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1. 发明申请

WO2018127298A1 MICROPHONE ASSEMBLY TO BE WORN AT A USER'S CHEST 审中-公开
公开(公告)号：WO2018127298A1
公开(公告)日：2018-07-12
申请号：PCT/EP2017/050341
申请日：2017-01-09
申请人： SONOVA AG
发明人： GIGANDET, Xavier , JOST, Timothée
IPC分类号： H04R25/00 , H04R3/00 , H04R27/00
摘要： There is provided a microphone assembly (10) to be worn at a user's chest, comprising: at least three microphones (20, 21, 22) for capturing audio signals from the user's voice, the microphones defining a microphone plane; an acceleration sensor (30) for sensing gravitational acceleration in at least two orthogonal dimensions so as to determine a direction of gravity ( G xy ); a beamformer unit (32) for processing the captured audio signals in a manner so as to create a plurality of N acoustic beams (1 a-6a, 1 b-6b) having directions spread across the microphone plane, a unit (34) for selecting a subgroup of M acoustic beams from the N the acoustic beams, wherein the M acoustic beams are those of the N acoustic beams whose direction is closest to the direction (26) antiparallel to the direction of gravity determined from the gravitational acceleration sensed by the acceleration sensor; an audio signal processing unit (36) having M independent channels (36A, 36B), one for each of the M acoustic beams of the subgroup, for producing an output audio signal for each of the M acoustic beams; a unit (38) for estimating the speech quality of the audio signal in each of the channels; and an output unit (40) for selecting the signal of the channel with the highest estimated speech quality as the output signal (42) of the microphone assembly (10).

2. 发明申请

WO2017174136A1 HEARING ASSISTANCE SYSTEM 审中-公开
标题翻译：听力辅助系统
公开(公告)号：WO2017174136A1
公开(公告)日：2017-10-12
申请号：PCT/EP2016/057614
申请日：2016-04-07
申请人： SONOVA AG
发明人： BALANDE, William , JOST, Timothée
IPC分类号： H04R25/00
摘要： There is provided a system for providing hearing assistance to a user, comprising: a table microphone unit (10) for capturing audio signals from a speaker's voice, comprising a microphone arrangement (16) comprising at least three microphones (M1, M2, M3) arranged in a non-linear manner, a beamformer unit (48) comprising a plurality of beamformers (BF1, BF2,... ), wherein each beamformer is configured to generate an acoustic beam (B1, B2,...) by beamforming processing of audio signals captured by a subset of the microphones in such a manner that the acoustic beam has a fixed direction, an audio signal analyzer unit (52) for analyzing the beams in order to determine at least one acoustic parameter for each acoustic beam, a beam selection unit (54) for selecting one of the acoustic beams as the presently active beam based on the values of the at least one acoustic parameter, an output unit (60) for providing an acoustic output stream (26), wherein the output unit is configured to provide, during stationary phases of the beam selection, the presently active beam as the output stream, and to provide, during a transition period starting upon switching of the beam selection from a first beam to a second beam, a mixture of the first and second beam with a time-variable weighting of the first and second beam as the output stream so as to enable a smooth transition from the first beam to the second beam during the transition period, a transmission unit (20) for transmitting an audio signal corresponding to the output stream via a wireless link (14); and a hearing assistance device (12) to be worn by the user, comprising a receiver unit (30) for receiving audio signals transmitted from the transmitter of the table microphone unit and an output transducer (40) for stimulation of the user's hearing according to the received audio signals.
摘要翻译：提供了一种用于向用户提供助听的系统，包括：用于从扬声器的语音捕获音频信号的桌子麦克风单元（10），包括麦克风装置（16），该麦克风装置（16）包括至少三个以非线性方式布置的麦克风（M1，M2，M3），包括多个波束形成器（BF1，BF2，...）的波束形成器单元（48），其中每个波束形成器被配置为生成声束（B1， B2，...）通过对所述麦克风的子集捕获的音频信号进行波束形成处理，使得所述声束具有固定的方向，音频信号分析器单元（52），用于分析所述波束以便至少确定用于每个声束的一个声学参数;基于所述至少一个声学参数的值，用于选择所述声束中的一个作为当前活性束的束选择单元（54）;用于提供声输出的输出单元（60）流（26），其中输出单元是配置的红色以在光束选择的静止阶段期间提供当前有效光束作为输出流，并且在从将光束选择从第一光束切换到第二光束开始的过渡时段期间提供第一光束和第二光束的混合，以及第二波束，其具有作为输出流的第一和第二波束的随时间变化的加权，以便能够在过渡时段期间从第一波束到第二波束的平滑过渡;发送单元（20），用于发送音频信号对应于经由无线链路（14）的输出流; 和用户佩戴的助听装置（12），包括用于接收从桌上麦克风单元的发射机发送的音频信号的接收器单元（30）和用于根据接收到的音频信号。

