) 1999-12-10 2007-10-02 Srs Labs, Inc. System and method for enhanced streaming audio
US6728721B1 (en) * 2000-06-23 2004-04-27 Microsoft Corporation System and method for maintaining a user's state within a database table
US7016509B1 (en) * 2000-09-08 2006-03-21 Harman International Industries, Inc. System and method for varying low audio frequencies inversely with audio signal level
SE0004479D0 (sv) * 2000-12-05 2000-12-05 Ericsson Telefon Ab L M Method and arrangement relating to electronic compensation
GB0105975D0 (en) * 2001-03-10 2001-04-25 Central Research Lab Ltd A method of modifying low frequency components of a digital audio signal
JP2005136647A (ja) * 2003-10-30 2005-05-26 New Japan Radio Co Ltd 低音ブースト回路
ATE392116T1 (de) * 2004-01-13 2008-04-15 Koninkl Philips Electronics Nv Audiosignal-verbesserung
US8054993B1 (en) 2004-03-13 2011-11-08 Harman International Industries, Incorporated System for automatic compensation of low frequency audio based on human loudness perceptual models
US8050434B1 (en) 2006-12-21 2011-11-01 Srs Labs, Inc. Multi-channel audio enhancement system
EP2139264B1 (de) * 2007-03-20 2014-10-08 NEC Corporation Akustisches verarbeitungssystem und verfahren für ein elektronisches gerät und mobiltelefon-endgerät
US8130980B2 (en) * 2007-06-21 2012-03-06 Creative Technology Ltd Automatic gain control circuit for volume control and corresponding method for volume control
US8582784B2 (en) 2007-09-03 2013-11-12 Am3D A/S Method and device for extension of low frequency output from a loudspeaker
US8275152B2 (en) * 2007-09-21 2012-09-25 Microsoft Corporation Dynamic bass boost filter
US8992238B2 (en) 2010-07-12 2015-03-31 Ferno-Washington, Inc. Mounting system having a mounting plate with mounting studs and electrical contacts
CN104012001B (zh) 2011-12-27 2017-10-27 Dts有限责任公司 低音增强系统
US9944217B2 (en) 2013-02-11 2018-04-17 Ferno-Washington, Inc. Equipment mounting system
US10307313B2 (en) 2013-02-11 2019-06-04 Ferno-Washington, Inc. Equipment mounting system
PT2953599T (pt) 2013-02-11 2017-08-25 Ferno-Washington Inc Sistema de montagem de equipamentos
US9060223B2 (en) 2013-03-07 2015-06-16 Aphex, Llc Method and circuitry for processing audio signals
US9247342B2 (en) 2013-05-14 2016-01-26 James J. Croft, III Loudspeaker enclosure system with signal processor for enhanced perception of low frequency output
US9258664B2 (en) 2013-05-23 2016-02-09 Comhear, Inc. Headphone audio enhancement system
US11083265B2 (en) 2014-02-11 2021-08-10 Ferno-Washington, Inc. Magnetic pouch attachment mechanism with crash stable locking teeth
US10398203B2 (en) 2014-02-11 2019-09-03 Ferno-Washington, Inc. Crash-ready, portable, compartmentalization device
US10398207B2 (en) 2014-02-11 2019-09-03 Ferno-Washington, Inc. Crash-ready, portable, compartmentalization device
MX2017000721A (es) 2014-07-18 2017-12-04 Ferno Washington Mecanismo de fijacion de bolsa magnetica con dientes de bloqueo estables al choque.
GB2581119A (en) * 2016-04-29 2020-08-12 Cirrus Logic Int Semiconductor Ltd Audio signal processing
CN108781330B (zh) 2016-05-25 2020-04-28 华为技术有限公司 音频信号处理阶段、音频信号处理装置和音频信号处理方法
US10034092B1 (en) 2016-09-22 2018-07-24 Apple Inc. Spatial headphone transparency
US11166099B2 (en) * 2019-09-27 2021-11-02 Apple Inc. Headphone acoustic noise cancellation and speaker protection or dynamic user experience processing
US11361745B2 (en) 2019-09-27 2022-06-14 Apple Inc. Headphone acoustic noise cancellation and speaker protection
US11206004B1 (en) 2020-09-16 2021-12-21 Apple Inc. Automatic equalization for consistent headphone playback
US11355096B1 (en) 2020-09-16 2022-06-07 Apple Inc. Adaptive feedback processing for consistent headphone acoustic noise cancellation
US11688383B2 (en) 2021-08-27 2023-06-27 Apple Inc. Context aware compressor for headphone audio feedback path

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US3127476A (en) * 1964-03-31 david
US2408692A (en) * 1942-04-29 1946-10-01 Rca Corp Signaling system
US2379714A (en) * 1942-05-14 1945-07-03 Rca Corp Audio transmission network
US3281533A (en) * 1963-09-03 1966-10-25 Inter Aural Res Inc Stereophonic sound system
US3539725A (en) * 1968-07-12 1970-11-10 Ibm Automatic frequency shaping network
JPS574492Y2 (de) * 1972-05-13 1982-01-27
JPS5723279B2 (de) * 1972-06-03 1982-05-18
US3805177A (en) * 1972-11-24 1974-04-16 Gte Sylvania Inc Amplifier circuit having variable automatic gain control
US4150253A (en) * 1976-03-15 1979-04-17 Inter-Technology Exchange Ltd. Signal distortion circuit and method of use
US4182930A (en) * 1978-03-10 1980-01-08 Dbx Inc. Detection and monitoring device
JPS5545112A (en) * 1978-09-22 1980-03-29 Sony Corp Signal transmitter
US4249042A (en) * 1979-08-06 1981-02-03 Orban Associates, Inc. Multiband cross-coupled compressor with overshoot protection circuit
US4467287A (en) * 1982-06-04 1984-08-21 Dbx, Inc. Signal expander
JPS59105707A (ja) * 1982-12-08 1984-06-19 Matsushita Electric Ind Co Ltd 音響効果装置
US4982435A (en) * 1987-04-17 1991-01-01 Sanyo Electric Co., Ltd. Automatic loudness control circuit
US5023490A (en) * 1989-06-21 1991-06-11 General Electric Company Analog signal compression circuit
KR910007982Y1 (ko) * 1989-09-19 1991-10-10 삼성전자 주식회사 중저음 레벨 제어회로
SE465144B (sv) * 1990-06-26 1991-07-29 Ericsson Ge Mobile Communicat Saett och anordning foer behandling av en analog signal

Also Published As

Publication number Publication date
ATE173866T1 (de) 1998-12-15
EP0583492B1 (de) 1998-11-25
US5359665A (en) 1994-10-25
DE69227681T2 (de) 1999-06-10
JPH06164271A (ja) 1994-06-10
EP0583492A1 (de) 1994-02-23

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