| 摘要 |
PROBLEM TO BE SOLVED: To provide a sound pickup device and method that suppresses a background noise component from being picked up even when intense background noise is present at a periphery of the sound source of a target sound.SOLUTION: A sound pickup device 100 includes: directivity generation parts 2-1, 2-2 which generate directivity in a direction to a target area for outputs of microphone arrays MA1, MA2; a target area sound extraction part 6 which extracts a target area sound from outputs of the directivity generation parts 2-1, 2-2 while suppressing components of a non-target area sound; a coherence calculation part 7 which calculates and adds coherence of each frequency from the outputs of the directivity generation parts 2-1, 2-2; an area sound determination part 8 which determines whether the target area sound is present using the coherence addition value; and output means of outputting the target area sound when it is determined that the target area sound is present and not outputting the target area sound when not.SELECTED DRAWING: Figure 1 |
