1-bit digital signal processing device, recording device, and reproducing device

摘要

A switching device for switching between a 1-bit digital signal SIGMA DELTA modulated by a first sampling frequency and a 1-bit digital signal SIGMA DELTA modulated by a second sampling frequency lower than the first sampling frequency. The 1-bit digital signal SIGMA DELTA modulated by the second sampling frequency is transiently converted to the 1-bit digital signal SIGMA DELTA modulated by the first sampling frequency. The converted 1-bit digital signal or the 1-bit digital signal SIGMA DELTA modulated by the first sampling frequency is switched by cross-fading processing for realizing switching with suppressed noise generation at the time of switching.