发明名称 |
ACOUSTIC ECHO CONTROL FOR AUTOMATED SPEAKER TRACKING SYSTEMS |
摘要 |
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. |
申请公布号 |
US2015110282(A1) |
申请公布日期 |
2015.04.23 |
申请号 |
US201314098064 |
申请日期 |
2013.12.05 |
申请人 |
CISCO TECHNOLOGY, INC. |
发明人 |
SUN Haohai |
分类号 |
H04B3/23;H04R3/00 |
主分类号 |
H04B3/23 |
代理机构 |
|
代理人 |
|
主权项 |
1. A processor, comprising:
audio circuitry configured to receive an audio input from 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; calculating circuitry configured to calculate a ratio of signal power after and before the AEC and/or the AES processing; control circuitry configured to generate an acoustic echo presence indication based on the ratio calculated by the calculating circuitry; and transmitting circuitry configured to transmit the acoustic echo presence indication to an audio tracking device. |
地址 |
San Jose CA US |