THE VIDEO TELEPHONE AUDIO CODEC BIT-RATE AUTOMATED CONTROL APPARATUS

摘要

The present disclosure relates to an audio codec bitrate automatic control apparatus of a video telephone. The apparatus of the present invention encodes and outputs video data inputted from a video input device such as a camera according to H.263 recommendation, and compares the data amount and the default value in frame units by receiving the encoded video data. A code amount checker for selecting a bit rate of the audio codec, an audio codec for encoding audio data input from an audio input device such as a microphone according to the G.723 recommendation according to the bit rate selected by the code amount checker, and each configuration A control unit for controlling the interconnection of the multiplexers; a multiplex / separation unit for multiplexing and outputting the control signal and the encoded video data and audio data according to the H.223 recommendation; and the multiplexed control signals, video data and audio data It consists of a modem that transmits to the other party through the telephone line. Therefore, the present invention can reduce or increase the code amount of the audio data according to the code amount of the video data, thereby enabling the use of the transmission channel more efficiently than the conventional one, and providing an effect of improving the quality of the video telephone.