抄録
A generating device of impulsive sound which contains low frequency components was developed. By discharging compressed air in a moment and inserting sound absorption materials into the tube used as an air tank, we could consequently generate an impulsive sound with high sound pressure level more than 150dB at 5 m distance and with wide frequency range of from 1 Hz to 1000 Hz. This paper reports the overview of this device and some experimental results obtained by using an impulsive low frequency sound.
