Document Detail


Blind source separation and directional audio synthesis for binaural auralization of multiple sound sources using microphone array recordings.
MedLine Citation:
PMID:  18529636     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Microphone array signal processing techniques are extensively used for sound source localisation, acoustical characterisation and sound source separation, which are related to audio analysis. However, the use of microphone arrays for auralisation, which is generally related to synthesis, has been limited so far. This paper proposes a method for binaural auralisation of multiple sound sources based on blind source separation (BSS) and binaural audio synthesis. A BSS algorithm is introduced that exploits the intensity vector directions in order to generate directional signals. The directional signals are then used in the synthesis of binaural recordings using head related transfer functions. The synthesised recordings subsume the indirect information about the auditory environment conveying the source positions and the acoustics similar to dummy head recordings. Test recordings were made with a compact microphone array and a dummy head in different indoor environments. Subjective listening tests were performed to compare the synthesized recordings with the actual ones for their performance in providing presence, spaciousness and envelopment.
Authors:
Banu Gunel; Huseyin Hacihabiboglu; Ahmet Kondoz
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  The Journal of the Acoustical Society of America     Volume:  123     ISSN:  1520-8524     ISO Abbreviation:  J. Acoust. Soc. Am.     Publication Date:  2008 May 
Date Detail:
Created Date:  2008-06-05     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7503051     Medline TA:  J Acoust Soc Am     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3079     Citation Subset:  IM    
Affiliation:
I-Lab Multimedia and DSP Research Group, Centre for Communication Systems Research, University of Surrey, GU2 7XH Guildford, UK, B.Gunel@surrey.ac.uk.
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