VOICE SIGNAL PROCESSING DEVICE

摘要

PROBLEM TO BE SOLVED: To eliminate a noise caused by rotation of a disk with a simple circuit constitution in a voice signal processing device recording a voice signal in a medium on a disk. SOLUTION: Rotation of a disk 1 is detected by a number of rotations detecting circuit 2, and parameters are generated by a parameter generating circuit 3 using this rotation. A filter 5 processing a voice signal is controlled according to these parameters. The filter 5 eliminates a noise caused by rotation of a disk with simple circuit by giving optimum parameters corresponding to the number of rotations of the disk 1.