CN1886782A - 有效消除噪音的助听器 - Google Patents

有效消除噪音的助听器 Download PDF

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CN1886782A
CN1886782A CNA2004800349479A CN200480034947A CN1886782A CN 1886782 A CN1886782 A CN 1886782A CN A2004800349479 A CNA2004800349479 A CN A2004800349479A CN 200480034947 A CN200480034947 A CN 200480034947A CN 1886782 A CN1886782 A CN 1886782A
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CN1886782B (zh
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杰斯·奥尔森
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Oticon AS
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/45—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback
    • H04R25/453—Prevention of acoustic reaction, i.e. acoustic oscillatory feedback electronically
    • 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
    • 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
    • G10K11/1783—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 handling or detecting of non-standard events or conditions, e.g. changing operating modes under specific operating conditions
    • 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
    • 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
    • G10K2210/00—Details of active noise control [ANC] covered by G10K11/178 but not provided for in any of its subgroups
    • G10K2210/10—Applications
    • G10K2210/108—Communication systems, e.g. where useful sound is kept and noise is cancelled
    • G10K2210/1081—Earphones, e.g. for telephones, ear protectors or headsets
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R2225/00—Details of deaf aids covered by H04R25/00, not provided for in any of its subgroups
    • H04R2225/025—In the ear hearing aids [ITE] hearing aids
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
    • H04R25/40—Arrangements for obtaining a desired directivity characteristic
    • H04R25/407—Circuits for combining signals of a plurality of transducers

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Neurosurgery (AREA)
  • Otolaryngology (AREA)
  • Signal Processing (AREA)
  • Audiology, Speech & Language Pathology (AREA)
  • Circuit For Audible Band Transducer (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)

Abstract

本发明涉及一种助听器，该助听器包括设有输入传感器的信号通道、信号处理器和输出传感器，该信号处理器适于产生补偿信号，该补偿信号至少能够部分消弱绕过信号通道进入耳道内的听觉信号。

Description

有效消除噪音的助听器
技术领域
本发明涉及一种助听器，特别是涉及一种包括设有接收非音频输入信号部件的助听器。
背景技术
在助听器中，除了接收音频输入的部件外，还包括接收非音频输入信号的部件，如RF接收器，接收磁性传输信号的线圈。由于周围音频环境的扰动，有可能将传输的信息作为非音频信号接收。
一般都知道，助听器包括噪音降低功能。噪音降低就是通过助听器将音频信号中干扰音频信号部分降低，即助听器用差谱法处理这些音频信号。这种噪音或音频信号降低的操作需要通过助听器的传输信号途径消除干扰信号。
这可以在很多情况下得到满意的结果；不过在一些情况下，信号消除并不充分，仍有一些改进的余地。特别是在这种情况下，即音频信号的很大一部分可能绕过助听器的信号通道传播到耳道内，这些情况包括麦克风、处理器和接收器。
因此，本发明的目的是提供一种助听器，能够在上述噪音降低效果不好的情况下降低噪音。
发明内容
根据本发明，可以通过权利要求1所述的助听器实现本发明的目的。
通过这种助听器，至少可以消弱可能绕过信号通道进入耳道内的声音信号，其中声音信号通过如无线或有线接头接收到，尽管听力受损的助听器使用者可以在辅助信号的情况下引起扰动。
本发明实施例的优点是进一步包括获取耳道内声音信号的内部输入传感器，该内部输入传感器和信号通道连接。
当信号通道中提供辅助输入时，优选设置转换设备切换到产生补偿信号的状态。转换设备特别适合接收到附加输入时自动产生补偿信号。
本发明将通过下述实施例及附图进行进一步的说明。
附图说明
图1是显示本发明原理的流程图。
图2是显示本发明第二实施例原理的流程图。
具体实施方式
根据本发明，图1显示了助听器的噪音消除流程。该助听器包括设有一个或多个外部输入传感器1-N1的信号通道、进行听力损失补偿的信号处理器和噪音消除部分(ANC)，以及一种或多种输出传感器1-N3。此外，装配助听器时，信号通道包括一种或多种内设的深层输入传感器1-N2，即设在耳道内或与接收器结合。内部输入传感器或误差麦克风在耳道内产生信号并输入道信号处理器中，从而产生能够调整消弱信号的误差信号，并至少部分消除耳道内的干扰信号。提供一种或多种单独的输出传感器以输出补偿信号，其中这些传感器和正常的助听器的功能相对应。补偿信号可以以外部输入传感器1-N1的输入为基础，该输入和干扰信号对应；补偿信号可以以输入状态的改变为基础，进一步根据实际情况进行调整。
助听器进一步包括电子输入部件1-N4，如无线接收器或直接的音频输入接收器，这些接收器可以是任何形式的，如线圈接收器或调频收音机接收器。部件优选可以消弱外部传感器的信号，或将其关闭。
图2所示的实施例显示了输入和听力损失之间以及ANC和听力补偿之间建立的附加通道。
联系到助听器的应用，通常需要将助听器舒适的装在耳道形状的耳模上以避免回声。这些正常的要求将在一定程度上为降低声音信号从外面绕过信号通道提供一种补救措施。不过在一些系统中设有信号处理系统，包括回声的消除，进而可以使用所谓的开放装置，其中可以提供全部开放耳道、助听器或耳模中至少一个重要的开口或引入到耳道内的试管，从而减少闭塞现象。显然，这些开放的装置可以很到程度上增加声音信号绕过信号通道。因此，本发明在这种情况下具有更加重要的意义。

Claims (5)

1、一种助听器，该助听器包括设有输入传感器的信号通道、信号处理器和输出传感器，该信号处理器适于产生补偿信号，该补偿信号至少能够部分消弱绕过信号通道进入耳道内的听觉信号。
2、根据权利要求1所述的助听器，其中该助听器进一步包括至少一个在耳道内获取声音信号的内部输入传感器，该内部输入传感器和信号通道连接。
3、根据权利要求1或2所述的助听器，其中在信号通道内提供辅助输入。
4、根据权利要求1或2或3所述的助听器，其中设有转换设备，该转换设备将信号处理器转换到产生补偿信号的状态。
5、根据权利要求4所述的助听器，其中转换设备在接收到辅助输入时可以自动产生补偿信号。
CN2004800349479A 2003-11-26 2004-11-18 有效消除噪音的助听器 Active CN1886782B (zh)

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PCT/DK2004/000796 WO2005052911A1 (en) 2003-11-26 2004-11-18 Hearing aid with active noise canceling

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CN102413412A (zh) * 2010-09-22 2012-04-11 Gn瑞声达A/S 具有闭塞抑制和次声能量控制的助听器
CN101365259B (zh) * 2007-08-10 2013-05-08 奥迪康有限公司 听力装置中的有源噪声消除
CN108604454A (zh) * 2016-03-16 2018-09-28 华为技术有限公司 音频信号处理装置和输入音频信号处理方法

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101365259B (zh) * 2007-08-10 2013-05-08 奥迪康有限公司 听力装置中的有源噪声消除
CN102413412A (zh) * 2010-09-22 2012-04-11 Gn瑞声达A/S 具有闭塞抑制和次声能量控制的助听器
CN108604454A (zh) * 2016-03-16 2018-09-28 华为技术有限公司 音频信号处理装置和输入音频信号处理方法
CN108604454B (zh) * 2016-03-16 2020-12-15 华为技术有限公司 音频信号处理装置和输入音频信号处理方法

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EP1690252B1 (en) 2017-07-12
DK1690252T3 (en) 2017-10-09
EP1690252A1 (en) 2006-08-16
CN1886782B (zh) 2010-10-06

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