| 摘要 |
PROBLEM TO BE SOLVED: To provide a channel divider that changes reproduced sound quality of a speaker system by appropriately setting an overlap of reproduced sounds from a woofer and a tweeter in the vicinity of a crossover frequency.SOLUTION: The channel divider comprises: a low pass filter and a high pass filter each for receiving an input audio signal; a bandpass filter for receiving the input audio signal, and setting a lower limit cutoff frequency equal to a cutoff frequency of the low pass filter and an upper limit cutoff frequency equal to a cutoff frequency of the high pass filter; a first multiplier and a second multiplier for outputting changed levels of an output of the bandpass filter; a first adder for adding an output of the low pass filter and the output of the first multiplier; and a second adder for adding an output of the high pass filter and the output of the second multiplier. An output of the first adder is a first output signal, and an output of the second adder is a second output signal. |
