使用KEIL开发,庭审系统控制firmware,包括8个视频输入输出矩阵,8个音频输入输出矩阵,5个VGA输入,语音激励,视频拼接等-Use KEIL development, the trial system control firmware, including eight video input and output matrix, 8 audio input and output matrix, 5 VGA input, voice activation, video stitching