| 摘要 |
PROBLEM TO BE SOLVED: To allow the transducer array in which control of the phase and amplitude of a transducer as a single body is accurate, sophisticated sound directivity control, and control such as stereophonic sensation of the sound and localization feeling of sound image as an array are facilitated. SOLUTION: The array main body 54 is made up of an enclosure 62 formed to be a box and in which lots of holes 60 are made to a font face and speaker units 52 each of which is set to each hole 60 made to the enclosure 62. Then an electrostatic speaker is adopted for each speaker unit 50 being a component of the array main body 54 and a diaphragm of each speaker unit 52 is made of a metallic foil whose thickness is 0.5μm or over and 30μm or below.
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