| 摘要 |
PURPOSE: To recognize interactivity so that it can be directly generated from the center of a video display by providing an amplifier equipped with right and left speakers, first and second ambiance speakers, and right side and left side channels. CONSTITUTION: Right and left channels from L and R stereo sources are respectively inputted to buffers 10 and 13, an equalizer 14 outputs the signal through a left side primary power amplifier 20 to the positive input of a left side speaker 1, and an equalizer 22 outputs the signal through a right side primary power amplifier 24 to the positive input of a right side speaker 2. Also, an equalizer 26 outputs the signal to an ambiance power amplifier 30, and the output of the power amplifier 30 is inputted to the positive input of a left side ambiance speaker 3 and the negative input of a right side ambiance speaker 4. Thus, a viewer can always notice interactivity and similar materials just like it can be generated from the center of a visualized area by the speaker 3. |
