Method and apparatus for controlling the transition of an...

Details Method and apparatus for controlling the transition of an... Method and apparatus for controlling the transition of an...

G - Physics

10

L

G10L 19/00 (2006.01) H04B 1/66 (2006.01) H04J 3/17 (2006.01) H04M 7/00 (2006.01) H04Q 7/30 (2006.01)

Patent

CA 2301936

The invention relates to a method and apparatus for controlling the transition of a bypass capable codec between operative modes, based on a certain characteristic of the audio data signal processed by the codec. The apparatus relies on a control signal to determine when the codec will switch from one mode to another. This control signal reflects a characteristic of the audio data signal received at the apparatus, such as the type of speech activity or the format of the audio data signal. When in the active (non-bypass) mode, the apparatus relies on an additional control signal to switch to the inactive (bypass) mode. This additional control signal is received from a control unit at a remote codec that indicates that the remote codec is also bypass capable, hence the decoder at the first codec and the encoder at the remote codec can switch to the inactive mode to pass between them the compressed data frames.

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