| 摘要 |
<P>PROBLEM TO BE SOLVED: To change a head transfer function for signal processing at sound signal reproduction in response to the state of a sound recorder at sound signal acquirement. <P>SOLUTION: A sound reproducer includes: a computing means used for particularly computing a relative place to the reference place of each virtual sound-collection place of one or more microphones determined on the basis of each angle and amplification degree of one or more microphones acquired by a first acquiring means, wherein the computing means determines the virtual sound-collection place as a place farther from an origin as the amplification degree becomes larger and as a place nearer from the origin as the amplification degree becomes smaller on axes extended from the origin with angles to the reference axis; a second acquiring means acquiring the head transfer functions corresponding to each relative place of one or more of the microphones computed by the computing means; and a generation means generating a pseudo surround sound signal based on one or more sound signals acquired by the first acquiring means by using the head transfer function acquired by the second acquiring means. <P>COPYRIGHT: (C)2011,JPO&INPIT |
