| 摘要 |
<P>PROBLEM TO BE SOLVED: To efficiently visualize how a sound wave is propagated at a plurality of measurement points in an acoustic space, by using a plurality of acousto-optical transducers. <P>SOLUTION: A control device 20 generates a trigger signal SS a plurality of times while shifting an amount of delay from the start of production of a target sound to be visualized to the start of generation of the signal SS. A sound field visualizing device 100 has a plurality of acousto-optical transducers 10 (k) arranged like a matrix. A light emission control unit 220 of each acousto-optical transducer 10(k) stores a plurality of sample sequences obtained by sampling an output signal SS of a microphone 110 synchronously with the trigger signal SS, in a storage unit 180. The light emission control unit 220 generates a composite sample sequence where the plurality of sample sequences in the storage unit 180 are arranged in the order of lapse time from the start of generation of the trigger signal SS to sampling times of respective samples, and makes a light emitting unit 130 emit light in order with brightness corresponding to respective samples of the composite sample sequence. <P>COPYRIGHT: (C)2013,JPO&INPIT |
