| 摘要 |
PROBLEM TO BE SOLVED: To provide an audio system that can reduce the number of wires and a wiring area. SOLUTION: In the audio system where an electronic volume 1 adjusts the sound volume of an audio signal outputted from a head unit and a front/rear fader 2 adjusts the balance between the front speaker signal and the rear speaker signal and provides the output of the resulting signals, a 2-input selector circuit 3 receives the front speaker signal and the rear speaker signal from the front/rear fader 2, selects either of the front speaker signal or the rear speaker signal by using a control signal A, outputs the selected signal, and the front/rear fader 2 adjusts the balance to compare the front speaker signal and the rear speaker signal, selects either of the front speaker signal or the rear speaker signal having a higher output level and outputs the selected signal as a non-fade signal. |
