Audio & Acoustic Signal Processing

Audio and Acoustics

Acoustics and audio play vital roles in our lives. Our research focuses on spatial audio and acoustics for real-world applications in telecommunications, telepresence, entertainment, hearing aids, assisted hearing, noise cancellation over large areas, ultrasound imaging and localisation of acoustic sources. Sound spatialisation requires thinking about sound in three dimensions, including its orientation, directivity, trajectories, and spatial characteristics of the environment such as reverberation.

Our work ranges from theoretical research, to implementation challenges and experimental investigations. With the support of an ANU Major Equipment Committee Grant, we have established a cutting-edge spatial audio laboratory to conduct this research. We develop theory on sound field modelling for different kinds of sound sources in complex acoustic environments. This leads to work in design and analysis of microphone arrays, speaker arrays for spatial sound synthesis, estimation and equalisation of room acoustics, sound source localisation and separation, and active noise control over regions.

We have strong track records with competitive grants, including ARC Discovery, ARC Linkage and DECRA, and publication in high-impact peer-reviewed journals and refereed conferences in the field. We also collaborate with international academics and industry partners, such as Dolby Australia, Sony Japan, Facebook, Australian Signals Directorate, ACT government on research projects.

Explore our research projects below and if you’d like to discuss opportunities for collaboration or funding, please email us


Announcements/Group News:

1. AASP weekly seminar: HDR student Amy Bastine in AASP group  presented her recent work in Nov. 25th at 1:00-- 2:00 PM. https://cecs.anu.edu.au/events/modelling-room-reve...

2. AASP weekly seminar: HDR student Xiaoli Tang in AASP group is going to present her recent work in Dec. 2nd at 1:00-- 2:00 PM. Welcome to join us through Zoom. 

          Title: Active Noise Control Over Multiple Zones: Adaptive Algorithm in Time Domain

          Abstract: Spatial active noise control (ANC) and multizone soundfield reproduction have been active research problems that use multiple loudspeakers and multiple error microphones to control regions of interest. In this seminar, we investigate the intersection of the two topics, that is multizone adaptive ANC systems. To be more specific, we derive a mathematical model based on multichannel Filtered-x Least Mean Square (FxLMS) algorithm to achieve simultaneous noise reduction over multiple regions using a single ANC system. We also build and simulate the model over two regions using two different quantities of secondary sources. The simulation results validate the theory and demonstrate the feasibility of multizone adaptive ANC.

         Bio: Xiaoli Tang is a first year HDR student working in the Audio & Acoustic Signal Processing Group, the research school of Electrical, Energy, and Materials Engineering (RSEEME) at the Australian National University (ANU). Her research interests include spatial multizone active noise control (ANC) and zone balancing and enhancement. 

         Zoom link: https://us04web.zoom.us/j/75811928216?pwd=R3VVNDZ6bUMyRDlnb2t0ajc2Tmlwdz09

         Password: AASP

 

Academic staff

Dr Noman Akbar »

Research Fellow

Assoc Professor Glenn Dickins »

Architect of Convergence, Dolby Laboratories

Dr Prasanga Samarasinghe »

FERL Fellow, Senior Lecturer

Dr Jihui (Aimee) Zhang »

Research Fellow

Student

Ms Amy Bastine »

PhD Student

Hanwen Bi »

Masters of Philosophy Student

Lachlan Birnie »

PhD Candidate

Mr Yonggang Hu »

PhD Student

Mr Fei Ma »

Research Fellow

Wageesha Mananperi »

PhD Candidate

Miss Huiyuan Sun »

PhD Candidate

Xiaoli Tang »

PhD Candidate

Jiarui Wang »

PhD Candidate

Longfei Yan »

PhD Candidate

Mr Huanyu Zuo »

PhD Student

Affiliates

Visitors

Mr Yu Maeno »

Campus Visitor

Recent Journal Articles

 

2020

 

