利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

55 条记录 (耗时 0.023 秒)

    Detection and suppression of wind noise in microphone signals
    1.
    发明公开
    Detection and suppression of wind noise in microphone signals 有权
    在Mikrofonsignalen的Erkennung undUnterdrückungvonWindgeräuschen

    公开(公告)号：EP1732352A1

    公开(公告)日：2006-12-13

    申请号：EP05009470.5

    申请日：2005-04-29

    申请人： Harman Becker Automotive Systems GmbH ,  Harman Becker Automotive Systems-Wavemakers, Inc.

    发明人： Haulick, Tim ,  Buck, Markus ,  Hetherington, Phil ,  Haindl, Klaus

    IPC分类号： H04R3/00 ,  G10L21/02

    CPC分类号： G10L21/0208 ,  G10L2021/02166 ,  H04R3/005 ,  H04R2410/01 ,  H04R2410/07 ,  H04R2499/13

    摘要： The present invention relates to a microphone system, comprising at least one directional microphone with a first directivity to obtain a first microphone signal, at least one directional microphone with a second directivity that is worse than the first directivity, in particular, an omni-directional microphone, to obtain a second microphone signal, a detection means configured to receive the first and the second microphone signals and to output a detection signal indicating whether non-acoustic perturbations, in particular, wind noise, in the first and/or the second microphone signals exceed a predetermined level and a signal processing means configured to output an output signal generated from the first microphone signal and/or the second microphone signal on the basis of the detection signal. The invention also relates to a method reducing non-acoustic perturbations in microphone signals comprising detecting an audio signal by at least one directional microphone of a first directivity to obtain a first microphone signal, detecting the audio signal by at least one directional microphone with a second directivity that is worse than the first directivity, in particular, an omni-directional microphone, to obtain a second microphone signal, determining whether non-acoustic perturbations, in particular, wind noise, that exceed a predetermined level are present in the first and/or the second microphone signal and outputting an output signal generated from the first microphone signal and/or the second microphone signal on the basis of the result of the determining whether non-acoustic perturbations that exceed a predetermined level are present in the first and/or the second microphone signal.

    摘要翻译： 麦克风系统技术领域本发明涉及一种麦克风系统，包括具有第一方向性的至少一个定向麦克风以获得第一麦克风信号，具有比第一方向性更差的第二方向性的至少一个定向麦克风，特别是全向 麦克风，以获得第二麦克风信号;检测装置，被配置为接收第一麦克风信号和第二麦克风信号，并且输出指示第一和/或第二麦克风中的非声学扰动，特别是风噪声的检测信号 信号超过预定电平，信号处理装置被配置为基于检测信号输出从第一麦克风信号和/或第二麦克风信号产生的输出信号。 本发明还涉及一种减少麦克风信号中的非声学扰动的方法，包括通过至少一个第一方向性的方向性麦克风检测音频信号以获得第一麦克风信号，通过至少一个定向麦克风检测音频信号， 比第一方向性更差的方向性，特别是全向麦克风，以获得第二麦克风信号，确定在第一和/或第二方向上是否存在超过预定水平的非声学扰动，特别是风噪声， 或第二麦克风信号，并且基于确定超过预定水平的非声学扰动的结果是否存在于第一麦克风信号和/或第二麦克风信号中的第一麦克风信号和/或第二麦克风信号中的第一和/或第二麦克风信号， 第二麦克风信号。

    Determination of the coherence of audio signals
    2.
    发明公开
    Determination of the coherence of audio signals 有权
    Bestimmung derKohärenzvon Audiosignalen

    公开(公告)号：EP2196988A1

    公开(公告)日：2010-06-16

    申请号：EP08021674.0

    申请日：2008-12-12

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Buck, Markus ,  Matheja, Timo

    IPC分类号： G10L11/02 ,  G10L21/02

    CPC分类号： G10L25/78 ,  G10L2021/02165

    摘要： The present invention relates to a method for estimating signal coherence, comprising detecting sound generated by a sound source, in particular, a speaker, by a first microphone to obtain a first microphone signal x 1 (n) and by a second microphone to obtain a second microphone signal x 2 (n), filtering the first microphone signal x 1 (n) by a first adaptive filtering means, in particular, a first Finite Impulse Response filter, to obtain a first filtered signal Y 1 (e jΩ µ,k), filtering the second microphone signal x 2 (n) by a second adaptive filtering means, in particular, a second Finite Impulse Response filter, to obtain a second filtered signal Y 2 (e jΩ µ, k ) and estimating the coherence of the first filtered signal Y 1 (e jΩ µ,k) and the second filtered signal Y 2 (e jΩ µ,k), wherein the first and the second microphone signals x 1 (n) and x 2 (n) are filtered such that the difference between the acoustic transfer function for the transfer of the sound from the sound source to the first microphone and the transfer of the sound from the sound source to the second microphone is compensated in the filtered first and second filtered signals Y 1 (e jΩ µ, k ) and Y 2 (e jΩ µ, k ).

