| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a noise suppression device where noise occurring with change in an effect coefficient is reduced with a simple constitution when an effect processing such as a filter processing is performed while acoustic equipment is operated. <P>SOLUTION: The device is provided with an effect processing means 102 in which the effect processing is performed on an input sound signal and sound data is created, a coefficient change means 103 changing the effect coefficient of the effect processing, a circular buffer memory means 104 storing sound data, a memory writing means 105 writing sound data after the effect processing into the circular buffer memory means 104, a coefficient change trigger means 106 creating a trigger for making the coefficient change means 103 change the effect coefficient, a sample interruption processing means 107 outputting an interruption signal at every audio sampling and means 108, 109 and 110 reading sound data based on the trigger and the interruption signal. <P>COPYRIGHT: (C)2004,JPO&NCIPI |