  1. H. Zuo, P. N. Samarasinghe and T. D. Abhayapala  

Particle Velocity Assisted Three Dimensional Sound Field Reproduction Using a Modal-Domain Approach

IEEE/ACM Transactions on Audio, Speech, and Language Processing

      2. H. Zuo, P. N. Samarasinghe and T. D. Abhayapala

Intensity Based Spatial Soundfield Reproduction Using an Irregular Loudspeaker Array

IEEE/ACM Transactions on Audio, Speech, and Language Processing

      3. J. Zhang, N. Murata, Y. Maeno, P. N. Samarasinghe, T. D. Abhayapala and Y. Mitsufuji

Coherence-based performance analysis on noise reduction in multichannel active noise control systems

The Journal of Acoustic Society of America

 

 

2019

  1. H. Zuo, P.N. Samarasinghe, T.D. Abhayapala and G. Dickins

Spatial sound intensity vectors in spherical harmonic domain

The Journal of the Acoustical Society of America

  1. H. Zuo, P.N. Samarasinghe, T.D. Abhayapala and G. Dickins

Erratum: Spatial sound intensity vectors in spherical harmonic domain

The Journal of the Acoustical Society of America

  1. J. Zhang, T. D. Abhayapala, W. Zhang, and P. N. Samarasinghe

Active noise control over space: A subspace method for performance analysis

Applied Sciences Special Issue Active and Passive Noise Control

  1. F. Ma, W. Zhang, and T. D. Abhayapala

Real-time separation of non-stationary sound fields on spheres

            The Journal of the Acoustical Society of America

  1. F. Ma, W. Zhang, and T. D. Abhayapala

Active control of outgoing broadband noise fields in rooms

              IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. Y. Maeno, Y. Mitsufuji, P. N. Samarasinghe, N. Murata and T. D. Abhayapala

Spherical-Harmonic-Domain Feedforward Active Noise Control Using Sparse Decomposition of Reference Signals from Distributed Sensor Arrays

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. A. Fahim, P. N. Samarasinghe and T. D. Abhayapala

Multi-Source DOA Estimation Through Pattern Recognition of the Modal Coherence of a Reverberant Soundfield

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. L. I. Birnie, T. D. Abhayapala and P. N. Samarasinghe

Reflection Assisted Sound Source Localization Through a Harmonic Domain MUSIC Framework

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. W. Zhang, P. N. Samarasinghe, and T. D. Abhayapala

Parameterization of the binaural room transfer function using modal decomposition

The Journal of the Acoustical Society of America

  1. X. Wu, D. S. Talagala, W. Zhang, and T. D. Abhayapala

Individualized Interaural Feature Learning and Personalized Binaural Localization Model

Applied Sciences Special Issue Mobile Spatial Audio

 

2018

  1. F. Ma, W. Zhang, T.D. Abhayapala

Active control of outgoing noise fields in rooms

The Journal of the Acoustical Society of America

  1. P.N. Samarasinghe, T.D. Abhayapala, Y. Lu, H. Chen, G. Dickins

Spherical harmonics based generalized image source method for simulating room acoustics

The Journal of the Acoustical Society of America

  1. W. Zhang, C. Hofmann, M. Buerger, T. D. Abhayapala, and W. Kellermann

Spatial noise-field control with online secondary path modelling: A wave-domain approach

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. S. Yan, X. Zhou, N. Yang, A. L. Swindlehurst, and T.D. Abhayapala

Secret Channel Training to Enhance Physical Layer Security with a Full-Duplex Receiver

IEEE Transactions on Information Forensics & Security

  1. A. Fahim, P.N. Samarasinghe, and T.D. Abhayapala

Single-Channel Speech Dereverberation in Noisy Environment for Non-Orthogonal Signals

Acta Acustica united with Acustica

  1. Z. A. Shaban, G. Seco, H. Wymeersch, X. Zhou and T.D. Abhayapala

Error Bounds for Uplink and Downlink 3D Localization in 5G mmWave Systems

IEEE Transactions on Wireless Communications

  1. M. O'Connor, B. Kleijn, G. Zhang, and T.D. Abhayapala

Function Splitting and Quadratic Approximation of the Primal-Dual Method of Multipliers for Distributed Optimization over Graphs 

