| 摘要 |
A subwoofer ( 72 ) is equipped with a wireless receiver ( 80 ) to receive signals containing information for a Low Frequency Effects (LFE) channel and information for both surround channels. In one form, the LFE is added to one or both surround channels to provide a stereo surround signal (containing both surround channels including a multiplexed LFE channel). The subwoofer ( 72 ) utilizes the LFE channel, powers surround speakers ( 74, 76 ), and passes the surround signals to respective surround speakers. A receiver ( 66 ) multiplexes LFE signals into either one or both surround sound audio channels. A digital RF transmitter ( 70 ) of the receiver transmits the combined subwoofer/surround channels to the wireless receiver ( 80 ) of the subwoofer. The remote subwoofer is connected to a power source ( 78 ). The surround speakers ( 74, 76 ) are connected to the subwoofer so as to receive the surround channels and be powered thereby.
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