Research Interests Audio signal processing, localization of audio
signals, sensor networks, real-time signal processing, wireless
communications, compressed sensing, speech recognition, speaker
identification, embedded programming. Previous Positions 20072009 Marie Curie Fellow at FORTH-ICS, Heraklion, Greece 20032007 Senior DSP Engineer at Industrial
Research Limited, Wellington, New Zealand 20002002 DSP Engineer at 4RF
Communications, Wellington, New Zealand Recent Publications (all peer-reviewed) 2013 M. Puigt, E. Vincent, Y. Deville, A.
Griffin, and A. Mouchtaris, Effects
of audio coding on ICA performance: an experimental study, in Proc. of the 11th IEEE International
Workshop on Electronics, Control, Measurement, Signals and their application
to Mechatronics (ECMSM 2013), Toulouse, France, 2426 June 2013 A. Alexandridis, A. Griffin, and A.
Mouchtaris, Directional coding of audio using a circular microphone array, in Proc. of the 2013 IEEE International Conference on Acoustics, Speech,
and Signal Processing (ICASSP 2013), Vancouver, Canada, 2631 May 2013 A. Alexandridis, A. Griffin, and A.
Mouchtaris Capturing
and Reproducing Spatial Audio based on a Circular Microphone Array, Journal of Electrical and Computer
Engineering, vol. 2013, Article ID 718574, 16 pages, 2013.
doi:10.1155/2013/718574. 2012 A.
Griffin, D. Pavlidi, M. Puigt, and A. Mouchtaris, Real-time multiple speaker DOA estimation in a circular microphone
array based on matching pursuit, in Proc. of the 20th European Signal
Processing Conference (EUSIPCO 2012), Bucharest, Romania, 2731 August
2012. M. Puigt, A. Griffin, and A.
Mouchtaris, Nonlinear blind mixture identification using
local source sparsity and functional data clustering, in Proc.
of the 7th IEEE Sensor Array and Multichannel Signal Processing (SAM 2012),
Hoboken, NJ, USA, 1720 June 2012 D. Pavlidi, A. Griffin, M. Puigt, and
A. Mouchtaris, Source counting in real-time sound source
localization using a circular microphone array, in Proc.
of the 7th IEEE Sensor Array and Multichannel Signal Processing (SAM 2012),
Hoboken, NJ, USA, 1720 June 2012. D. Pavlidi, M. Puigt, A. Griffin, and A.
Mouchtaris, Real-time multiple sound source localization using a circular
microphone array based on single-source confidence measures, in Proc.
of the 2012 IEEE International Conference on Acoustics, Speech, and Signal
Processing (ICASSP 2012), Kyoto, Japan, 2530 March
2012. 2011 M. Puigt, A. Griffin,
and A. Mouchtaris, Post-nonlinear speech mixture identification using single-source
temporal zones & curve clustering, in Proc.
19th European Signal Processing Conference (EUSIPCO 2011), Barcelona,
Spain, 29 August 2 September 2011. A. Griffin, T. Hirvonen, C. Tzagkarakis, A. Mouchtaris, and P.
Tsakalides, "Single-channel and Multi-channel Sinusoidal Audio Coding Using
Compressed Sensing," IEEE Transactions on Audio, Speech and Language
Processing, vol.
19, no. 5, pp. 13821395, July 2011. T.
Agrawal, V. Lakkundi, A. Griffin,
and P. Tsakalides, "Compressed Sensing for OFDM
UWB Systems," in Proc. IEEE Radio and Wireless Symposium (RWS '11), Phoenix,
AZ, 1620 January 2011. 2010 A. Griffin, E. Karamichali,
and A. Mouchtaris, "Speaker Identification using Sparsely Excited Speech Signals and
Compressed Sensing," in Proc. 18th European Signal Processing Conference (EUSIPCO '10),
Aalborg, Denmark, 2327 August 2010. A. Griffin, T. Hirvonen, A. Mouchtaris, and P. Tsakalides, "Multichannel Audio Coding Using Sinusoidal Modelling and
Compressed Sensing," in Proc. 18th European Signal Processing
Conference (EUSIPCO '10), Aalborg, Denmark, 2327 August 2010. 2009 A. Griffin, T. Hirvonen, A. Mouchtaris, and P. Tsakalides, "Encoding
the Sinusoidal Model of an Audio Signal using Compressed Sensing," in Proc. 2009 IEEE
International Conference on Multimedia & Expo (ICME '09), Cancun,
Mexico, 28 June 3 July 2009. A. Griffin, C. Tzagkarakis, T. Hirvonen, A. Mouchtaris, and P.
Tsakalides, "Exploiting the Sparsity of
the Sinusoidal Model Using Compressed Sensing for Audio Coding," in Proc. 2009 Workshop on
Signal Processing with Adaptive Sparse Structured Representations (SPARS
'09), Saint-Malo, France, 69 April 2009. 2008 A. Griffin and P. Tsakalides, "Compressed Sensing of Audio Signals Using Multiple
Sensors," in Proc. 16th European Signal Processing Conference (EUSIPCO '08), Lausanne,
Switzerland, 2529 August 2008. A. Griffin and P. Tsakalides, "Compressed
Sensing of Audio Signals in a Wireless Sensor Network," in Proc. 5th European Workshop
on Wireless Sensor Networks (EWSN '08), Bologna, Italy, 30 January
1 February 2008. |
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