IEEE Transactions on Signal and Information Processing over Networks

  1. A. Fahim, P.N. Samarasinghe, and T.D. Abhayapala

PSD Estimation and Source Separation in a Noisy Reverberant Environment using a Spherical Microphone Array

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. T.D. Abhayapala, P.N. Samarasinghe, and H. Chen

A planar array of differential microphones for 3D sound capture

IEEE/ACM Transactions on Audio, Speech, and Language Processing

  1. J. Zhang, T.D. Abhayapala, P.N. Samarasinghe, W. Zhang, and S. Jiang

Active Noise Control Over Space: A Wave Domain Approach

IEEE/ACM Transactions on Audio, Speech, and Language Processing

 

2017

  1. M. Buerger, T.D. Abhayapala, C. Hofmann, H. Chen, and W. Kellermann

The spatial Coherence of Noise Fields Evoked by Continuous Source Distributions

Journal of Acoustic Society of America

  1. P.N. Samarasinghe, T.D. Abhayapala, and W. Kellermann

Acoustic Reciprocity: An Extension to Spherical Harmonics Domain

Journal of Acoustic Society of America

  1. W. Zhang, P.N. Samarasinghe, H. Chen, and T.D. Abhayapala

Surround by Sound: A Review of Spatial Audio Recording and Reproduction

Applied Sciences

  1. F. Bashar and T.D. Abhayapala

Performance Analysis of Spatially Distributed MIMO Systems

IET Communications

  1. P.N. Samarasinghe, T.D. Abhayapala, and H. Chen

Estimating the Direct-to-Reverberant Energy Ratio Using a Spherical Harmonics-Based Spatial Correlation Model

IEEE/ACM Trans. Audio, Speech, Language Process.

  1. H. Chen, T.D. Abhayapala, P.N. Samarasinghe, and W. Zhang

Direct-to-reverberant Energy Ratio Estimation using a First Order Microphone

IEEE/ACM Trans. Audio, Speech, Language Process.

 

2016

  1. J. Zhang, T.D. Abhayapala, P.N. Samarasinghe, W. Zhang and S. Jiang

Multichannel Active Noise Control for Spatially Sparse Noise Fields

Journal of Acoustic Society of America

  1. S. Yan, X. Zhou, N. Yang B. He, and T.D. Abhayapala

Artificial-Noise-Aided Secure Transmission in Wiretap Channels with Transmitter-Side Correlation

IEEE Trans. on Wireless Communications

  1. W. Zhang, T.D. Abhayapala, T. Betlehem, and F.M. Fazi

Analysis and control of multi-zone sound Field reproduction using modal-domain approach

Journal of Acoustic Society of America

  1. P.N. Samarasinghe, T.D. Abhayapala, and W. Zhang

Recent Advances on Active Noise Control Inside Automobile Cabins

IEEE Signal Processing Magazine

  1. F. Bashar, T.D. Abhayapala, and S.Salehin

Dimensionality of Spatio-Temporal Broadband Signals Observed Over Finite Spatial and Temporal Windows

IEEE Trans. Wireless Communications

2015

  1. Z. A. Shaban , X. Zhou, and T.D. Abhayapala

A Novel TOA-based Mobile Localization Technique under Mixed LOS/NLOS Conditions for Cellular Networks

IEEE Trans. on Vehicular Technology

  1. H. Chen, T.D. Abhayapala, and W. Zhang

Theory and design of compact hybrid microphone arrays on two-dimensional planes for three-dimensional soundfield analysis

Journal of Acoustic Society of America

  1. P.N. Samarasinghe, T.D. Abhayapala, M. Poletti, and T. Betlehem

An Efficient Parameterization of the Room Transfer Function

IEEE/ACM Trans. Audio, Speech, Language Process.

