Imperial College London

DrAlastairMoore

Faculty of EngineeringDepartment of Electrical and Electronic Engineering

Research Associate
 
 
 
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Contact

 

alastair.h.moore

 
 
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Location

 

809Electrical EngineeringSouth Kensington Campus

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Summary

 

Publications

Publication Type
Year
to

41 results found

Hafezi S, Moore AH, Naylor PA, 2017, MULTIPLE SOURCE LOCALIZATION USING ESTIMATION CONSISTENCY IN THE TIME-FREQUENCY DOMAIN, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 516-520, ISSN: 1520-6149

CONFERENCE PAPER

Hafezi S, Moore AH, Naylor PA, 2017, MULTI-SOURCE ESTIMATION CONSISTENCY FOR IMPROVED MULTIPLE DIRECTION-OF-ARRIVAL ESTIMATION, Conference on Hands-Free Speech Communications and Microphone Arrays (HSCMA), Publisher: IEEE, Pages: 81-85

CONFERENCE PAPER

Hafezi S, Moore AH, Naylor PA, 2017, Augmented Intensity Vectors for Direction of Arrival Estimation in the Spherical Harmonic Domain, IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, Vol: 25, Pages: 1956-1968, ISSN: 2329-9290

JOURNAL ARTICLE

Hafezi S, Moore AH, Naylor PA, 2017, Multiple DOA estimation based on estimation consistency and spherical harmonic multiple signal classification, European Signal Processing Conference, EUSIPCO 2017, Pages: 1240-1244

© EURASIP 2017. A common approach to multiple Direction-of- Arrival (DOA) estimation of speech sources is to identify Time- Frequency (TF) bins with dominant Single Source (SS) and apply DOA estimation such as Multiple Signal Classification (MUSIC) only on those TF bins. In the state-of-the-art Direct Path Dominance (DPD)-MUSIC, the covariance matrix, used as the input to MUSIC, is calculated using only the TF bins over a local TF region where only a SS is dominant. In this work, we propose an alternative approach to MUSIC in which all the SS-dominant TF bins for each speaker across TF domain are globally used to improve the quality of covariance matrix for MUSIC. Our recently proposed Multi-Source Estimation Consistency (MSEC) technique, which exploits the consistency of initial DOA estimates within a time frame based on adaptive clustering, is used to estimate the SS-dominant TF bins for each speaker. The simulation using spherical microphone array shows that our proposed MSEC-MUSIC significantly outperforms the state-of-the-art DPD-MUSIC with less than 6:5° mean estimation error and strong robustness to widely varying source separation for up to 5 sources in the presence of realistic reverberation and sensor noise.

CONFERENCE PAPER

Lightburn L, De Sena E, Moore A, Naylo PA, Brookes Met al., 2017, IMPROVING THE PERCEPTUAL QUALITY OF IDEAL BINARY MASKED SPEECH, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 661-665, ISSN: 1520-6149

CONFERENCE PAPER

Loellmann HW, Moore AH, Naylor PA, Rafaely B, Horaud R, Mazel A, Kellermann Wet al., 2017, MICROPHONE ARRAY SIGNAL PROCESSING FOR ROBOT AUDITION, Conference on Hands-Free Speech Communications and Microphone Arrays (HSCMA), Publisher: IEEE, Pages: 51-55

CONFERENCE PAPER

Moore AH, Brookes M, Naylor PA, 2017, ROBUST SPHERICAL HARMONIC DOMAIN INTERPOLATION OF SPATIALLY SAMPLED ARRAY MANIFOLDS, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 521-525, ISSN: 1520-6149

CONFERENCE PAPER

Moore AH, Evers C, Naylor PA, 2017, Direction of Arrival Estimation in the Spherical Harmonic Domain Using Subspace Pseudointensity Vectors, IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, Vol: 25, Pages: 178-192, ISSN: 2329-9290

JOURNAL ARTICLE

Moore AH, Peso Parada P, Naylor PA, 2017, Speech enhancement for robust automatic speech recognition: Evaluation using a baseline system and instrumental measures, Computer Speech & Language, Vol: 46, Pages: 574-584, ISSN: 0885-2308

