公开(公告)号：US11367437B2

公开(公告)日：2022-06-21

申请号：US16426356

申请日：2019-05-30

申请人： NUANCE COMMUNICATIONS, INC.

发明人： Timo Matheja ,  Markus Buck ,  Andreas Kirbach ,  Martin Roessler ,  Tim Haulick ,  Julien Premont ,  Josef Anastasiadis ,  Rudi Vuerinckx ,  Christophe Ris ,  Stijn Verschaeren ,  Hakan Ari ,  Dieter Ranz

IPC分类号： G10L15/20 ,  G10L17/00 ,  G10L15/22 ,  H04R1/40 ,  G10L21/02

摘要： There is provided a speech dialog system that includes a first microphone, a second microphone, a processor and a memory. The first microphone captures first audio from a first spatial zone, and produces a first audio signal. The second microphone captures second audio from a second spatial zone, and produces a second audio signal. The processor receives the first audio signal and the second audio signal, and the memory contains instructions that control the processor to perform operations of a speech enhancement module, an automatic speech recognition module, and a speech dialog module that performs a zone-dedicated speech dialog.

公开(公告)号：US20160261951A1

公开(公告)日：2016-09-08

申请号：US15029330

申请日：2013-10-30

申请人： NUANCE COMMUNICATIONS, INC

发明人： Timo Matheja ,  Markus Buck ,  Julien Premont

IPC分类号： H04R3/00 ,  G10L21/0232 ,  H04R1/32 ,  H04R3/12 ,  H03G3/30

CPC分类号： H04R3/005 ,  G10L21/0232 ,  H03G3/301 ,  H04R1/326 ,  H04R3/12 ,  H04R5/027 ,  H04R2499/13

摘要： Methods and apparatus for frequency selective signal mixing for speech enhancement. In one embodiment frequency-based channel selection is performed for signal magnitude, signal energy, and noise estimate using speaker activity detection information, signal-to-noise ratio, and/or signal level, Frequency-based channel selection is performed for a dynamic spectral floor to adjust the noise estimate using speaker dominance information. Noise reduction is performed on the signal for the selected channel.

摘要翻译： 用于语音增强的频率选择信号混合的方法和装置。 在一个实施例中，使用扬声器活动检测信息，信噪比和/或信号电平对信号幅度，信号能量和噪声估计执行基于频率的信道选择，对于动态频谱执行基于频率的信道选择 使用扬声器优势信息来调整噪声估计。 对所选频道的信号进行降噪。

公开(公告)号：US10536773B2

公开(公告)日：2020-01-14

申请号：US15029330

申请日：2013-10-30

申请人： NUANCE COMMUNICATIONS, INC.

发明人： Timo Matheja ,  Markus Buck ,  Julien Premont

IPC分类号： H04R3/00 ,  H04R5/027 ,  H04R3/12 ,  G10L21/0232 ,  H03G3/30 ,  H04R1/32

摘要： Methods and apparatus for frequency selective signal mixing for speech enhancement. In one embodiment frequency-based channel selection is performed for signal magnitude, signal energy, and noise estimate using speaker activity detection information, signal-to-noise ratio, and/or signal level, Frequency-based channel selection is performed for a dynamic spectral floor to adjust the noise estimate using speaker dominance information. Noise reduction is performed on the signal for the selected channel.