ORCID Profile
0000-0002-5589-4203
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Research Topics
In Research Link Australia (RLA), "Research Topics" refer to ANZSRC FOR and SEO codes. These topics are either sourced from ANZSRC FOR and SEO codes listed in researchers' related grants or generated by a large language model (LLM) based on their publications.
Top 5 Research Topics
ANZSRC Field of Research (FoR)
Signal Processing | Electrical and Electronic Engineering | Environmental assessment and monitoring | Conservation and biodiversity | Audio processing | Computer vision and multimedia computation |
ANZSRC Socio-Economic Objective (SEO)
Computer Hardware and Electronic Equipment not elsewhere classified | Scientific Instruments | Consumer Electronic Equipment (excl. Communication Equipment) | Expanding Knowledge in Engineering | Health and Support Services not elsewhere classified | Expanding Knowledge in Technology
Related Links
Publications
Room transfer function measurement from a directional loudspeaker
Publisher: IEEE
Date: 09-2016
Multi-Source DOA Estimation Through Pattern Recognition of the Modal Coherence of a Reverberant Soundfield
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
On room impulse response between arbitrary points: An efficient parameterization
Publisher: IEEE
Date: 05-2014
Spatial noise cancellation inside cars: Performance analysis and experimental results
Publisher: IEEE
Date: 10-2015
Synthesis of room transfer function over a region of space by multiple measurements using a higher-order directional microphone
Publisher: IEEE
Date: 07-2014
3D soundfield reproduction using higher order loudspeakers
Publisher: IEEE
Date: 05-2013
PSD Estimation and Source Separation in a Noisy Reverberant Environment Using a Spherical Microphone Array
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 09-2018
Mixed Source Sound Field Translation for Virtual Binaural Application With Perceptual Validation
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2021
Intensity Based Spatial Soundfield Reproduction Using an Irregular Loudspeaker Array
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Active noise control over space: A subspace method for performance analysis
Publisher: MDPI AG
Date: 25-03-2019
DOI: 10.3390/APP9061250
Abstract: In this paper, we investigate the maximum active noise control performance over a three-dimensional (3-D) spatial space, for a given set of secondary sources in a particular environment. We first formulate the spatial active noise control (ANC) problem in a 3-D room. Then we discuss a wave-domain least squares method by matching the secondary noise field to the primary noise field in the wave domain. Furthermore, we extract the subspace from wave-domain coefficients of the secondary paths and propose a subspace method by matching the secondary noise field to the projection of primary noise field in the subspace. Simulation results demonstrate the effectiveness of the proposed algorithms by comparison between the wave-domain least squares method and the subspace method, more specifically the energy of the loudspeaker driving signals, noise reduction inside the region, and residual noise field outside the region. We also investigate the ANC performance under different loudspeaker configurations and noise source positions.
Active Noise Control over Multiple Regions: Performance Analysis
Publisher: IEEE
Date: 05-2020
Recent Advances in Active Noise Control Inside Automobile Cabins: Toward quieter cars
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 11-2016
In-car noise field analysis and multi-zone noise cancellation quality estimation
Publisher: IEEE
Date: 12-2015
Multichannel active noise control for spatially sparse noise fields
Publisher: Acoustical Society of America (ASA)
Date: 12-2016
DOI: 10.1121/1.4971878
Abstract: Multi-channel active noise control (ANC) is currently an attractive solution for the attenuation of low-frequency noise fields, in three-dimensional space. This paper develops a controller for the case when the noise source components are sparsely distributed in space. The anti-noise signals are designed as in conventional ANC to minimize the residual errors but with an additional term containing an ℓl norm regularization applied to the signal magnitude. This results in that only secondary sources close to the noise sources are required to be active for cancellation of sparse noise fields. Adaptive algorithms with low computational complexity and faster convergence speeds are proposed.
Spherical harmonic representation of the observed directional wave front in the time domain
Publisher: Acoustical Society of America (ASA)
Date: 11-2022
DOI: 10.1121/10.0015044
Abstract: Sound field reproduction algorithms require loudspeaker directivity, which is usually measured at discrete frequencies. A time domain model of loudspeaker directivity benefits broadband applications. This Letter proposes the concept of a directional wave front in the time domain, which could be linked to loudspeaker impulse responses measured on a spherical surface. The observed signal in the time domain at the boundary of a spherical region due to a propagating directional wave front is illustrated using a geometric model. Based on the geometric model, the spherical harmonic decomposition of the observed signal in the time domain is also derived.
Coherence-based performance analysis on noise reduction in multichannel active noise control systems
Publisher: Acoustical Society of America (ASA)
Date: 09-2020
DOI: 10.1121/10.0001938
Abstract: Active noise control (ANC) over an extended spatial region using multiple microphones and multiple loudspeakers has become an important problem. The maximum noise reduction (NR) potential over the control area is a critical evaluation variable as it indicates the fundamental limitation of a given ANC system. In this paper, a method to mathematically formulate the NR potential for any given multichannel ANC systems is developed. First, the residual error in the multichannel feedforward ANC system is formulated, and then the multiple-input-multiple-output problem is decomposed into the parallel-channel problem. The total energy of the residual error is further decomposed into three different terms representing (i) the signal coherence between the reference signals and error signals, (ii) the filter, and (iii) the system null space. The experimental results validate the proposed evaluation method and illustrate the effectiveness on the maximum NR performance evaluation for given systems. Using the proposed analyzing method, more insight into the contribution of each component to the NR potential can be achieved.
