| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a sound collection device capable of equally extracting levels of all sound sources while maintaining sound quality even if a plurality of sound sources are present within a target area.SOLUTION: If there is a difference in power of a target area sound source between beamformer outputs of microphone arrays, each target area sound source component can be estimated by changing a value of a target area sound correction coefficient. Average power of target area sound sources included in data after sound collection processing with respect to the target area is calculated and the power of the target area sound source is adjusted so as to be the equal power level to target power (e.g., power of a target area sound source with maximum power).</p> |
