Reproduction apparatus, for signal processing digital audio signals composed of one-bit data, uses a signal processing unit coupled to a low-pass filter to process a signal, based on the characteristic selected

摘要

The reproduction apparatus reproduces a digital audio signal composed of one-bit data sampled at a frequency of fs (Hz) from a recording medium. A signal processing unit (12) conditions the signal, before it is passed through a low-pass filter (13), which has a cut-off frequency above the audio band. A frequency selector (15,16) picks one of a variety of different frequency characteristics during the user's operation.