| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sound reproduction unit with a noise-sensitive controller for allowing music-listening in a noisy environment, capable of performing the natural reproduction of music by solving problems that correction based on a known masking model induces listeners to feel the correction and unnaturalness, and that the amount of the correction becomes excessive. <P>SOLUTION: The sound reproduction unit is provided with a deciding part 10 for calculating the amount of correction on the basis of the known masking model, and deciding a correction parameter to an input signal 1 based on the calculated amount of correction so as to produce the correction of sound naturalness. When vehicle speed information is inputted, a correction filter 3 is altered on the basis of the result of the deciding part 10. <P>COPYRIGHT: (C)2008,JPO&INPIT |
