Acoustic echo canceller
    1.
    发明授权
    Acoustic echo canceller 有权
    声回波消除器

    公开(公告)号:US08411847B2

    公开(公告)日:2013-04-02

    申请号:US12136436

    申请日:2008-06-10

    摘要: Disclosed methods and systems measure acoustic responses to training signals activated prior to communication sessions. Profiles related to the acoustic responses are saved and adapted during communication sessions. Training signals may have uniform frequency distributions over a frequency range and may be in response to user inputs, timeouts, or predetermined events. In the next excessive divergence is detected, an adapted profile may be substituted by an original, trained profile.

    摘要翻译: 公开的方法和系统测量在通信会话之前激活的训练信号的声学响应。 在通信会话期间保存和调整与声响应相关的配置文件。 训练信号可以在频率范围上具有均匀的频率分布,并且可以响应于用户输入,超时或预定事件。 在下一个检测到过大的分歧时,适应的简档可以由原始的,训练的简档代替。

    Acoustic Echo Canceller
    2.
    发明申请
    Acoustic Echo Canceller 有权
    声学回声消除器

    公开(公告)号:US20090304177A1

    公开(公告)日:2009-12-10

    申请号:US12136436

    申请日:2008-06-10

    IPC分类号: H04L12/28

    摘要: Disclosed methods and systems measure acoustic responses to training signals activated prior to communication sessions. Profiles related to the acoustic responses are saved and adapted during communication sessions. Training signals may have uniform frequency distributions over a frequency range and may be in response to user inputs, timeouts, or predetermined events. In the next excessive divergence is detected, an adapted profile may be substituted by an original, trained profile.

    摘要翻译: 公开的方法和系统测量在通信会话之前激活的训练信号的声学响应。 在通信会话期间保存和调整与声响应相关的配置文件。 训练信号可以在频率范围上具有均匀的频率分布,并且可以响应于用户输入,超时或预定事件。 在下一个检测到过大的分歧时,适应的简档可以由原始的,训练的简档代替。