| 摘要 |
<P>PROBLEM TO BE SOLVED: To alleviate confusion caused in a sense of sound field by a listener at a reproduction side in the case of a direction of a microphone is changed during recording when sound is recorded by using a multi-directional microphone system, transmitted to the reproduction side and the reproduction side reproduces the sound by a speaker or a headphone. <P>SOLUTION: A multi-microphone system 2 wherein three microphones 1a, 1b, 1c being directional microphones or functioning as the directional microphones are radially arranged at an angular interval of 120 degrees at a recording side is provided with a rotation detection means 11. A composite processing section 13 at the recording side or a reproduction processing section 15 at the reproduction side applies processing to output sound signals Sa, Sb, and Sc of the microphones 1a, 1b, 1c in a way of canceling a change in directions of the microphones 1a, 1b, 1c on the basis of rotation information Sr from the rotation detection means 11. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
