"The thesis is divided into two main sections. First half describes the implementation of different adaptive beamforming techniques. Adaptive beamforming techniques are widely used in many real world applications like teleconferencing, speech recognition, devices for the hearing impaired, radar, sonar, etc. The beamformer is an array of sensors which can be electronically steered to any particular direction to enhance the signal in the direction of interest while at the same time suppressing interference or jammers coming from other directions.
In our experiment, we implement both the regularized minimum variance distortionless receiver (MVDR) and the generalized sidelobe canceller (GSC). The beamforming is performed on the input data which are simulated for both reverberant and non-reverberant environments and also on real data collected using a linear microphone array. The results show a significant improvement in the output SNR for the beamformers compared to that of a single microphone.
We present the Immersive Audio Environment (IAE), an easily constructible and portable structure which is capable of 3-D sound auralization with very high spatial resolution. A novel method for acoustically positioning loudspeakers in space, which is required by the IAE for simulation of sound sources, is presented. Our contribution is the creation of a system that uses existing and modifications of existing techniques; Vector Based Amplitude Panning (VBAP), in order to recreate an audio battle environment"--Abstract, page iii.
Grant, Steven L.
Kosbar, Kurt Louis
Moss, Randy Hays, 1953-
Electrical and Computer Engineering
M.S. in Electrical Engineering
Missouri University of Science and Technology
ix, 51 pages
© 2012 Jayasecha Raghavendra Nimmala, All rights reserved.
Thesis - Restricted Access
Library of Congress Subject Headings
Adaptive signal processing
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Electronic access to the full-text of this document is restricted to Missouri S&T users. Otherwise, request this publication directly from Missouri S&T Library or contact your local library.http://laurel.lso.missouri.edu:80/record=b9552602~S5
Nimmala, Jayasecha Raghavendra, "Implementation and evaluation of spatial audio recording and rendering techniques" (2012). Masters Theses. 4526.
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