当发生这样的情况时，尤其是当活跃的说话者被排除在外时，该信桥将指 示作为发送的音频信号中的一个的一部分发送给一个或多个端点。
When this occurs, particularly when an active talker is being excluded, the bridge transmits an indication to one or more of theendpoints as part of one of the transmitted audio signals.
这样得到的多声道音频信号具有极大地降低的比特 率，用于有效的发送或存储。
The result is a multichannel audio signal having a significantly lower bit rate for efficient transmission or storage.
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