| 摘要 |
PROBLEM TO BE SOLVED: To reduce a difference that occurs in sound field reproduction without using an expensive speaker or a speaker with a large scale. SOLUTION: A sound field processing means 40 uses a sound field reproduction filter for high-pitch sounds and a sound field reproduction filter for low-pitch sounds which can reproduce a sound characteristic of an original sound field with a different speaker installed to perform the sound processing of a sound signal S reproduced by a sound reproducing means 41 in a reproduction sound field 21 where a speaker for low-pitch sounds and a speaker for high-pitch sounds are installed. An output sound is outputted from the speaker for high-pitch sounds to the sound signal obtained by applying the sound field reproduction filter for high-pitch sounds by the sound processing means 40, while an output sound is outputted from the speaker for low-pitch sounds to the sound signal obtained by applying the sound field reproduction filter for low-pitch sounds by the sound processing means 40. COPYRIGHT: (C)2009,JPO&INPIT
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