SIGNAL PROCESSING DEVICE, SIGNAL PROCESSING METHOD, SIGNAL PROCESSING PROGRAM, AND COMPUTER READABLE RECORDING MEDIUM

摘要

In this signal processing apparatus, a first-audio-parameter calculating unit calculates a first audio parameter based on two audio signals. A second-audio-parameter calculating unit calculates a second audio parameter based on the two audio signals. A surround-signal generating unit generates surround components to be respectively allocated to surround signals.