    摘要翻译： 本发明涉及一种用于估计信号相干性的方法，包括通过第一麦克风检测由声源（特别是扬声器）产生的声音，以获得第一麦克风信号x 1（n）和由第二麦克风获得 第二麦克风信号x 2（n），通过第一自适应滤波装置，特别是第一有限脉冲响应滤波器对第一麦克风信号x 1（n）进行滤波，以获得第一滤波信号Y 1（e j，μ，k ），通过第二自适应滤波装置（特别是第二有限脉冲响应滤波器）对第二麦克风信号x 2（n）进行滤波，以获得第二滤波信号Y 2（ej？μ，k）并估计第二麦克风信号的相干性 第一滤波信号Y 1（e j©μ，k）和第二滤波信号Y 2（ej©μ，k），其中第一和第二麦克风信号x 1（n）和x 2（n）被滤波，使得 声音传递函数之间的差异来自声音的声音 在滤波的第一和第二滤波信号Y 1（e j©μ，k）和Y 2（e j©μ，k）中补偿了第一个麦克风和声音从声源到第二麦克风的传输。

    Voice control of vehicular elements from outside a vehicular cabin
    5.
    发明公开
    Voice control of vehicular elements from outside a vehicular cabin 有权
    on ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine ine

    公开(公告)号：EP1908640A1

    公开(公告)日：2008-04-09

    申请号：EP06020730.5

    申请日：2006-10-02

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Haulick, Tim ,  Buck, Markus ,  Hennecke, Marcus

    IPC分类号： B60R16/037

    CPC分类号： B60R16/0373

    摘要： The present invention relates to a method for voice control of at least one vehicular element outside a vehicular cabin, comprising arranging at least one microphone, in particular, a directional microphone, in a lamp housing installed in the vehicle body outside the vehicular cabin, detecting a verbal utterance by means of the at least one microphone to obtain at least one microphone signal, processing the at least one microphone signal for speech recognition of the verbal utterance to obtain a recognition result and automatically controlling the at least one vehicular element on the basis of the recognition result. The invention also provides a lamp housing in the vehicle body outside the vehicular cabin comprising one or more microphones.

    摘要翻译： 本发明涉及一种用于在车厢外部的至少一个车辆元件的语音控制的方法，包括在安装在车厢外的车身中的灯壳中布置至少一个麦克风，特别是定向麦克风，检测 通过所述至少一个麦克风的语言发音以获得至少一个麦克风信号，处理所述至少一个麦克风信号以进行语言话语的语音识别以获得识别结果，并且基于所述至少一个话筒元素自动控制 的识别结果。 本发明还提供一种在车辆外部的车体中的包括一个或多个麦克风的灯壳。

    Dereverberation of microphone signals
    6.
    发明公开
    Dereverberation of microphone signals 有权
    Enthallung eines Mikrofonsignals

    公开(公告)号：EP1885154A1

    公开(公告)日：2008-02-06

    申请号：EP06016029.8

    申请日：2006-08-01

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Buck, Markus ,  Schmidt, Gerhard Uwe ,  Haulick, Tim

    IPC分类号： H04R3/04 ,  G10L21/02

    CPC分类号： H04R3/04 ,  G10K2210/506 ,  G10L21/0208 ,  G10L2021/02082 ,  H04M9/082 ,  H04R2430/03

    摘要： The present invention relates to a method for dereverberation of a microphone signal, comprising the steps of dividing the microphone signal into frames or sub-bands providing at least one loudspeaker signal estimating the reverberation energy of at least some of the frames or sub-bands on the basis of the at least one loudspeaker signal and filtering the microphone signal on the basis of the estimated reverberation energy of the at least some of the frames or sub-bands. The invention also relates to a signal processing means, comprising at least one microphone configured to obtain a microphone signal, at least one loudspeaker configured to output a loudspeaker signal, a reverberation estimating means configured to estimate the reverberation energy of the reverberation portion in the microphone signal on the basis of the loudspeaker signal and a dereverberation filtering means configured to receive the microphone signal and to reduce a reverberation portion in the microphone signal on the basis of the estimated reverberation energy.

