To constitute a control system for remote controlling a receiving means according to a control command by outputting an acoustic signal to be transmitted and an acoustic control signal generated with an acoustic control signal generation means according to the control command to be transmitted.

An acoustic control signal transmitter 10 decides the control command to be transmitted to supply its control command to an encoder 12. The encoder 12 generates the acoustic control signal according to the control command supplied from a control command input part 11 to supply the acoustic control signal to a signal switch part 14. A microcomputer reads out acoustic control signal information from a storage part based on the control command supplied from the control command input part 11 to supply it to a D/A conversion part. The generated acoustic control signal is supplied to an amplifier part 1 as a time division multiplexed signal with the acoustic signal to be transmitted by the signal switch part 14 to be transmitted as a radio wave through an antenna 17.