A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters

Taewoong Lee; Jesper Kjær Nielsen; Jesper Rindom Jensen; Mads Græsbøll Christensen

doi:10.1109/ICASSP.2018.8462477

A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters

Taewoong Lee, Jesper Kjær Nielsen, Jesper Rindom Jensen, Mads Græsbøll Christensen

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

25 Citations (Scopus)

459 Downloads (Pure)

Abstract

Sound zones are typically created using Acoustic Contrast Control (ACC), Pressure Matching (PM), or variations of the two. ACC maximizes the acoustic potential energy contrast between a listening zone and a quiet zone. Although the contrast is maximized, the phase is not controlled. To control both the amplitude and the phase, PM instead minimizes the difference between the reproduced sound field and the desired sound field in all zones. On the surface, ACC and PM seem to control sound fields differently, but we here demonstrate they are actually extreme special cases of a much more general framework. The framework is inspired by the variable span linear filtering framework for speech enhancement. Using this framework, we demonstrate that 1) ACC gives the best contrast, but the highest signal distortion in the bright zone, and 2) PM gives the smallest signal distortion in the bright zone, but the worst contrast. Aside from showing this mathematically, we also demonstrate this via a small toy example.

Original language	English
Title of host publication	2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Publisher	IEEE
Publication date	13 Sept 2018
Pages	491-495
ISBN (Print)	978-1-5386-4657-1
ISBN (Electronic)	978-1-5386-4658-8
DOIs	https://doi.org/10.1109/ICASSP.2018.8462477
Publication status	Published - 13 Sept 2018
Event	2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) - Calgary, Canada Duration: 15 Apr 2018 → 20 Apr 2018 https://2018.ieeeicassp.org/

Conference

Conference	2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Country/Territory	Canada
City	Calgary
Period	15/04/2018 → 20/04/2018
Internet address	https://2018.ieeeicassp.org/

Series	I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings
ISSN	1520-6149

Keywords

Sound zones
Joint diagonalization
Variable span linear filter
Speech enhancement
Personal sound

Access to Document

10.1109/ICASSP.2018.8462477

tlee_etal_VAST_ICASSP2018Accepted author manuscript, 380 KB

AUB Link

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

VAST: Signal processing for sound zones
Lee, T., Nielsen, J. K. & Christensen, M. G.
15/03/2017 → 25/04/2020
Project: Research

Cite this

@inproceedings{af3aa2fd6230422da9155128873c9aff,

title = "A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters",

abstract = "Sound zones are typically created using Acoustic Contrast Control (ACC), Pressure Matching (PM), or variations of the two. ACC maximizes the acoustic potential energy contrast between a listening zone and a quiet zone. Although the contrast is maximized, the phase is not controlled. To control both the amplitude and the phase, PM instead minimizes the difference between the reproduced sound field and the desired sound field in all zones. On the surface, ACC and PM seem to control sound fields differently, but we here demonstrate they are actually extreme special cases of a much more general framework. The framework is inspired by the variable span linear filtering framework for speech enhancement. Using this framework, we demonstrate that 1) ACC gives the best contrast, but the highest signal distortion in the bright zone, and 2) PM gives the smallest signal distortion in the bright zone, but the worst contrast. Aside from showing this mathematically, we also demonstrate this via a small toy example.",

keywords = "Sound zones, Joint diagonalization, Variable span linear filter, Speech enhancement, Personal sound",

author = "Taewoong Lee and Nielsen, {Jesper Kj{\ae}r} and Jensen, {Jesper Rindom} and Christensen, {Mads Gr{\ae}sb{\o}ll}",

year = "2018",

month = sep,

day = "13",

doi = "10.1109/ICASSP.2018.8462477",

language = "English",

isbn = "978-1-5386-4657-1",

series = "I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings",

publisher = "IEEE",

pages = "491--495",

booktitle = "2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)",

address = "United States",

note = "2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), ICASSP ; Conference date: 15-04-2018 Through 20-04-2018",

url = "https://2018.ieeeicassp.org/",

}

Lee, T, Nielsen, JK, Jensen, JR & Christensen, MG 2018, A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters. in 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings, pp. 491-495, 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Calgary, Alberta, Canada, 15/04/2018. https://doi.org/10.1109/ICASSP.2018.8462477

A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters. / Lee, Taewoong; Nielsen, Jesper Kjær; Jensen, Jesper Rindom et al.
2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE, 2018. p. 491-495 (I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings).

Research output: Contribution to book/anthology/report/conference proceeding › Article in proceeding › Research › peer-review

TY - GEN

T1 - A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters

AU - Lee, Taewoong

AU - Nielsen, Jesper Kjær

AU - Jensen, Jesper Rindom

AU - Christensen, Mads Græsbøll

PY - 2018/9/13

Y1 - 2018/9/13

N2 - Sound zones are typically created using Acoustic Contrast Control (ACC), Pressure Matching (PM), or variations of the two. ACC maximizes the acoustic potential energy contrast between a listening zone and a quiet zone. Although the contrast is maximized, the phase is not controlled. To control both the amplitude and the phase, PM instead minimizes the difference between the reproduced sound field and the desired sound field in all zones. On the surface, ACC and PM seem to control sound fields differently, but we here demonstrate they are actually extreme special cases of a much more general framework. The framework is inspired by the variable span linear filtering framework for speech enhancement. Using this framework, we demonstrate that 1) ACC gives the best contrast, but the highest signal distortion in the bright zone, and 2) PM gives the smallest signal distortion in the bright zone, but the worst contrast. Aside from showing this mathematically, we also demonstrate this via a small toy example.

AB - Sound zones are typically created using Acoustic Contrast Control (ACC), Pressure Matching (PM), or variations of the two. ACC maximizes the acoustic potential energy contrast between a listening zone and a quiet zone. Although the contrast is maximized, the phase is not controlled. To control both the amplitude and the phase, PM instead minimizes the difference between the reproduced sound field and the desired sound field in all zones. On the surface, ACC and PM seem to control sound fields differently, but we here demonstrate they are actually extreme special cases of a much more general framework. The framework is inspired by the variable span linear filtering framework for speech enhancement. Using this framework, we demonstrate that 1) ACC gives the best contrast, but the highest signal distortion in the bright zone, and 2) PM gives the smallest signal distortion in the bright zone, but the worst contrast. Aside from showing this mathematically, we also demonstrate this via a small toy example.

KW - Sound zones

KW - Joint diagonalization

KW - Variable span linear filter

KW - Speech enhancement

KW - Personal sound

U2 - 10.1109/ICASSP.2018.8462477

DO - 10.1109/ICASSP.2018.8462477

M3 - Article in proceeding

SN - 978-1-5386-4657-1

T3 - I E E E International Conference on Acoustics, Speech and Signal Processing. Proceedings

SP - 491

EP - 495

BT - 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

PB - IEEE

T2 - 2018 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)

Y2 - 15 April 2018 through 20 April 2018

ER -

A Unified Approach to Generating Sound Zones Using Variable Span Linear Filters

Abstract

Conference

Keywords

Access to Document

AUB Link

Fingerprint

Projects

VAST: Signal processing for sound zones

Cite this