Sound generation is typically done using loudspeakers. But those devices are not efficient when used to produce high sound pressure level, especially at low frequency. In order to do so, electro-pneumatic sound sources have been identified. This paper presents the study of a device with a frequency range of [50 700] Hz and powered with compressed air at [10 60] Psi. Firstly, analytical simulations are conducted to build a predictive model of the source based on the characteristics of the device and the supplied pressure. Secondly an experimental investigation of the sound pressure level, depending on the frequency of the sound emitted and the pressure supplied to the source, is presented. It is shown that the sound pressure level measured inside the ducts reaches more than 170 dB thus confirming that electropneumatic sources can produce high sound pressure levels and can consequently be adapted to be used as an actuator in industrial application such as active noise control or sound field reproduction. Further works will be needed to improve the predictive models of this kind of source.
