To obtain a method and a circuit for resampler which reduce the number of times of operation like multiplication processing and reduce the number of multipliers, ROMs, etc., and can reduce the scale of ROMs and can be realized with small-scale hardware.

On the basis of symmetry in T and -T directions of a waveform 1 of a SINC function at times other than time intervals [0, T] and [0, -T] from reference time 0, a counted value from a time T up to a prescribed time is stored in plural ROMs to reduce the number of times of multiplication, and the number of multipliers is reduce to perform quick operation. On the basis of symmetry of the waveform, a counted value up to 1/2 time in each time interval is stored in a ROM to reduce the size of the ROM.