  1. B. Bu, T.D. Abhayapala, C. Bao, and W. Zhang

Parameterization of the Three-dimensional Room Transfer Function in Horizontal Plane

Journal of Acoustic Society of America

  1. B. He, X. Zhou, and T. D. Abhayapala

Achieving Secrecy without Knowing the Number of Eavesdropper Antennas

IEEE Trans. on Wireless Communications

  1. M.A. Poletti, T. Betlehem, and T.D. Abhayapala

Higher-Order Loudspeakers and Active Compensation for Improved 2D Sound Field Reproduction in Rooms

Journal of the Audio Engineering Society

  1. T. Betlehem, W. Zhang, M.A. Poletti, and T.D. Abhayapala

Personal Sound Zones: Delivering interface-free audio to multiple listeners

IEEE Signal Processing Magazine

  1. M. Zhang, R.A. Kennedy, and T.D. Abhayapala

Empirical Determination of Frequency Representation in Spherical Harmonics-Based HRTF Functional Modeling

IEEE/ACM Trans. Audio, Speech, Language Process.

2014

  1. P Leong, T.D. Abhayapala and T.A. Lamahewa

Multiple 3D Far-Field/Near-Field Moving Target Localization Using Wideband Echo Chirp Signals

IEEE Trans. on Signal Processing

  1. D.S. Talagala, W. Zhang and T.D. Abhayapala

Efficient Multi-Channel Adaptive Room Compensation for Spatial Soundfield Reproduction using a Modal Decomposition

IEEE/ACM Trans. Audio, Speech, Language Process.

  1. M. Poletti, T Betlehem, and T.D. Abhayapala

Comparison of Sound Reproduction using Higher Order Loudspeakers and Equivalent Line Arrays in Free-field Conditions

Journal of Acoustic Society of America

  1. W. Zhang and T.D. Abhayapala

Three Dimensional Sound Field Reproduction using Multiple Circular Loudspeaker Arrays: Functional Analysis Guided Approach 

IEEE/ACM Trans. Audio, Speech, Language Process.

  1. P. Leong, S. Arulampalam, T.A. Lamahewa, and T.D. Abhayapala

Gaussian-Sum Cubature Kalman Filter with Improved Robustness for Bearings-only Tracking

IEEE Signal Processing Letters

  1. D.S. Talagala, W. Zhang, T.D. Abhayapala, and A. Kamineni

Binaural sound source localization using the frequency diversity of the head-related transfer function

Journal of Acoustic Society of America

  1. P.N. Samarasinghe, T.D. Abhayapala, and M. Poletti

Wavefield Analysis over Large Areas using Distributed Higher Order Microphones

IEEE/ACM Trans. Audio, Speech, Language Process.

2013

  1. B. He, X. Zhou and T. D. Abhayapala

Wireless Physical Layer Security with Imperfect Channel State Information: A Survey

ZTE Communication

  1. P Leong, T.D. Abhayapala and T.A. Lamahewa

Multiple Target Localization Using Wideband Echo Chirp Signals

IEEE Trans. on Signal Processing

  1. D.S. Talagala, W. Zhang and T.D. Abhayapala

Broadband DOA Estimation Using Sensor Arrays on Complex-Shaped Rigid Bodies

IEEE Trans. Audio, Speech, Language Process.

  1. P Leong, S. Arulampalam, T.A. Lamahewa, and T.D. Abhayapala

A Gaussian-Sum Based Cubature Kalman Filter for Bearings-Only Tracking

IEEE Transactions on Aerospace and Electronic Systems

2012

  1. P Leong, T.A. Lamahewa and T.D. Abhayapala

Framework to Calculate Level Crossing Rate and Average Fade Duration in 2-D and 3-D Scattering Environments

IET Communications

  1. S.M. A. Salehin and T.D. Abhayapala

Frequency-radial Duality based Photoacoustic Image Reconstruction

Journal of Acoustic Society of America

  1. M. Poletti, T.D. Abhayapala, and P.N. Samarasinghe

Interior and Exterior Sound Field Control using Two Dimensional Higher-order Variable-directivity Sources

Journal of Acoustic Society of America

  1. W. Zhang, M. Zhang, R.A. Kennedy, and T.D. Abhayapala

On High Resolution Head-related Transfer Function Measurements: An Efficient Sampling Scheme

IEEE Trans. Audio, Speech and Language Process.

