IN-EAR ACTIVE NOISE REDUCTION EARPHONE
    1.
    发明申请
    IN-EAR ACTIVE NOISE REDUCTION EARPHONE 审中-公开
    耳内主动降噪耳机

    公开(公告)号:WO2018057508A1

    公开(公告)日:2018-03-29

    申请号:PCT/US2017/052255

    申请日:2017-09-19

    Abstract: An active noise reduction (ANR) earphone system includes a feedback microphone for detecting noise, feedback circuitry, responsive to the feedback microphone, for applying a digital filter K fb to an output of the feedback microphone to produce an antinoise signal, an electroacoustic driver for transducing the antinoise signal into acoustic energy, a housing supporting the feedback microphone and the driver near the entrance to the ear canal, and an ear tip for coupling the housing to the external anatomical structures of a first ear of a user and positioning the housing to provide a consistent acoustic coupling of the feedback microphone and the driver to the ear canal of the first ear. The acoustic coupling includes a tube of air defined by the combination of the housing and ear tip, having a length L and effective cross-sectional area A such that the ratio L/A is less than 0.6 m -1 .

    Abstract translation: 主动噪声降低(ANR)耳机系统包括用于检测噪声的反馈麦克风,响应于反馈麦克风的反馈电路,用于将数字滤波器Kfb施加到 反馈麦克风的输出以产生抗噪声信号,用于将抗噪声信号转换为声能的电声驱动器,支撑耳道入口附近的反馈麦克风和驱动器的外壳以及用于将外壳耦合到 使用者的第一耳朵的外部解剖结构以及定位所述外壳以提供所述反馈麦克风和所述驱动器到所述第一耳朵的耳道的一致声学耦合。 声耦合包括由外壳和耳塞的组合限定的空气管,其具有长度L和有效横截面积A,使得比率L / A小于0.6m -1 -1 / sup >

    IMPROVEMENTS IN HEARING ASSISTANCE USING ACTIVE NOISE REDUCTION
    3.
    发明申请
    IMPROVEMENTS IN HEARING ASSISTANCE USING ACTIVE NOISE REDUCTION 审中-公开
    主动降噪技术在听力辅助中的改进

    公开(公告)号:WO2018075876A1

    公开(公告)日:2018-04-26

    申请号:PCT/US2017/057565

    申请日:2017-10-20

    Abstract: In general, in one aspect, a hearing aid has an ANR circuit and an ear tip that acoustically occludes the ear. Such a hearing aid provides greater gain to sounds than would be stable in the same hearing aid with a vented ear tip. The ear tip and the ANR circuit in combination attenuate sounds reaching the ear canal through the hearing aid to a first level. The hearing aid detects sounds arriving at a microphone, amplifies those sounds, and provides the amplified sounds to the ear canal at a second level and later in time than the same sounds arrive at the ear canal through the ear tip. The first level is at least 14 dB greater than the second level, such that the amplified sounds do not interact with the passive sounds to result in spectral combing.

    Abstract translation: 一般而言,在一个方面,助听器具有ANR电路和耳塞,其在耳声学上阻塞耳朵。 这种助听器比在具有通风耳塞的相同助听器中稳定的提供更大的声音增益。 耳塞和ANR电路相结合,将通过助听器到达耳道的声音衰减至第一级。 助听器检测到达麦克风的声音,放大这些声音,并且将放大的声音在第二级提供放大的声音,并且随后在时间上超过相同的声音通过耳塞到达耳道。 第一个电平至少比第二个电平高14 dB,这样放大的声音就不会与被动声音相互作用,从而导致光谱梳理。

    CUSTOMIZED EARTIPS
    6.
    发明申请
    CUSTOMIZED EARTIPS 审中-公开

    公开(公告)号:WO2019005492A1

    公开(公告)日:2019-01-03

    申请号:PCT/US2018/037446

    申请日:2018-06-14

    Abstract: The technology described in this document can be embodied in a method that includes receiving one or more electronic files comprising information on structural features of a portion of an ear of a user, generating an electronic representation of the eartip or a cast based on a portion of the information on the structural features of the portion of the ear, and producing the eartip based on the electronic representation. The eartip includes an outlet, and a sealing structure disposed around an exterior of the outlet, wherein a first end of the sealing structure is attached to the outlet, and a second, opposite end of the sealing structure is physically separated from the exterior of the outlet. Generating the electronic representation includes configuring one or more structural parameters of the outlet or the sealing structure in accordance with the structural features of the portion of the ear.

    COLLABORATIVELY PROCESSING AUDIO BETWEEN HEADSET AND SOURCE TO MASK DISTRACTING NOISE
    7.
    发明申请
    COLLABORATIVELY PROCESSING AUDIO BETWEEN HEADSET AND SOURCE TO MASK DISTRACTING NOISE 审中-公开
    HEADSET和来源之间协同处理音频以掩蔽噪音

    公开(公告)号:WO2015148658A1

    公开(公告)日:2015-10-01

    申请号:PCT/US2015/022477

    申请日:2015-03-25

    Abstract: A media playback device has programmable signal processing capabilities and an input receiving signals representative of ambient noise. The media playback device identifies an output response characteristic and an attenuation characteristic of a set of headphones associated with the media playback device, predicts a property of audio output by the headphones at a user's ear based on the ambient noise input signal, the output response characteristic, and the attenuation characteristic of the headphones, predicts expected residual ambient noise at the user's ear, when wearing the headphones, derived from the ambient noise input signal and the attenuation characteristic, and modifies masking audio signals to be provided to the headphones such that they will mask the expected residual ambient noise at the user's ear.

