| 摘要 |
To provide an audio signal processing system, a surround signal generation method and so on that are capable of obtaining stable output signal level and feeling of soundscape without depending on an audio input signal. DSP 5 inputs audio input signals respectively corresponding to a plurality of channels, and generates surround signals that have reflection sound and reverberate sound and that respectively correspond to the plurality of channels. The DSP 5 generates the surround signal corresponding to one channel based on an audio input signal corresponding to the one channel, a variable number changing within the predetermined range in response to a signal level of the surround signal at a preceding predetermined time corresponding to the one channel, and the audio input signal corresponding to the other channel.
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