WO2010140133A3 - Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element - Google Patents

Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element Download PDF

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Publication number
WO2010140133A3
WO2010140133A3 PCT/IB2010/052475 IB2010052475W WO2010140133A3 WO 2010140133 A3 WO2010140133 A3 WO 2010140133A3 IB 2010052475 W IB2010052475 W IB 2010052475W WO 2010140133 A3 WO2010140133 A3 WO 2010140133A3
Authority
WO
WIPO (PCT)
Prior art keywords
noise reduction
reduction device
hybrid active
active noise
determining
Prior art date
Application number
PCT/IB2010/052475
Other languages
French (fr)
Other versions
WO2010140133A2 (en
Inventor
Temujin Gautama
Simon Doclo
Original Assignee
Nxp B.V.
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 Nxp B.V. filed Critical Nxp B.V.
Publication of WO2010140133A2 publication Critical patent/WO2010140133A2/en
Publication of WO2010140133A3 publication Critical patent/WO2010140133A3/en

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17855—Methods, e.g. algorithms; Devices for improving speed or power requirements
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1781—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions
    • G10K11/17821—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase characterised by the analysis of input or output signals, e.g. frequency range, modes, transfer functions characterised by the analysis of the input signals only
    • G10K11/17823—Reference signals, e.g. ambient acoustic environment
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1785—Methods, e.g. algorithms; Devices
    • G10K11/17857—Geometric disposition, e.g. placement of microphones
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17879—General system configurations using both a reference signal and an error signal
    • G10K11/17881—General system configurations using both a reference signal and an error signal the reference signal being an acoustic signal, e.g. recorded with a microphone
    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/175—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound
    • G10K11/178—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general using interference effects; Masking sound by electro-acoustically regenerating the original acoustic waves in anti-phase
    • G10K11/1787—General system configurations
    • G10K11/17885—General system configurations additionally using a desired external signal, e.g. pass-through audio such as music or speech

Abstract

A hybrid active noise reduction device for reducing environmental noise is provided, the device (500) comprising a microphone (102) for receiving a noise signal (118) and for transmitting a microphone signal (122), a filter unit (114) for receiving the microphone signal (122) and for transmitting a filtered microphone signal (514), the filter unit (114) comprising a low- latency filter part (501) and a high- latency filter part (112), the low- latency filter part (501) and the high- latency filter part (112) being arranged in series to one another, and a loudspeaker (110) for transmitting a noise reduction signal (120) based on the filtered microphone signal (514). A bypass line (505) is arranged in parallel to the high- latency filter part (112) to add the outputs of the low-latency filter (501) and the high-latency filter part (112).
PCT/IB2010/052475 2009-06-03 2010-06-03 Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element WO2010140133A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP09161866.0 2009-06-03
EP09161866A EP2259250A1 (en) 2009-06-03 2009-06-03 Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element

Publications (2)

Publication Number Publication Date
WO2010140133A2 WO2010140133A2 (en) 2010-12-09
WO2010140133A3 true WO2010140133A3 (en) 2011-06-30

Family

ID=42145179

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2010/052475 WO2010140133A2 (en) 2009-06-03 2010-06-03 Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element

Country Status (2)

Country Link
EP (1) EP2259250A1 (en)
WO (1) WO2010140133A2 (en)

