| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an automatic sound quality controller capable of automatically reproducing multi-channel music to be sufficiently listenable in a din environment such as inside a car with an inexpensive hardware configuration. <P>SOLUTION: A calculation section 18 calculates a compensation amount required for compensating masking to an audio signal caused by noise based on a digital converted multi-channel audio signal input from a first A/D converter section 11 and a digital converted noise signal input from a second A/D converter section 13. The multi-channel audio signal input from the first A/D converter section 11 is compensated by an equalizer section 19 and a level control section 20, converted into an analog signal by a D/A converter section 15, amplified by an amplifier section 16, and output as sound by an output section 17. <P>COPYRIGHT: (C)2009,JPO&INPIT |
