Performance Analysis of Digital loudspeaker Arrays

Bo Rohde Pedersen; Fotios Kontomichos; John Mourjopoulos

Performance Analysis of Digital loudspeaker Arrays

Bo Rohde Pedersen, Fotios Kontomichos, John Mourjopoulos

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

An analysis of digital loudspeaker arrays shows that the ways in which bits are mapped to the drivers influence the quality of the audio result. Specifically, a "bit-summed" rather than the traditional "bit-mapped" strategy greatly reduces the number of times drivers make binary transitions per period of the input frequency. Detailed simulations compare the results for a 32-loudspeaker array with a similar configuration with analog excitation of the drivers. Ideally, drivers in digital arrays should be very small and span a small area, but that sets limits on the low-frequency response.
Udgivelsesdato: September 2008

Original language	English
Journal	Journal of the Audio Engineering Society
Volume	56
Issue number	9
Pages (from-to)	667-683
Number of pages	16
ISSN	1549-4950
Publication status	Published - 2008

Keywords

Digital loudspeakers
Efficency

AUB Link

Search for the material in Aalborg University Library's search engine

Cite this

@article{f6fa95b0db3511dda016000ea68e967b,

title = "Performance Analysis of Digital loudspeaker Arrays",

abstract = "An analysis of digital loudspeaker arrays shows that the ways in which bits are mapped to the drivers influence the quality of the audio result. Specifically, a {"}bit-summed{"} rather than the traditional {"}bit-mapped{"} strategy greatly reduces the number of times drivers make binary transitions per period of the input frequency. Detailed simulations compare the results for a 32-loudspeaker array with a similar configuration with analog excitation of the drivers. Ideally, drivers in digital arrays should be very small and span a small area, but that sets limits on the low-frequency response. Udgivelsesdato: September 2008",

keywords = "Digital loudspeakers, Efficency",

author = "Pedersen, {Bo Rohde} and Fotios Kontomichos and John Mourjopoulos",

year = "2008",

language = "English",

volume = "56",

pages = "667--683",

journal = "Journal of the Audio Engineering Society",

issn = "1549-4950",

publisher = "Audio Engineering Society",

number = "9",

}

TY - JOUR

T1 - Performance Analysis of Digital loudspeaker Arrays

AU - Pedersen, Bo Rohde

AU - Kontomichos, Fotios

AU - Mourjopoulos, John

PY - 2008

Y1 - 2008

N2 - An analysis of digital loudspeaker arrays shows that the ways in which bits are mapped to the drivers influence the quality of the audio result. Specifically, a "bit-summed" rather than the traditional "bit-mapped" strategy greatly reduces the number of times drivers make binary transitions per period of the input frequency. Detailed simulations compare the results for a 32-loudspeaker array with a similar configuration with analog excitation of the drivers. Ideally, drivers in digital arrays should be very small and span a small area, but that sets limits on the low-frequency response. Udgivelsesdato: September 2008

AB - An analysis of digital loudspeaker arrays shows that the ways in which bits are mapped to the drivers influence the quality of the audio result. Specifically, a "bit-summed" rather than the traditional "bit-mapped" strategy greatly reduces the number of times drivers make binary transitions per period of the input frequency. Detailed simulations compare the results for a 32-loudspeaker array with a similar configuration with analog excitation of the drivers. Ideally, drivers in digital arrays should be very small and span a small area, but that sets limits on the low-frequency response. Udgivelsesdato: September 2008

KW - Digital loudspeakers

KW - Efficency

M3 - Journal article

SN - 1549-4950

VL - 56

SP - 667

EP - 683

JO - Journal of the Audio Engineering Society

JF - Journal of the Audio Engineering Society

IS - 9

ER -