Synchronized Swept-Sine: Theory, Application, and Implementation - October 2015
Effect of Microphone Number and Positioning on the Average of Frequency Responses in Cinema Calibration - October 2015
The Measurement and Calibration of Sound Reproducing Systems - July 2015
Charge Movements on the Stretched Membrane in a Circular Electrostatic Push-Pull Loudspeaker
An analysis is made of the charge movements on the membrane of an electrostatic push-pull loudspeaker. It is shown that in steady-state operation (harmonic exitation) the movement of charge causes two important effects: harmonic distortion and a net change of static membrane charge. The former effect is found to be of minor interest in properly designed loudspeakers, whereas the latter causes the steady-state frequency characteristics to be input-level dependent. Measurements show that this level dependence may reach values well above 1-dB deviation from strictly linear behavior. A theoretical model is presented from which the charge distribution in a circular electrostatic push-pull loudspeaker can be calculated. The theoretical results are shown to conform with measurements.
Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!
This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.