Interactions in a multiple voice coil loudspeaker

Y. Huang, Simon Busbridge, Peter A. Fryer

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

Abstract

A seven-bit digital multiple voice coil loudspeaker and constant current driver has been constructed and evaluated. Two's compliment coding offers the best compromise between complexity, excessive power consumption and distortion due to base-line drift. The effect of motion impedance and mutual coupling in a multiple coil system is found to magnify the effective impedance of an individual coil by its weighting in the binary representation. This effect places an unreasonable demand on the output impedance of the driver unless damping is controlled, which can most effectively be achieved by a shorted voice coil. Optimum damping occurs when the damping resistance is equal to minus the resistance of an individual coil
Original languageEnglish
Title of host publication106th AES Convention
Place of PublicationMunich
PublisherAES
Pages0-0
Number of pages1
Publication statusPublished - 1 May 1999
Event106th AES Convention - MOC Center, Munich, Germany, May 1999
Duration: 1 May 1999 → …

Conference

Conference106th AES Convention
Period1/05/99 → …

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Loudspeakers
Damping
Electric power utilization

Cite this

Huang, Y., Busbridge, S., & Fryer, P. A. (1999). Interactions in a multiple voice coil loudspeaker. In 106th AES Convention (pp. 0-0). Munich: AES.
Huang, Y. ; Busbridge, Simon ; Fryer, Peter A. / Interactions in a multiple voice coil loudspeaker. 106th AES Convention. Munich : AES, 1999. pp. 0-0
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Huang, Y, Busbridge, S & Fryer, PA 1999, Interactions in a multiple voice coil loudspeaker. in 106th AES Convention. AES, Munich, pp. 0-0, 106th AES Convention, 1/05/99.

Interactions in a multiple voice coil loudspeaker. / Huang, Y.; Busbridge, Simon; Fryer, Peter A.

106th AES Convention. Munich : AES, 1999. p. 0-0.

Research output: Chapter in Book/Conference proceeding with ISSN or ISBNConference contribution with ISSN or ISBN

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N2 - A seven-bit digital multiple voice coil loudspeaker and constant current driver has been constructed and evaluated. Two's compliment coding offers the best compromise between complexity, excessive power consumption and distortion due to base-line drift. The effect of motion impedance and mutual coupling in a multiple coil system is found to magnify the effective impedance of an individual coil by its weighting in the binary representation. This effect places an unreasonable demand on the output impedance of the driver unless damping is controlled, which can most effectively be achieved by a shorted voice coil. Optimum damping occurs when the damping resistance is equal to minus the resistance of an individual coil

AB - A seven-bit digital multiple voice coil loudspeaker and constant current driver has been constructed and evaluated. Two's compliment coding offers the best compromise between complexity, excessive power consumption and distortion due to base-line drift. The effect of motion impedance and mutual coupling in a multiple coil system is found to magnify the effective impedance of an individual coil by its weighting in the binary representation. This effect places an unreasonable demand on the output impedance of the driver unless damping is controlled, which can most effectively be achieved by a shorted voice coil. Optimum damping occurs when the damping resistance is equal to minus the resistance of an individual coil

M3 - Conference contribution with ISSN or ISBN

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EP - 0

BT - 106th AES Convention

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Huang Y, Busbridge S, Fryer PA. Interactions in a multiple voice coil loudspeaker. In 106th AES Convention. Munich: AES. 1999. p. 0-0