    摘要翻译： 麦克风信号的混响方法本发明涉及一种麦克风信号的混响方法，包括以下步骤：将麦克风信号分成帧或子频带，提供至少一个扬声器信号，估计至少一些帧或子频带的混响能量， 基于所述至少一个扬声器信号的基础，并且基于所估计的所述帧或子带中的至少一些的混响能量来对所述麦克风信号进行滤波。 本发明还涉及一种信号处理装置，包括配置成获得麦克风信号的至少一个麦克风，配置成输出扬声器信号的至少一个扬声器，被配置为估计麦克风中混响部分的混响能量的混响估计装置 基于扬声器信号的信号和去混响滤波装置，被配置为基于估计的混响能量接收麦克风信号并减少麦克风信号中的混响部分。

    Method and system for processing voice commands in a vehicle enviroment
    7.
    发明公开
    Method and system for processing voice commands in a vehicle enviroment 有权
    Methode und System zur Verarbeitung von Stimmkommandos in einer Fahrzeugumgebung

    公开(公告)号：EP1884421A1

    公开(公告)日：2008-02-06

    申请号：EP06016382.1

    申请日：2006-08-04

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Haulik, Tim ,  Buck, Markus ,  Köpf, Hans-Jörg

    IPC分类号： B60R25/04

    CPC分类号： B60R25/257

    摘要： In order to improve the reliability of voice processing in a vehicle environment it is proposed to detect a sound signal in the vehicle environment and to identify a voice command, which originates from a vehicle user outside the vehicle, in the detected sound signal, taking into account a position information relating to the position of the vehicle user in the vehicle environment. Information on the position of the vehicle user may be obtained from a keyless-go-system (30) or another monitoring device (20) of the motor vehicle, for example an optical imaging device of a parking-assistance system or a driver-assistance system.

    摘要翻译： 为了提高车辆环境中的语音处理的可靠性，提出了在检测到的声音信号中检测车辆环境中的声音信号并且识别来自车辆外的车辆用户的声音命令， 记录与车辆用户在车辆环境中的位置有关的位置信息。 关于车辆用户的位置的信息可以从机动车辆的无钥匙系统（30）或其他监视装置（20）获得，例如停车辅助系统的光学成像装置或驾驶员辅助 系统。

    Equalization in acoustic signal processing
    8.
    发明公开
    Equalization in acoustic signal processing 有权
    恩泽恩·安万登

    公开(公告)号：EP1858295A1

    公开(公告)日：2007-11-21

    申请号：EP06010399.1

    申请日：2006-05-19

    申请人： Harman Becker Automotive Systems GmbH

    发明人： Schmidt, Gerhard Uwe ,  Haulick, Tim ,  Buck, Markus

    IPC分类号： H04R29/00 ,  H03G5/16

    CPC分类号： H03G3/32 ,  H03G5/16 ,  H04R3/04 ,  H04R2499/13

    摘要： The present invention relates to a system for signal processing of an acoustic input signal, comprising at least one microphone, an echo compensation filtering configured to receive at least one microphone signal from the at least one microphone and comprising echo compensation filter coefficients determined on the basis of the at least one microphone signal and an equalization filtering means configured to equalize the acoustic input signal and comprising equalization filter coefficients determined on the basis of the echo compensation filter coefficients. The invention also relates to a method for enhancing the quality of a first acoustic input signal, comprising outputting a second acoustic input signal by at least one loudspeaker to generate a loudspeaker signal, generating at least one microphone signal on the basis of the loudspeaker signal, echo compensating the at least one microphone signal by adaptation of an echo compensation filtering means and equalizing the first acoustic input signal on the basis of the adapted echo compensation filtering means.

    摘要翻译： 技术领域本发明涉及用于信号处理声输入信号的系统，包括至少一个麦克风，回波补偿滤波器，其被配置为从至少一个麦克风接收至少一个麦克风信号，并且包括在该基础上确定的回波补偿滤波器系数 所述至少一个麦克风信号和均衡滤波装置被配置为均衡声输入信号并且包括基于回波补偿滤波器系数确定的均衡滤波器系数。 本发明还涉及一种用于增强第一声输入信号的质量的方法，包括由至少一个扬声器输出第二声输入信号以产生扬声器信号，基于扬声器信号产生至少一个麦克风信号， 回波通过适应回波补偿滤波装置补偿至少一个麦克风信号，并且基于适应的回波补偿滤波装置对第一声输入信号进行均衡。