| 摘要 |
PROBLEM TO BE SOLVED: To provide a karaoke device capable of giving directivity to singing voice, while keeping sound quality from low to high pitched sound. SOLUTION: A speaker array 5 includes: speaker units 51H to 58H for high pitched sound, speaker units 51M and 52M for middle pitched sound, speaker units 51L and 52L for low pitched sound, and speaker units 51F and 52F for full range sound. The speaker units 51H to 58H are specified with a distance between units d4=v/(2*f4), the speaker units 51M and 52M are specified with a distance between units d3=v/(2*f3), the speaker units 51L and 52L are specified with a distance between units d4=v/(2*f2), and the speaker units 51F and 52F are specified with a distance between units d4=v/(2*f1). The singing voice is beam-controlled and output from the speaker units 51H to 58H, 51M, 52M, 51L, 52L, 51F and 52F, and the other voice is output from the speaker units 51F and 52F. COPYRIGHT: (C)2008,JPO&INPIT
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