3. 发明申请

WO2017157443A1 HEARING ASSISTANCE SYSTEM IN A MULTI-TALKER ACOUSTIC NETWORK 审中-公开
标题翻译：多人声学网络中的听力辅助系统
公开(公告)号：WO2017157443A1
公开(公告)日：2017-09-21
申请号：PCT/EP2016/055763
申请日：2016-03-17
申请人： SONOVA AG
发明人： JOST, Timothée , MARQUIS, Francois
IPC分类号： H04R25/00 , G10L25/78 , H04M3/56
摘要： There is provided a multi-talker acoustic network system for providing hearing assistance to a user, comprising at least two table microphone units (10, 12) for capturing audio signals from a speaker's voice, each comprising a microphone arrangement (30) having an omnidirectional characteristic, a VAD (32) for detecting voice activity of the microphone arrangement and a transmitter (36) for transmitting the captured audio signals via a wireless audio link (40), a control unit (34) for selecting one of the table microphone units as the presently active microphone unit, wherein the control unit is configured to select, in case that at a time only for one of the table microphone units voice activity is detected, that one of the table microphone units as the presently active microphone unit, and to select, in case that at a time for more than one of the table microphone units voice activity is detected, at least for a certain time period that one of the table microphone units as the presently active microphone unit which has detected the voice activity first as the presently active microphone unit, wherein the system is configured to maintain the selection of the presently active microphone unit with a release time, and a hearing assistance device (20, 22) to be worn by the user, comprising a receiver unit (42) for receiving audio signals captured by the presently active microphone unit and an output transducer (44) for stimulation of the user's hearing according to the received audio signals, wherein the system is configured to prevent audio signals of the table microphone unit(s) not being the presently active microphone unit from being supplied to the output transducer.
摘要翻译：提供了一种用于向用户提供助听的多用户声学网络系统，包括至少两个用于从扬声器的语音捕获音频信号的桌上麦克风单元（10,12），每个麦克风单元包括具有全向特性的麦克风装置（30），用于检测麦克风装置的话音活动的VAD（32）和用于经由无线音频链路（40）发送所俘获的音频信号的发射器（36），控制单元（34）用于选择所述表格麦克风单元中的一个作为当前有效的麦克风单元，其中，所述控制单元被配置为：如果仅针对所述表格麦克风单元中的一个检测到语音活动，则选择所述表格麦克风单元中的一个作为当前有效的麦克风单元，并且如果一次检测到多个表麦克风单元有话音活动，则至少在某个时间段内选择其中一个表麦克风单元作为目前作为当前有效的麦克风单元首先检测到语音活动的当前有效的麦克风单元，其中该系统被配置为利用释放时间来维持对当前有效的麦克风单元的选择，以及助听装置（20,22）包括用于接收由当前有效的麦克风单元捕获的音频信号的接收器单元（42）和用于根据接收到的音频信号刺激用户的听力的输出变换器（44），其中该系统被配置以防止桌面麦克风单元的音频信号不是当前有效的麦克风单元被提供给输出换能器。

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