    Abstract translation: 媒体播放设备具有可编程信号处理能力和表示环境噪声的输入接收信号。 媒体播放装置识别与媒体播放装置相关联的一组耳机的输出响应特性和衰减特性,基于环境噪声输入信号预测耳机在用户耳朵输出的音频的性质,输出响应特性 ,并且耳机的衰减特性预测了当佩戴耳机时,从环境噪声输入信号和衰减特性导出的用户耳朵处的预期残留环境噪声,并且修改要提供给耳机的屏蔽音频信号,使得它们 将掩盖用户耳朵周围的预期残留环境噪声。

    REDUCING OCCLUSION EFFECT IN ANR HEADPHONES
    8.
    发明申请
    REDUCING OCCLUSION EFFECT IN ANR HEADPHONES 审中-公开
    降低ANR耳垢中的呼吸作用

    公开(公告)号:WO2014070992A1

    公开(公告)日:2014-05-08

    申请号:PCT/US2013/067712

    申请日:2013-10-31

    Abstract: In an active noise reducing headphone, a signal processor is configured to apply first feedback filters to the feedback signal path, causing the feedback signal path to operate at a first gain level, as a function of frequency, during a first operating mode, and apply second feedback filters to the feedback signal path, causing the feedback signal path to operate at a second gain level less than the first gain level at some frequencies during a second operating mode. The first gain level is a level of gain that results in effective cancellation of sounds transmitted through or around the ear cup and through the user's head, and the second level is a level of gain that is matched to the level of sound of a typical wearer's voice transmitted through the wearer's head when wearing the headphone. A method of configuring an active noise reducing headphone comprises measuring, with active noise reduction inactive, a ratio of the responses at a user's ear to environmental noise when the headphones are worn / not present; selecting a feedback filter having a magnitude that results in the feedback loop having a desensitivity equal to the determined ratio; selecting a feed-forward filter that will provide ambient naturalness; applying the selective filters; measuring said ratio with active noise reduction active; and modifying the phase of the feed-forward filter without altering the magnitude thereof to minimize deviation of the measured value of said ratio from unity.

    Abstract translation: 在有源减噪耳机中,信号处理器被配置为将第一反馈滤波器施加到反馈信号路径,使得反馈信号路径在第一操作模式期间作为频率的函数在第一增益水平下操作,并且应用 第二反馈滤波器到反馈信号路径,使得反馈信号路径在第二操作模式期间以某些频率小于第一增益电平的第二增益电平工作。 第一增益水平是一个增益水平,导致有效地消除通过耳罩周围或通过用户头部传播的声音,而第二级别是与典型佩戴者的声音水平相匹配的增益水平 佩戴耳机时,声音通过佩戴者的头部传播。 一种配置有源减噪耳机的方法包括:当主动降噪无效时,测量当耳机佩戴/不存在时用户耳朵的响应与环境噪声的比率; 选择具有导致所述反馈回路具有等于所确定的比率的灵敏度的幅度的反馈滤波器; 选择将提供环境自然度的前馈滤波器; 应用选择性过滤器; 测量所述比例与主动降噪有效; 以及修改前馈滤波器的相位,而不改变其大小,以使所述比率的测量值与单位的偏差最小化。

    SIGNAL COMPRESSION BASED ON TRANSDUCER DISPLACEMENT
    9.
    发明申请
    SIGNAL COMPRESSION BASED ON TRANSDUCER DISPLACEMENT 审中-公开
    基于传感器位移的信号压缩

    公开(公告)号:WO2013095854A1

    公开(公告)日:2013-06-27

    申请号:PCT/US2012/066005

    申请日:2012-11-20

    CPC classification number: H04R29/003 H04R1/1083

    Abstract: A method for adjusting the performance of an electroacoustic transducer includes receiving, by gain adjustment circuit, a displacement signal corresponding to a relative motion between a magnetic structure of the electroacoustic transducer and a voice coil of the electroacoustic transducer. The method includes detecting, by the gain adjustment circuit, a displacement signal value of the displacement signal as one of meeting or exceeding a displacement signal threshold. The method includes modifying, by the gain adjustment circuit, a loop gain of an active noise reduction loop associated with the electroacoustic transducer when the displacement signal value of the displacement signal one of meets or exceeds the displacement signal threshold.

    Abstract translation: 用于调整电声换能器性能的方法包括通过增益调节电路接收对应于电声换能器的磁结构与电声换能器的音圈之间的相对运动的位移信号。 该方法包括通过增益调整电路将位移信号的位移信号值检测为满足或超过位移信号阈值之一。 所述方法包括当所述位移信号之一的位移信号值满足或超过所述位移信号阈值时,由所述增益调整电路修改与所述电声换能器相关联的有源降噪环路的环路增益。

    DYNAMIC SEAL TESTING AND FEEDBACK FOR AUDIO WEARABLE DEVICES

    公开(公告)号:WO2022245465A1

    公开(公告)日:2022-11-24

    申请号:PCT/US2022/025681

    申请日:2022-04-21

    Abstract: The present disclosure provides processes, methods, systems, and devices for providing a feedback of a wearable device to a user. The feedback may indicate a level of seal, fitness, or compatibility between the wearable device and the user. For example, the feedback provides an exact measurement and a quantified report regarding how well a seal is created when the user puts on the wearable device that dictates the wearable device's audio playback performance experienced by the user. This allows the user to identify, in addition to the comfort level, a best adjustment or selection of components (e.g., tips, inserts, cups, or the like) of the wearable device to deliver the best audio performance achievable by the wearable device. The wearable device may include ear buds, headphones, headsets, or any audio device physically contacting the user.

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