THE CAMBRIDGE STATISTICS DISCUSSION GROUP
Wednesday 24th November 2004 7:15 for 7:45
Department of Applied Mathematics and Theoretical Physics,
Centre for Mathematical Sciences,
Wilberforce Road,
Cambridge
Digital Audio Restoration, or how to remaster old sound
recordings using Bayesian statistics
Simon Godsill,
Department of Engineering
University of Cambridge
Abstract:
I will describe the work of over a decade in the Cambridge Signal Processing
Group on digital restoration methods for old sound recordings. Problems such
as cracked or broken records, uneven recording speeds, clipping, clicks, hiss
and distortion can all be corrected using statistical methods,and we have
mostly adopted a Bayesian time series approach to the problems. The methods
have a serious mathematical heart, and results will be demonstrated for real
sound recordings obtained from sound archives and record collections.
Speaker:
Simon Godsill is Reader in Statistical Signal Processing at the University of
Cambridge. He has research interests in audio and music processing, tracking,
genomics and computational statistical methods. He is a director of the sound
processing company CEDAR audio Ltd. and has published a book and many papers
on the topic of sound processing and Bayesian methods in signal processing.
For more information see http://www-sigproc.eng.cam.ac.uk/~sjg/
Annual General Meeting: Simon's talk will be preceded by a brief
Annual General Meeting.
Directions:
The main entrance is reached from Clarkson Road by going along the
footpath to the right of the Newton Institute, and turning left through the
gatehouse towards the main building (Pavilion A), which has a glass front and
a curved grassed roof. The main entrance is in the middle of the glass
front. Free Parking is available after 5pm on Clarkson and Wilberforce Roads
and by entering the site off Wilberforce Road. Admittance may be difficult
after 7:45pm.
Next Meetings:
2nd February - Lara Jamieson (Plant Sciences) on 'A Bayesian analysis of the
citrus canker epidemic in urban Miami'.
2nd March - Mary Garratt on 'Dead Dutch Cats'.
Supper: Some members eat regularly in the University Centre before
each talk meeting in the downstairs bar at 6pm. Feel free to join them.
Secretary: Peter Watson, MRC Cognition and Brain Sciences Unit,
15 Chaucer Road, Cambridge CB2 2EF;telephone 01223 355294 Extension 801;
E-mail [log in to unmask]
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