JOURNAL ARTICLE

Yiallourides C, Manning-Eid V, Moore AH, Naylor PAet al., 2017, A DYNAMIC PROGRAMMING APPROACH FOR AUTOMATIC STRIDE DETECTION AND SEGMENTATION IN ACOUSTIC EMISSION FROM THE KNEE, IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 401-405, ISSN: 1520-6149

CONFERENCE PAPER

Eaton DJ, Moore AH, Naylor PA, Skoglund Jet al., 2016, Reverberation estimator, US20160118038 A1

Provided are methods and systems for generating Direct-to-Reverberant Ratio (DRR) estimates. The methods and systems use a null-steered beamformer to produce accurate DRR estimates across a variety of room sizes, reverberation times, and source-receiver distances. The DRR estimation algorithm uses spatial selectivity to separate direct and reverberant energy and account for noise separately. The formulation considers the response of the beamformer to reverberant sound and the effect of noise. The DRR estimation algorithm is more robust to background noise than existing approaches, and is applicable where a signal is recorded with two or more microphones, such as with mobile communications devices, laptop computers, and the like.

PATENT

Eaton J, Gaubitch ND, Moore AH, Naylor PAet al., 2016, Estimation of Room Acoustic Parameters: The ACE Challenge, IEEE-ACM TRANSACTIONS ON AUDIO SPEECH AND LANGUAGE PROCESSING, Vol: 24, Pages: 1681-1693, ISSN: 2329-9290

JOURNAL ARTICLE

Evers C, Moore AH, Naylor PA, 2016, ACOUSTIC SIMULTANEOUS LOCALIZATION AND MAPPING (A-SLAM) OF A MOVING MICROPHONE ARRAY AND ITS SURROUNDING SPEAKERS, IEEE International Conference on Acoustics, Speech, and Signal Processing, Publisher: IEEE, Pages: 6-10, ISSN: 1520-6149

CONFERENCE PAPER

Evers C, Moore AH, Naylor PA, 2016, Localization of Moving Microphone Arrays from Moving Sound Sources for Robot Audition, 24th European Signal Processing Conference (EUSIPCO), Publisher: IEEE, Pages: 1008-1012, ISSN: 2076-1465

CONFERENCE PAPER

Hafezi S, Moore AH, Naylor PA, 2016, MULTIPLE SOURCE LOCALIZATION IN THE SPHERICAL HARMONIC DOMAIN USING AUGMENTED INTENSITY VECTORS BASED ON GRID SEARCH, 24th European Signal Processing Conference (EUSIPCO), Publisher: IEEE, Pages: 602-606, ISSN: 2076-1465

CONFERENCE PAPER

Hafezi S, Moore AH, Naylor PA, 2016, 3D ACOUSTIC SOURCE LOCALIZATION IN THE SPHERICAL HARMONIC DOMAIN BASED ON OPTIMIZED GRID SEARCH, IEEE International Conference on Acoustics, Speech, and Signal Processing, Publisher: IEEE, Pages: 415-419, ISSN: 1520-6149

CONFERENCE PAPER

Javed HA, Moore AH, Naylor PA, 2016, SPHERICAL MICROPHONE ARRAY ACOUSTIC RAKE RECEIVERS, IEEE International Conference on Acoustics, Speech, and Signal Processing, Publisher: IEEE, Pages: 111-115, ISSN: 1520-6149

CONFERENCE PAPER

Javed HA, Moore AH, Naylor PA, 2016, SPHERICAL HARMONIC RAKE RECEIVERS FOR DEREVERBERATION, 15th International Workshop on Acoustic Signal Enhancement (IWAENC), Publisher: IEEE

CONFERENCE PAPER

Moore AH, Evers C, Naylor PA, 2016, 2D DIRECTION OF ARRIVAL ESTIMATION OF MULTIPLE MOVING SOURCES USING A SPHERICAL MICROPHONE ARRAY, 24th European Signal Processing Conference (EUSIPCO), Publisher: IEEE, Pages: 1217-1221, ISSN: 2076-1465

CONFERENCE PAPER

Moore AH, Naylor PA, 2016, LINEAR PREDICTION BASED DEREVERBERATION FOR SPHERICAL MICROPHONE ARRAYS, 15th International Workshop on Acoustic Signal Enhancement (IWAENC), Publisher: IEEE

CONFERENCE PAPER

Eaton J, Gaubitch ND, Moore AH, Naylor PAet al., 2015, Proceedings of the ACE Challenge Workshop - a satellite event of IEEE-WASPAA (2015)

