#Diaphragm

Operation of an Electret Condenser Microphone (ECM) As we discussed in our last blog Anatomy of an Electret Condenser Microphone, the basic structure of an Electret Condenser Microphone (ECM) is a pair of parallel plates, one of which is a moveable diaphragm, and another is a fixed back plate. A special layer of material called … Continue reading “Operation of an Electret Condenser Microphone (ECM)”

Microphones are transducers. Electret Condenser Microphones (ECMs) have both moving and stationary parts. Each part of an Electret Condenser Microphone (ECM) plays a significant role. Simply put microphones are transducers. As a transducer a microphone converts acoustic energy into electric energy. This is quite the opposite of a loudspeaker driver which converts electric energy into acoustic energy. … Continue reading “Anatomy of an Electret Condenser Microphone (ECM)”

Like any engineering venture, the choice of material for a loudspeaker diaphragm, also referred to as a cone due to its typical contour, comes with a set of trade-offs that will impact performance. Often, the benefit of a given material for one performance goal poses a setback for another purpose – or purposes. Even for … Continue reading “From the Loudspeaker Diaphragm”

Any loudspeaker driver is essentially an electric motor. It takes an electrical signal as input, generating motion (and sound) output. Unlike a battery’s steady input causing a wheel to continually spin, we vary the input with a signal generated from an original sound source. The motion starts with the interaction between a current-carrying conductor, the … Continue reading “A Loudspeaker Driver Breakdown”