Direct acoustic digital to analogue conversion with digital transducer array loudspeakers

Jorge Mendoza-López, Simon Busbridge, Peter A. Fryer

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

Abstract

A digital transducer array (DTA) loudspeaker which produces a quantised sound field directly from binary-weighted bit streams has been developed. Theoretical investigation shows that it is possible to generate an acoustic wavefront from an assemblage of air quanta provided that the basis functions are orthogonal. Other acoustic effects e.g. filtering are presented. Moving coil transducer frequency response measurements highlight its significance to the behaviour of the array by the use of current driving. Results obtained with newly developed stiff diamond diaphragms demonstrate the importance of the transient response to the conversion process. Further results and simulations are presented giving the DTA sound field distortion as functions of the bit stream processing algorithm as well as the array geometry.
Original languageEnglish
Title of host publication118th AES Convention Papers
Place of PublicationBarcelona
Pages0-0
Number of pages1
Publication statusPublished - 1 May 2005
Event118th AES Convention Papers - CCIB, Barcelona, Spain, 2005
Duration: 1 May 2005 → …

Conference

Conference118th AES Convention Papers
Period1/05/05 → …

Fingerprint

digital transducers
loudspeakers
analogs
acoustics
sound fields
orthogonal functions
transient response
diaphragms
frequency response
transducers
coils
diamonds
air
geometry
simulation

Cite this

Mendoza-López, J., Busbridge, S., & Fryer, P. A. (2005). Direct acoustic digital to analogue conversion with digital transducer array loudspeakers. In 118th AES Convention Papers (pp. 0-0). Barcelona.
Mendoza-López, Jorge ; Busbridge, Simon ; Fryer, Peter A. / Direct acoustic digital to analogue conversion with digital transducer array loudspeakers. 118th AES Convention Papers. Barcelona, 2005. pp. 0-0
@inproceedings{0e82ceceb01e4b5ba7cab5fcfa31e12c,
title = "Direct acoustic digital to analogue conversion with digital transducer array loudspeakers",
abstract = "A digital transducer array (DTA) loudspeaker which produces a quantised sound field directly from binary-weighted bit streams has been developed. Theoretical investigation shows that it is possible to generate an acoustic wavefront from an assemblage of air quanta provided that the basis functions are orthogonal. Other acoustic effects e.g. filtering are presented. Moving coil transducer frequency response measurements highlight its significance to the behaviour of the array by the use of current driving. Results obtained with newly developed stiff diamond diaphragms demonstrate the importance of the transient response to the conversion process. Further results and simulations are presented giving the DTA sound field distortion as functions of the bit stream processing algorithm as well as the array geometry.",
author = "Jorge Mendoza-L{\'o}pez and Simon Busbridge and Fryer, {Peter A.}",
year = "2005",
month = "5",
day = "1",
language = "English",
pages = "0--0",
booktitle = "118th AES Convention Papers",

}

Mendoza-López, J, Busbridge, S & Fryer, PA 2005, Direct acoustic digital to analogue conversion with digital transducer array loudspeakers. in 118th AES Convention Papers. Barcelona, pp. 0-0, 118th AES Convention Papers, 1/05/05.

Direct acoustic digital to analogue conversion with digital transducer array loudspeakers. / Mendoza-López, Jorge; Busbridge, Simon; Fryer, Peter A.

118th AES Convention Papers. Barcelona, 2005. p. 0-0.

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

TY - GEN

T1 - Direct acoustic digital to analogue conversion with digital transducer array loudspeakers

AU - Mendoza-López, Jorge

AU - Busbridge, Simon

AU - Fryer, Peter A.

PY - 2005/5/1

Y1 - 2005/5/1

N2 - A digital transducer array (DTA) loudspeaker which produces a quantised sound field directly from binary-weighted bit streams has been developed. Theoretical investigation shows that it is possible to generate an acoustic wavefront from an assemblage of air quanta provided that the basis functions are orthogonal. Other acoustic effects e.g. filtering are presented. Moving coil transducer frequency response measurements highlight its significance to the behaviour of the array by the use of current driving. Results obtained with newly developed stiff diamond diaphragms demonstrate the importance of the transient response to the conversion process. Further results and simulations are presented giving the DTA sound field distortion as functions of the bit stream processing algorithm as well as the array geometry.

AB - A digital transducer array (DTA) loudspeaker which produces a quantised sound field directly from binary-weighted bit streams has been developed. Theoretical investigation shows that it is possible to generate an acoustic wavefront from an assemblage of air quanta provided that the basis functions are orthogonal. Other acoustic effects e.g. filtering are presented. Moving coil transducer frequency response measurements highlight its significance to the behaviour of the array by the use of current driving. Results obtained with newly developed stiff diamond diaphragms demonstrate the importance of the transient response to the conversion process. Further results and simulations are presented giving the DTA sound field distortion as functions of the bit stream processing algorithm as well as the array geometry.

M3 - Conference contribution with ISSN or ISBN

SP - 0

EP - 0

BT - 118th AES Convention Papers

CY - Barcelona

ER -

Mendoza-López J, Busbridge S, Fryer PA. Direct acoustic digital to analogue conversion with digital transducer array loudspeakers. In 118th AES Convention Papers. Barcelona. 2005. p. 0-0