Several established parameters and metrics have been used to characterize theacoustics of a room. The most important are the Direct-To-Reverberant Ratio(DRR), the Reverberation Time (T60) and the reflection coefficient. Theacoustic characteristics of a room based on such parameters can be used topredict the quality and intelligibility of speech signals in that room.Recently, several important methods in speech enhancement and speechrecognition have been developed that show an increase in performance comparedto the predecessors but do require knowledge of one or more fundamentalacoustical parameters such as the T60. Traditionally, these parameters havebeen estimated using carefully measured Acoustic Impulse Responses (AIRs).However, in most applications it is not practical or even possible to measurethe acoustic impulse response. Consequently, there is increasing researchactivity in the estimation of such parameters directly from speech and audiosignals. The aim of this challenge was to evaluate state-of-the-art algorithmsfor blind acoustic parameter estimation from speech and to promote the emergingarea of research in this field. Participants evaluated their algorithms for T60and DRR estimation against the 'ground truth' values provided with thedata-sets and presented the results in a paper describing the method used.

OTHER

Eaton J, Gaubitch ND, Moore AH, Naylor PAet al., 2015, THE ACE CHALLENGE - CORPUS DESCRIPTION AND PERFORMANCE EVALUATION, IEEE Workshop on Applications of Signal Processing to Audio and Acoustics (WASPAA), Publisher: IEEE, ISSN: 1931-1168

CONFERENCE PAPER

Eaton J, Moore AH, Naylor PA, Skoglund Jet al., 2015, DIRECT-TO-REVERBERANT RATIO ESTIMATION USING A NULL-STEERED BEAMFORMER, 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 46-50, ISSN: 1520-6149

CONFERENCE PAPER

Eaton J, Moore AH, Naylor PA, Skoglund Jet al., 2015, DIRECT-TO-REVERBERANT RATIO ESTIMATION USING A NULL-STEERED BEAMFORMER, 40th IEEE International Conference on Acoustics, Speech, and Signal Processing (ICASSP), Publisher: IEEE, Pages: 46-50, ISSN: 1520-6149

CONFERENCE PAPER

Evers C, Moore AH, Naylor PA, Sheaffer J, Rafaely Bet al., 2015, Bearing-only Acoustic Tracking of Moving Speakers for Robot Audition, IEEE International Conference on Digital Signal Processing (DSP), Publisher: IEEE, Pages: 1206-1210

CONFERENCE PAPER

Hafezi S, Moore AH, Naylor PA, 2015, MODELING SOURCE DIRECTIVITY IN ROOM IMPULSE RESPONSE SIMULATION FOR SPHERICAL MICROPHONE ARRAYS, 23rd European Signal Processing Conference (EUSIPCO), Publisher: IEEE, Pages: 574-578, ISSN: 2076-1465

CONFERENCE PAPER

Manning V, Yiallourides C, Brevadt M, Moore A, Auvinet E, Naylor P, Cobb Jet al., 2015, Knee Sounds May Predict Osteoarthritis Severity, Symptoms and Function: Pilot Investigation Toward a Novel Dynamic Imaging System, ARTHRITIS & RHEUMATOLOGY, Vol: 67, ISSN: 2326-5191

JOURNAL ARTICLE

Moore AH, Evers C, Naylor PA, 2015, Multichannel Equalisation for High-order Spherical Microphone Arrays using Beamformed Channels, IEEE International Conference on Digital Signal Processing (DSP), Publisher: IEEE, Pages: 1211-1215

CONFERENCE PAPER

Moore AH, Evers C, Naylor PA, Alon DL, Rafaely Bet al., 2015, DIRECTION OF ARRIVAL ESTIMATION USING PSEUDO-INTENSITY VECTORS WITH DIRECT-PATH DOMINANCE TEST, 23rd European Signal Processing Conference (EUSIPCO), Publisher: IEEE, Pages: 2296-2300, ISSN: 2076-1465

CONFERENCE PAPER

Evers C, Moore AH, Naylor PA, 2014, MULTIPLE SOURCE LOCALISATION IN THE SPHERICAL HARMONIC DOMAIN, 14th International Workshop on Acoustic Signal Enhancement (IWAENC), Publisher: IEEE, Pages: 258-262

CONFERENCE PAPER

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