| 摘要 |
<P>PROBLEM TO BE SOLVED: To eliminate the possibility that a sound signal, corresponding to wireless transmission, is not outputted from any one of loudspeakers, even if wireless transmission has not been performed normally. <P>SOLUTION: An acoustic reproducing device conducts wired transmission, an N-channel sound signal outputted from a sound signal output means and an M-channel sound signal by wireless, wherein the acoustic reproducing device is equipped with a transmitting means for transmitting the M-channel speech signal by wireless, a receiving means for receiving the sound signal transmitted wirelessly, a reception information transmitting means for transmitting, by wireless, reception information showing that the receiving means has received the M-channel speech signal, a reception information receiving means for receiving the reception information transmitted wirelessly, and a sound signal combining means for combining M- and N-channel sound signals to generate an N-channel combined sound signal, and when the reception information receiving means has not received the reception information, the combined sound signal, generated by the sound signal combining means is subjected to wired transmission. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
