What is a acoustic baffle

In the speaker, the acoustic baffle can increase the sound radiation power of the speaker cone. In the sonar transducer array, the baffle usually refers to the sound insulation board installed behind the transducer array element. It is made of anti-sound material (foam plastic, foam rubber or air box with ribs, etc.) or sound-absorbing material (sound-absorbing rubber, etc.) attached to a certain streamline (flat, cylindrical, parabolic, etc.) An acoustic structure formed on steel plate. Installed at a specified distance behind the transducer array element, in addition to increasing the sound source of the transmitting transducer matrix, if used as a receiving transducer, it can also suppress the noise interference from behind the transducer, such as this Ship propeller noise, etc.