| 摘要 |
PURPOSE:To facilitate the adjustment by providing a microphone having a sound pipe in addition to a sound collection microphone to the device and taking a difference between sound signals of both the microphones so as to utilize a delay effect specific to a line microphone. CONSTITUTION:This microphone device is provided with a 1st microphone 1 of single directivity collecting a sound from a sound source and generating a 1st sound signal. Moreover, an unidirectional 2nd microphone 5d is provided at a position of a prescribed distance from the 1st microphone 1 opposite to the sound source. Then a sound pipe 5a of a prescribed length is connected to the 2nd microphone 5d to collect the sound from the sound source and the sound from the 1st microphone 1 to generate a 2nd sound signal. Then the delay effect specific to the line microphone is utilized by taking a difference between sound signals from both the microphones so as to facilitate the adjustment without taking the identity of the characteristics of both the microphones into account. |