2011

  1. Y. J. Wu and T.D. Abhayapala

Spatial Multizone Soundfield Reproduction: Theory and Design

IEEE Trans. Audio, Speech and Language Process.

  1. A. Gupta and T.D. Abhayapala

Three Dimensional Soundfield Reproduction using Multiple Circular Loudspeaker Arrays

IEEE Trans. Audio, Speech and Language Process.

  1. S.M. A. Salehin and T.D. Abhayapala

Localizing lung sounds: Eigen basis decomposition for localizing sources within a circular array of sensors

Journal of Signal Processing Systems

  1. T.D. Abhayapala and D.B.Ward

Wideband Beamspace Processing using Orthogonal Modal Beamformers

Journal of Signal Processing Systems

  1. M. Poletti and T.D. Abhayapala

Interior and Exterior Sound Field Control using General Two Dimensional First-order Sources

Journal of Acoustic Society of America

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

02
Dec
2020
Spatial active noise control (ANC) and multizone...
23 Oct 2020
Noisy open plan offices full of workers hunched over desks while wearing noise cancelling headphones could soon be a thing of the past, thanks to new research from...
Dr Prasanga Samarasinghe
24 Jan 2019
Research Engineer Dr Prasanga Samarasinghe and recent graduate Hugh Johnson receive prestigious Fullbright scholarships.
5 Oct 2018
ANU researchers have found a way to cancel out noise providing some much-needed relief to anyone working or living in a noisy environment.
Dr Prasanga Samarasinghe
3 Aug 2018
Wondering what the future might sound like? Dr Prasanga Samarasinghe and her team from the Australian National University (ANU) Audio and Acoustic Signal Processing...
Abdullah Fahim
29 Jun 2018
Abdullah Fahim, a PhD student from the Australian National University (ANU) Research School of Electrical, Energy and Materials Engineering will travel to the United...
Thushara, Yu and Hanchi
4 Aug 2017
Partnership will see University’s breakthrough spatial audio research applied to Sony’s future products and services.
SONY Japan

We have been actively collaborating with Sony Corporation Japan since 2016 through (i) Funded projects (sponsored research and consultancy), (ii) visiting Engineers from Sony at ANU and (iii) PhD student internships. Our collaborative work has mainly focused on "Active noise control to be used for noise reduction over space using Spherical Harmonic Domain/Wave Domain Signal Processing.”

 

Facebook (Reality Labs, Seattle)

We have been actively collaborating with Facebook Reality Labs since 2019 through (i) Funded Projects (sponsored research) and (ii) PhD student internships. Our collaborative work has mainly focused on "Translation of Spatial Immersion for Binaural Reproduction".

Dolby Australia

We have been actively collaborating with Dolby Laboratories (Sydney and San Francisco) since 2014 through (i) Funded projects (ARC Linkage Project) and (ii) PhD student internships.  Our collaborative work has mainly focused on "Simulating Spatial Soundfield Test environments for various Audio Device Testing".

 

Australian Signals Directorate

We have been actively collaborating with Australian Signals Directorate  since 2019 through a Funded Research Project on "Advanced audio noise characterization and filtration for accelerated Automated Speech Recognition"

 

ACT Government

We have collaborated with the Environment, Planning and Sustainable Development Directorate of the ACT Government since 2019 for collaborative research on "Automatic Recognition of Bird Calls" using Audio recordings from ACT Nature Reserves.

Dataset

Updated:  1 June 2019/Responsible Officer:  Head of School/Page Contact:  CECS Marketing