| 摘要 |
An audio signal processing device is provided whereby, from two systems of audio signals in which audio signals of multiple audio sources are included, the audio signals of the multiple audio sources can be suitably separated. The audio signal processing device transforms the two systems of audio signals into frequency region signals, calculates a level ratio or a level difference between corresponding frequency division spectrums and extracts and outputs frequency band components of and nearby values regarding the level ratio or the level difference. Predetermined transfer coefficients for each of two output channels are multiplied by the frequency region signals and respective output signals are added together. The resulting summed signals are inverse transformed to generate time-sequence signals.
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