Decoupled Multiple Speaker Direction-of-Arrival Estimator Under Reverberant Environments
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Active Noise Control over Space: A Wave Domain Approach
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 04-2018
Surround by Sound: A Review of Spatial Audio Recording and Reproduction
Publisher: MDPI AG
Date: 20-05-2017
DOI: 10.3390/APP7050532
A Preliminary Investigation on Frequency Dependant Cues for Human Emotions
Publisher: MDPI AG
Date: 22-05-2022
Abstract: The recent advances in Human-Computer Interaction and Artificial Intelligence have significantly increased the importance of identifying human emotions from different sensory cues. Hence, understanding the underlying relationships between emotions and sensory cues have become a subject of study in many fields including Acoustics, Psychology, Psychiatry, Neuroscience and Biochemistry. This work is a preliminary step towards investigating cues for human emotion on a fundamental level by aiming to establish relationships between tonal frequencies of sound and emotions. For that, an online perception test is conducted, in which participants are asked to rate the perceived emotions corresponding to each tone. The results show that a crossover point for four primary emotions lies in the frequency range of 417–440 Hz, thus consolidating the hypothesis that the frequency range of 432–440 Hz is neutral from human emotion perspective. It is also observed that the frequency dependant relationships between emotion pairs Happy—Sad, and Anger—Calm are approximately mirrored symmetric in nature.
Secondary channel estimation in spatial active noise control systems using a single moving higher order microphone
Publisher: Acoustical Society of America (ASA)
Date: 03-2022
DOI: 10.1121/10.0009837
Abstract: Spatial active noise control (ANC) systems focus on minimizing unwanted acoustic noise over continuous spatial regions by generating anti-noise fields with secondary loudspeakers. Conventionally, error microphones are necessary inside the region to measure the channels from the secondary loudspeakers to the error microphones and record the residual sound field during the noise control. These error microphones highly limit the implementation of spatial ANC systems because of their impractical geometry and obstruction to the users from accessing the region. Recent advances, such as virtual sensing, focus on ANC with microphones placed away from the region. While these techniques relax the usage of error microphones during the noise control, an error microphone array remains necessary during the secondary channel estimation. In this paper, we propose a method to estimate secondary channels without using an error microphone array. Instead, a moving higher order microphone is applied to obtain the secondary channels from the secondary loudspeakers to the region of interest, which includes all desired error microphone locations. By simulation, we show that the proposed method is robust against various measuring errors introduced by the movement of the microphone and is suitable for the secondary channel estimation in spatial ANC systems.
A Realistic Multiple Circular Array System for Active Noise Control Over 3D Space
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Spherical-Harmonic-Domain Feedforward Active Noise Control Using Sparse Decomposition of Reference Signals from Distributed Sensor Arrays
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
A time-domain nearfield beamformer with spherical harmonic decomposition
Publisher: Acoustical Society of America (ASA)
Date: 09-2023
DOI: 10.1121/10.0021068
Multiple Source Direction of Arrival Estimations Using Relative Sound Pressure Based MUSIC
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2021
Semi-Supervised Multiple Source Localization Using Relative Harmonic Coefficients Under Noisy and Reverberant Environments
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Spatial soundfield recording over a large area using distributed higher order microphones
Publisher: IEEE
Date: 10-2011
Particle Velocity Assisted Three Dimensional Sound Field Reproduction Using a Modal-Domain Approach
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Wavefield Analysis Over Large Areas Using Distributed Higher Order Microphones
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 03-2014
Drone Audition: Sound Source Localization Using On-Board Microphones
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2022
Sparse complex FxLMS for active noise cancellation over spatial regions
Publisher: IEEE
Date: 03-2016
Evaluation of spatial active noise cancellation performance using spherical harmonic analysis
Publisher: IEEE
Date: 09-2016
Reflection Assisted Sound Source Localization Through a Harmonic Domain MUSIC Framework
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 2020
Interior and exterior sound field control using two dimensional higher-order variable-directivity sources
Publisher: Acoustical Society of America (ASA)
Date: 05-2012
DOI: 10.1121/1.3699192
Abstract: Spatial sound reproduction systems aim to produce a desired sound field over a volume of space. At high frequencies, the number of loudspeakers required is prohibitive. This paper shows that the use of loudspeakers with up to Nth order directivity allows reproduction over N times the bandwidth and produces a significantly attenuated exterior sound field. If the constraint on exterior cancellation of the field is removed, reproduction is possible over approximately 2N times the bandwidth. The use of higher order loudspeakers thus allows a significant reduction in the number of loudspeaker units, at the expense of increased complexity in each unit. For completeness, results are included for the generation of an exterior field with or without cancellation of the interior field.
Extraction of exterior field from a mixed sound field for 2D height-invariant sound propagation
Publisher: IEEE
Date: 09-2016
An Efficient Parameterization of the Room Transfer Function
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Date: 12-2015
Related Organisations
No related organisations have been discovered for Prasanga Samarasinghe.
Related Funding Activities
Linkage Projects - Grant ID: LP160100379
Start Date: 04-2017
End Date: 12-2020
Amount: $318,000.00
Funder: Australian Research Council
View Funded ActivityDiscovery Projects - Grant ID: DP180102375
Start Date: 05-2018
End Date: 12-2022
Amount: $420,055.00
Funder: Australian Research Council
View Funded ActivityDiscovery Early Career Researcher Award - Grant ID: DE230101567
Start Date: 07-2024
End Date: 06-2027
Amount: $453,054.00
Funder: Australian Research Council
View Funded Activity