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Musical Transducer-less Indentification of Linear Loudspeaker Parameters

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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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AES - Audio Engineering Society