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Principles of sound radiation |
Keith R. Holland |
1.1 Introduction
Loudspeakers are transducers that generate sound in response to an electrical input signal. The mechanism behind this conversion varies from loudspeaker to loudspeaker, but in most cases involves some form of motor assembly attached to a diaphragm. The alternating force generated by the motor assembly, in response to the electrical signal, causes the diaphragm to vibrate. This in turn moves the air in contact with the diaphragm and gives rise to the radiation of sound. This chapter is concerned with the acoustic part of that transduction mechanism; that is, the radiation of sound by the vibrating diaphragm.
The radiation of sound by vibrating surfaces is a common part ...
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