In the design of mobile sound systems an estimation of power consumption must be made in order to choose a battery of appropriate size and cost. However poor methods for power estimation tend to result in large and costly batteries. This paper aims to present a more precise method for estimating power consumption for a vented box sound system. Instead of simplifying a loudspeaker system as a purely ohmic resistance, its mechanical and acoustic parameters are used to create a state space model. Despite deviations at high frequencies, the state space model is at least twice as accurate at estimating the power consumption than simplifying the speaker as a resistor.
|Title of host publication||Proceedings of the 142nd Audio Engineering Convention Convention|
|Number of pages||10|
|Publisher||Audio Engineering Society|
|Publication status||Published - 2017|
|Event||142nd Audio Engineering Society Convention - Berlin, Germany|
Duration: 20 May 2017 → 23 May 2017
|Conference||142nd Audio Engineering Society Convention|
|Period||20/05/2017 → 23/05/2017|
Madsen, F. S., Thorsen, S., Iversen, N. E., & Knott, A. (2017). Model for evauluating power consumption of vented box loudspeakers. In Proceedings of the 142nd Audio Engineering Convention Convention Audio Engineering Society.