NDLI: Stereo to the "Real Surround Sound" conversion algorithm

Content Provider	IEEE Xplore Digital Library
Author	Komatowski, E.
Copyright Year	2011
Description	Author affiliation: West Pomeranian University of Technology, Szczecin, Poland (Komatowski, E.)
Abstract	The method of the extraction of spatial information from 2-channel audio signal is presented in the paper. The proposed algorithm will be used to recover true spatial acoustical field for 5.0 surround system from archival 2-channel stereo recordings. There is a lot of such recordings (digital as well) which can be more attractive, when post processed to 5.0-channel standard and reproduced in home theater systems. The idea of the proposed approach is based on special utilization of amplitude-phase dependencies in input audio signal. The author have created a nonlinear algorithm of spatial information which intelligently splits 2-channel sound to 5 output channels in DTS (or Dolby Digital) 5.0 format. The proposed algorithm is also compatible with analog Dolby Surround coding. The efficiency of the method is proven objectively and subjectively. Author has also presented simple method of graphic presentation of received results. Thanks to combination of diagrams it is possible to estimate fast a quality of spatial effect. Effectively of presented sound spatialization method has been compared to known matrix Dolby Surround system and recordings made in multi-channel Dolby Digital 5.0 system.
Starting Page	339
Ending Page	342
File Size	846887
Page Count	4
File Format	PDF
ISBN	9781457714108
e-ISBN	9781457714115
DOI	10.1109/TSP.2011.6043713
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-08-18
Publisher Place	Hungary
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Algorithm design and analysis Sound engineering Correlation Signal processing algorithms Channel estimation Digital signal processing Spatial sound Acoustics Virtual sound source Surround sound Microphones
Content Type	Text
Resource Type	Article

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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