Patent ID: 8520864

Claim:
A projector comprising: a first audio input section adapted to input a first sound signal; a second audio input section adapted to input a second sound signal; a first sound amplifier section adapted to amplify the first sound signal received through the first audio input section to generate a first amplified signal; a second sound amplifier section adapted to amplify the second sound signal received through the second audio input section to generate a second amplified signal; a first audio output section adapted to output a first sound based on the first amplified signal; a second audio output section adapted to output a second sound based on the second amplified signal; a determination section adapted to determine whether the first sound signal is being input to the first audio input section; and a selection section adapted to: input one of a right channel signal and a left channel signal of the second sound signal to the first sound amplifier section if input of the first sound signal to the first audio input section is stopped, and input the first sound signal, and not input the one of the right channel signal and the left channel signal of the second sound signal, to the first sound amplifier section if the first sound signal is being input to the first audio input section.