Session 3
3.1 MUSICAL TRANSDUCER-LESS IDENTIFICATION OF LINEAR LOUDSPEAKER PARAMETERS
BO ROHDE PEDERSEN(1), AND PER RUBAK(2)
(1) Department of Software and Electronics, Aalborg University, Esbjerg, Denmark. (2) Acoustic department, Aalborg University, Aalborg, Denmark.
In music systems system identification of linear loudspeaker parameters can be done online transducer-less using
the voice coil current as feedback from the loudspeaker. In this work a FIR model is tested using musical signals
both in simulation models and with a loudspeaker unit. The approach can find the voice coil resistance, the
resonance frequency and the damping factor. Considerations about the voice coil temperature are made.
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