Summed efficiency-method for efficient vented box speaker design

Niels E. Iversen; Theis Christiansen; Anders N. Bjørnskov; Lars P. Petersen

Summed efficiency-method for efficient vented box speaker design

Niels E. Iversen^*, Theis Christiansen, Anders N. Bjørnskov, Lars P. Petersen

^*Corresponding author for this work

ICEPower A/S

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

Abstract

Loudspeakers are inefficient and conventional design methods does not consider the efficiency in the design process. With the rise of Digital Signal Processing (DSP) the frequency response can be corrected with pre-filtering. Based on a frequency domain analysis of vented box enclosures this paper proposes a new method, the Summed efficiency-method (Ση-method), for designing vented box enclosures. The method focusses on mapping the efficiency and SPL output vs. volume and tuning frequency enabling the designer to perform knowledge based trade-off decisions in the design process. A design example shows how the method can be used to improve the efficiency with over 70% compared to a conventional maximum flat alignment for a compact Public Adress (PA) subwoofer application.

Original language	English
Title of host publication	Proceedings of Audio Engineering Society Convention 147
Publisher	Audio Engineering Society
Publication date	1 Jan 2019
Publication status	Published - 1 Jan 2019
Event	147th Audio Engineering Society Convention - New York, United States Duration: 16 Oct 2019 → 19 Oct 2019 Conference number: 147

Conference

Conference	147th Audio Engineering Society Convention
Number	147
Country/Territory	United States
City	New York
Period	16/10/2019 → 19/10/2019

OpenUrl availability

Full text

Cite this

@inproceedings{96c843e96cb441f6a0e261209c344f66,

title = "Summed efficiency-method for efficient vented box speaker design",

abstract = "Loudspeakers are inefficient and conventional design methods does not consider the efficiency in the design process. With the rise of Digital Signal Processing (DSP) the frequency response can be corrected with pre-filtering. Based on a frequency domain analysis of vented box enclosures this paper proposes a new method, the Summed efficiency-method (Ση-method), for designing vented box enclosures. The method focusses on mapping the efficiency and SPL output vs. volume and tuning frequency enabling the designer to perform knowledge based trade-off decisions in the design process. A design example shows how the method can be used to improve the efficiency with over 70% compared to a conventional maximum flat alignment for a compact Public Adress (PA) subwoofer application.",

author = "Iversen, {Niels E.} and Theis Christiansen and Bj{\o}rnskov, {Anders N.} and Petersen, {Lars P.}",

year = "2019",

month = jan,

day = "1",

language = "English",

booktitle = "Proceedings of Audio Engineering Society Convention 147",

publisher = "Audio Engineering Society",

note = "147th Audio Engineering Society Convention, AES 2019 ; Conference date: 16-10-2019 Through 19-10-2019",

}

TY - GEN

T1 - Summed efficiency-method for efficient vented box speaker design

AU - Iversen, Niels E.

AU - Christiansen, Theis

AU - Bjørnskov, Anders N.

AU - Petersen, Lars P.

N1 - Conference code: 147

PY - 2019/1/1

Y1 - 2019/1/1

N2 - Loudspeakers are inefficient and conventional design methods does not consider the efficiency in the design process. With the rise of Digital Signal Processing (DSP) the frequency response can be corrected with pre-filtering. Based on a frequency domain analysis of vented box enclosures this paper proposes a new method, the Summed efficiency-method (Ση-method), for designing vented box enclosures. The method focusses on mapping the efficiency and SPL output vs. volume and tuning frequency enabling the designer to perform knowledge based trade-off decisions in the design process. A design example shows how the method can be used to improve the efficiency with over 70% compared to a conventional maximum flat alignment for a compact Public Adress (PA) subwoofer application.

AB - Loudspeakers are inefficient and conventional design methods does not consider the efficiency in the design process. With the rise of Digital Signal Processing (DSP) the frequency response can be corrected with pre-filtering. Based on a frequency domain analysis of vented box enclosures this paper proposes a new method, the Summed efficiency-method (Ση-method), for designing vented box enclosures. The method focusses on mapping the efficiency and SPL output vs. volume and tuning frequency enabling the designer to perform knowledge based trade-off decisions in the design process. A design example shows how the method can be used to improve the efficiency with over 70% compared to a conventional maximum flat alignment for a compact Public Adress (PA) subwoofer application.

M3 - Article in proceedings

BT - Proceedings of Audio Engineering Society Convention 147

PB - Audio Engineering Society

T2 - 147th Audio Engineering Society Convention

Y2 - 16 October 2019 through 19 October 2019

ER -

Summed efficiency-method for efficient vented box speaker design

Abstract

Conference

OpenUrl availability

Fingerprint

Cite this