Patent ID: 8391509

Claim:
An audio-separating apparatus comprising: a receiving unit receiving a mixed sound signal; a first buffer unit being connected to the receiving unit and the mixed sound signal being stored as a first mixed sound signal in the first buffer unit; a second buffer unit connected to the receiving unit and the mixed sound signal being stored as a second mixed sound signal in the second buffer unit, and having a buffer capacity different from that of the first buffer unit; a noise reducing unit being connected to the first buffer unit and the second buffer unit for receiving the first mixed sound signal and the second mixed sound signal, and generating a first noise reduced sound signal and a second noise reduced sound signal respectively by using a noise reduction algorithm; a learning unit being connected to the first buffer unit and the noise reducing unit, and generating an audio separation parameter by means of a blind source separation algorithm by using the first mixed sound signal and the first noise reduced sound signal; and an audio-separating unit being connected to the noise reducing unit, the second buffer unit and the learning unit, and separating the mixed sound signal by using the second mixed sound signal, the second noise reduced sound signal and the audio separation parameter.