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EP2259250A1 (en) * 2009-06-03 2010-12-08 Nxp B.V. Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element
US9824677B2 (en) 2011-06-03 2017-11-21 Cirrus Logic, Inc. Bandlimiting anti-noise in personal audio devices having adaptive noise cancellation (ANC)
US8958571B2 (en) 2011-06-03 2015-02-17 Cirrus Logic, Inc. MIC covering detection in personal audio devices
US9318094B2 (en) 2011-06-03 2016-04-19 Cirrus Logic, Inc. Adaptive noise canceling architecture for a personal audio device
US9020065B2 (en) 2012-01-16 2015-04-28 Telefonaktiebolaget L M Ericsson (Publ) Radio frequency digital filter group delay mismatch reduction
US9123321B2 (en) 2012-05-10 2015-09-01 Cirrus Logic, Inc. Sequenced adaptation of anti-noise generator response and secondary path response in an adaptive noise canceling system
US9318090B2 (en) 2012-05-10 2016-04-19 Cirrus Logic, Inc. Downlink tone detection and adaptation of a secondary path response model in an adaptive noise canceling system
US9532139B1 (en) 2012-09-14 2016-12-27 Cirrus Logic, Inc. Dual-microphone frequency amplitude response self-calibration
US8873606B2 (en) * 2012-11-07 2014-10-28 Broadcom Corporation Transceiver including a high latency communication channel and a low latency communication channel
US9414150B2 (en) 2013-03-14 2016-08-09 Cirrus Logic, Inc. Low-latency multi-driver adaptive noise canceling (ANC) system for a personal audio device
US9881601B2 (en) * 2013-06-11 2018-01-30 Bose Corporation Controlling stability in ANR devices
US10219071B2 (en) 2013-12-10 2019-02-26 Cirrus Logic, Inc. Systems and methods for bandlimiting anti-noise in personal audio devices having adaptive noise cancellation
US9478212B1 (en) 2014-09-03 2016-10-25 Cirrus Logic, Inc. Systems and methods for use of adaptive secondary path estimate to control equalization in an audio device
US20160365084A1 (en) * 2015-06-09 2016-12-15 Cirrus Logic International Semiconductor Ltd. Hybrid finite impulse response filter
KR20180044324A (en) 2015-08-20 2018-05-02 시러스 로직 인터내셔널 세미컨덕터 리미티드 A feedback adaptive noise cancellation (ANC) controller and a method having a feedback response partially provided by a fixed response filter
US10013966B2 (en) 2016-03-15 2018-07-03 Cirrus Logic, Inc. Systems and methods for adaptive active noise cancellation for multiple-driver personal audio device
US11468874B2 (en) * 2020-11-13 2022-10-11 Google Llc Noise control system

Citations (8)

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GB2222733A (en) * 1988-09-07 1990-03-14 Topexpress Ltd Digital filter with parallel analogue path
WO1994007212A1 (en) * 1992-09-21 1994-03-31 Noise Cancellation Technologies, Inc. Sampled-data filter with low delay
US5774564A (en) * 1993-10-13 1998-06-30 Sharp Kabushiki Kaisha Active controller using lattice-type filter and active control method
US20010036283A1 (en) * 2000-03-07 2001-11-01 Mark Donaldson Active noise reduction system
US20040240677A1 (en) * 2003-05-29 2004-12-02 Masahide Onishi Active noise control system
US20070098119A1 (en) * 2003-05-14 2007-05-03 Ian Stothers Adaptive control unit with feedback compensation
US20080112570A1 (en) * 2006-11-13 2008-05-15 Sony Corporation Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system
EP2259250A1 (en) * 2009-06-03 2010-12-08 Nxp B.V. Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element

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US5440642A (en) 1993-09-20 1995-08-08 Denenberg; Jeffrey N. Analog noise cancellation system using digital optimizing of variable parameters

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2222733A (en) * 1988-09-07 1990-03-14 Topexpress Ltd Digital filter with parallel analogue path
WO1994007212A1 (en) * 1992-09-21 1994-03-31 Noise Cancellation Technologies, Inc. Sampled-data filter with low delay
US5774564A (en) * 1993-10-13 1998-06-30 Sharp Kabushiki Kaisha Active controller using lattice-type filter and active control method
US20010036283A1 (en) * 2000-03-07 2001-11-01 Mark Donaldson Active noise reduction system
US20070098119A1 (en) * 2003-05-14 2007-05-03 Ian Stothers Adaptive control unit with feedback compensation
US20040240677A1 (en) * 2003-05-29 2004-12-02 Masahide Onishi Active noise control system
US20080112570A1 (en) * 2006-11-13 2008-05-15 Sony Corporation Filter circuit for noise cancellation, noise reduction signal production method and noise canceling system
EP2259250A1 (en) * 2009-06-03 2010-12-08 Nxp B.V. Hybrid active noise reduction device for reducing environmental noise, method for determining an operational parameter of a hybrid active noise reduction device, and program element

Also Published As

Publication number Publication date
WO2010140133A2 (en) 2010-12-09
EP2259250A1 (en) 2010-12-08

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