Patent ID: 11922965
Assignee: NIPPON TELEGRAPH AND TELEPHONE CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 16:
17. The direction-of-arrival estimation method according to claim 15, the method further comprising:
estimating a sound source count;
estimating and outputting a time frequency mask for sound source separation in addition to the time frequency mask for the noise suppression;
determining the sound source direction-of-arrival based on an acoustic intensity vector formed by applying a time frequency mask formed of a product of a time frequency mask formed by subtracting the time frequency mask for the noise suppression from 1 and the time frequency mask for the sound source separation to the acoustic intensity vector from which the reverberation portion has been subtracted; and
updating a parameter used for the association based on the sound source count in addition to the derived sound source direction-of-arrival and the label.