Audio processing device and method

摘要

An audio processing device (10) includes a setting section (11) that sets a reproduction sampling frequency F play and a recording sampling frequency F rec higher than F play , a digital-to-analogue converter (12) that based on F play converts a sound source signal that is a digital signal into a reproduction signal that is an analogue signal, an analogue-to-digital converter (13) that based on F rec converts a recording signal that is an analogue signal into an input signal that is a digital signal, a signal separator (15) that separates the input signal into a low region signal contained in a band of less than F play and a high region signal contained in a band of the F play and higher, and a breakup detector (16) that detects whether or not breakup is occurring in the reproduced sound based on power of the high region signal, or based on a difference or ratio between power of the high region signal and power of the low region signal.