Sound Zones as an Optimal Filtering Problem

Research output: Contribution to journalConference article in JournalResearchpeer-review

Abstract

The design of so-called sound zones is a fairly old idea which has recently gained some research attention. The idea is to control a loudspeaker array to reproduce a desired sound field in certain regions. In this paper, we show how the sound zone control problem can be solved using techniques from speech enhancement. Specifically, we first describe in detail the recently introduced variable span linear filtering (VSLF) framework which unifies the popular optimal filtering and subspace-based approaches to speech enhancement. We then show how the sound zone control problem can be solved using the VSLF framework and how a number of well-known sound zone control methods can be viewed as special cases of this solution. We also discuss in detail the differences between the speech enhancement problem and the sound zone control problem and argue that the VSLF framework is actually even better suited for controlling sound zones than for enhancing speech.
Close

Details

The design of so-called sound zones is a fairly old idea which has recently gained some research attention. The idea is to control a loudspeaker array to reproduce a desired sound field in certain regions. In this paper, we show how the sound zone control problem can be solved using techniques from speech enhancement. Specifically, we first describe in detail the recently introduced variable span linear filtering (VSLF) framework which unifies the popular optimal filtering and subspace-based approaches to speech enhancement. We then show how the sound zone control problem can be solved using the VSLF framework and how a number of well-known sound zone control methods can be viewed as special cases of this solution. We also discuss in detail the differences between the speech enhancement problem and the sound zone control problem and argue that the VSLF framework is actually even better suited for controlling sound zones than for enhancing speech.
Original languageEnglish
JournalAsilomar Conference on Signals, Systems and Computers. Conference Record
Number of pages5
ISSN1058-6393
Publication statusPublished - 2019
Publication categoryResearch
Peer-reviewedYes
EventAsilomar Conference on Signals, Systems and Computers (ACSSC 2018) - Pacific Grove, United States
Duration: 28 Sep 201831 Oct 2018

Conference

ConferenceAsilomar Conference on Signals, Systems and Computers (ACSSC 2018)
CountryUnited States
CityPacific Grove
Period28/09/201831/10/2018

Download statistics

No data available
ID: 290626748