| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound collection/emission device which can extract a target sound from an intended sound source with an excellent SN ratio, even in a situation where sound is emitted.SOLUTION: A sound collection/emission device 10 has a sound collection unit 30 for capturing ambient sound by means of two microphones 4L, 4R, and a sound emission unit 20 for emitting sound from one or a plurality of speakers 3L, 3R. The sound collection/emission device 10 includes sound source separation means 33 for extracting a target sound from a sound source in a predetermined azimuth, on the basis of an input sound signal with which two microphones have captured ambient sound, sound emission non-target sound removing means 32 provided in a route leading to the sound source separation means, receiving a sound signal emitted from the sound emission unit 20, and removing non-target sound incident to the sound emitted from the speaker and captured by each microphone. The sound emission non-target sound removing means has a detailed configuration similar to that of an acoustic echo canceller. |
