公开(公告)号：US20150156598A1

公开(公告)日：2015-06-04

申请号：US14095180

申请日：2013-12-03

Applicant: Cisco Technology, Inc.

Inventor： Haohai SUN ,  Bjorn Winsvold

IPC: H04R29/00 ,  H04N7/15

CPC classification number: H04R29/008 ,  G06K9/00221 ,  G10L25/48 ,  G10L25/78 ,  G10L2021/02166 ,  H04L12/1822 ,  H04M3/56 ,  H04N7/147 ,  H04N7/15 ,  H04R29/004

Abstract: A processing system can include a processor that includes circuitry. The circuitry can be configured to: receive far-end and near-end audio signals; detect silence events and voice activities from the audio signals; determine whether an audio event in the audio signals is an interference event or a speaker event based on the detected silence events and voice activities, and further based on localized acoustic source data and faces or motion detected from an image; and generate a mute or unmute indication based on whether the audio event is the interference event or the speaker event. The system can include a near-end microphone array to output the near-end audio signals, one or more far-end microphones to output the far-end audio signals, and one or more cameras to capture the image of the environment.

Abstract translation: 处理系统可以包括包括电路的处理器。 电路可以配置为：接收远端和近端音频信号; 从音频信号中检测静音事件和语音活动; 基于检测到的静音事件和语音活动，确定音频信号中的音频事件是干扰事件还是扬声器事件，并且还基于局部声源数据和从图像检测到的面部或运动; 并且基于音频事件是干扰事件还是说话人事件来产生静音或非静音指示。 该系统可以包括近端麦克风阵列以输出近端音频信号，一个或多个远端麦克风输出远端音频信号，以及一个或多个相机来捕获环境图像。

公开(公告)号：US20150110282A1

公开(公告)日：2015-04-23

申请号：US14098064

申请日：2013-12-05

Applicant: CISCO TECHNOLOGY, INC.

Inventor： Haohai SUN

IPC: H04B3/23 ,  H04R3/00

CPC classification number: H04B3/23 ,  G10L25/51 ,  G10L2021/02082 ,  H04M9/082 ,  H04M2250/20 ,  H04N7/15 ,  H04R3/005

Abstract: A processing system can include a tracking microphone array; audio tracker circuitry connected to the tracking microphone array to track an audio source based on an audio input from the array; communication microphones; and a processor. The processor can include audio circuitry to receive an audio input from the communication microphones and process the audio input to apply one or more of acoustic echo cancellation (AEC) and acoustic echo suppression (AES) processing to the audio input. The processor can further include calculating circuitry to calculate a ratio of signal power after and before the AEC and/or the AES processing, and control circuitry to generate an acoustic echo presence indication based on the ratio calculated by the calculating circuitry. The processor can transmit, via transmitting circuitry, the acoustic echo presence indication to an audio tracking device via a data communication channel between the processor and the audio tracker.

Abstract translation: 处理系统可以包括跟踪麦克风阵列; 连接到跟踪麦克风阵列的音频跟踪器电路基于来自阵列的音频输入来跟踪音频源; 通讯麦克风; 和处理器。 处理器可以包括音频电路，以从通信麦克风接收音频输入，并处理音频输入以将一个或多个声学回声消除（AEC）和声学回声抑制（AES）处理应用于音频输入。 处理器还可以包括计算电路以计算在AEC和/或AES处理之前和之后的信号功率的比率，以及控制电路，以基于由计算电路计算的比率来生成声学回声存在指示。 处理器可以经由发送电路经由处理器和音频跟踪器之间的数据通信信道将声学回声存在指示发送到音频跟踪装置。