Patent ID: 7130428
Filing Date: 2006-10-31
Classification: H03G,H04S

Abstract:
1. A picked-up-sound reproducing method for picking up a sound present in a first sound field and reproducing the picked-up sound in a second sound field, said picked-up-sound reproducing method comprising: detecting a sound pressure present in said first sound field and a sound pressure reproduced in said second sound field to produce a first detected sound pressure; detecting a sound pressure with which the sound present in said first sound field picked up in said first sound field and reproduced in said second sound field is picked up in said second sound field to produce a second detected sound pressure; adjusting a sound pressure to be reproduced in said second sound field such that the sound pressure present in said first sound field and the sound pressure to be reproduced in said second sound field assume a predetermined relationship by detecting a sound pressure difference between the first detected sound pressure and the second detected sound pressure, and equalizing an acoustical power in the first sound field received by an entire wall surface of the first sound field and an acoustical power radiated from a wall surface in the second sound field such that the sound pressure difference is minimized, wherein the sound pressure present in said first sound field is used as a reference value in adjusting the sound pressure to be reproduced in said second sound field.