| 摘要 |
<p>To let listeners hear pseudo-stereo sounds with significantly small unpleasant feeling. In this invention, an input signal xo(t) obtained by digitizing a monaural analog input signal S0 from the outside and partitioning the resultant digital signal for each one frame of a predetermined period of time is inputted to a sound source separation section 2. A sound source separation process based on generalized harmonic analysis is performed by the sound source separation section 2 to separate the input signal xo(t) into a sound source signal DS and residual signal DT. Subsequently, the sound source signal DS and residual signal DT are converted from digital to analog form and amplified by an output processing section 3 to generate output signals S1L and S1R. The sound of the output signals S1L and SIR is perceived by the listener as a pseudo-stereo sound via a headphone.</p> |
