Endpoint detection apparatus for sound source and method thereof

摘要

An apparatus for detecting endpoints of sound signals when sound sources vocalized from a remote site are processed even if a plurality of speakers exists and an interference sound being input from a direction different from a direction of one speaker, and a method thereof, wherein in an environment in which a plurality of sound sources exists, the existence and the length of the sound source being input according to each direction is determined and the endpoint is found, thereby improving the performance of the post-processing, and speech being input from a direction other than a direction of speech from a speaker vocalized at a remote area from a sound source collecting unit is distinguished while the speech from the speaker is being recorded, thereby enabling a remote sound source recognition without restriction on the installation region of a microphone.

主权项

1. An apparatus for detecting endpoints of a plurality of sound signals from a plurality of sound sources, the apparatus comprising:
a plurality of microphones configured to receive the plurality of sound signals from the plurality of sound sources; a sound source position detecting unit configured to detect positions of the plurality of sound sources from the sound signals received through the plurality of microphones; a sound source position change determination unit configured to determine a change in position of the sound sources according to each direction by reading the positions of the plurality of sound sources detected through the sound source position detecting unit; a sound source maintenance time calculating unit configured to calculate a sound source maintenance time of the sound sources at a specific position by reading the positions of the plurality of sound sources detected through the sound source position detecting unit; and an endpoint determination unit configured to determine endpoints of the plurality of sound sources by use of the sound source maintenance time calculated by the sound source maintenance time calculating unit and the change in position of the sound sources according to each direction determined by the sound source position change determination unit.