What is BS EN 62458 - Electroacoustic transducers about?
BS EN 62458 is an International Standard on Sound system equipment with a focus on the measurement of large signal parameters of electroacoustic transducers.
BS EN 62458 applies to transducers such as loudspeaker drive units, loudspeaker systems, headphones, micro-speakers, shakers and other actuators using either an electro-dynamical or electro-magnetic motor coupled with a mechanical suspension. The large signal behaviour of the transducer is modelled by a lumped parameter model considering dominant nonlinearities such as force factor, stiffness and inductance as shown in Figure 1. The standard defines the basic terms and parameters of the model, the methods of measurements and the way the results should be reported.
Who is BS EN 62458 - Electroacoustic transducers for?
BS EN 62458 on electroacoustic transducers measurement of large-signal parameters is useful for:
- Sound system equipment manufacturers
- Electroacoustic transducers manufacturers
- Music studios
- Music producers
Why should you use BS EN 62458 - Electroacoustic transducers?
Electro-mechanical-acoustical transducers such as loudspeaker drive units, loudspeaker systems, headphones, micro-speakers, shakers, and other actuators behave in a nonlinear manner at higher amplitudes. This limits the acoustical output and generates nonlinear signal distortion.
BS EN 62458 provides guidance on test signals, mounting conditions, climatic conditions and preconditioning that allow you to measure the large signal parameters effectively.
Compliance with BS EN 62458 allows you to improve the quality of loudspeaker drive units, loudspeaker systems, headphones, micro-speakers, shakers and other actuators.