Details of Grant 

EPSRC Reference:	GR/M90146/01
Title:	NETWORK: PROCESSING AND REPRESENTATION OF SPEECH AND COMPLEX SOUNDS
Principal Investigator:	Darwin, Professor CJ
Other Investigators:
Researcher Co-Investigators:
Project Partners:
Department:	Sch of Psychology
Organisation:	University of Sussex
Scheme:	Standard Research (Pre-FEC)
Starts:	25 October 1999	Ends:	24 April 2003	Value (£):	52,315
EPSRC Research Topic Classifications:	Vision & Senses - ICT appl.
EPSRC Industrial Sector Classifications:	No relevance to Underpinning Sectors
Related Grants:
Panel History:
Summary on Grant Application Form
This Network proposal aims to facilitate productive interactions between three groups of research workers, namely those involved in speech recognition, auditory perception and auditory physiology. Speech recognition, through commercially viable for speech produced under known, controlled circumstances, lacks robustness when additional sounds are present or when recording conditions change. This lack or robustness is mirrored in our lack of knowledge about how biological auditory systems solve two central problems in hearing: how to separate independent sound sources (the cocktail-party problem), and how to deconvolve the contribution of different transfer functions (eg a close versus a distant talker in a reverberant room). Novel signal processing approaches to these problems (eg Independent Components Analysis) could provide new insight for he biological investigation of how brains represent and process complex sounds. Conversely, results of psychological and neurophysiological investigations could inform engineering implementations. In addition, similar statistical methods are being brought to bear on the way that the auditory cortex represents complex sounds, an area of research which presently lags significantly behind similar work in vision. Insight into the types of representation used by the auditory cortex may also provide novel approaches to automatic recognition.
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Organisation Website:	http://www.sussex.ac.uk