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Linear estimation based primary-ambient extraction for stereo audio signals

Linear estimation based primary-ambient extraction for stereo audio signals
Abstract: 

Audio signals for moving pictures and video games are often linear combinations of primary and ambient components. In spatial audio analysis-synthesis, these mixed signals are usually decomposed into primary and ambient components to facilitate flexible spatial rendering and enhancement. Existing approaches such as principal component analysis (PCA) and least squares (LS) are widely used to perform this decomposition from stereo signals. However, the performance of these approaches in primary-ambient extraction (PAE) has not been well studied and no comparative analysis among the existing approaches has been carried out so far. In this paper, we generalize the existing approaches into a linear estimation framework. Under this framework, we propose a series of performance measures to identify the components that contribute to the extraction error. Based on the generalized linear estimation framework and our proposed performance measures, a comparative study and experimental testing of the linear estimation based PAE approaches including existing PCA, LS, and three proposed variant LS approaches are presented.

This paper has been published in IEEE/ACM Trans. Audio, Speech, Lang. Processing, vol. 22. no. 2, pp. 505-517, Feb. 2014.
For published version of the paper, please visit: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6698287

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Paper Details

Authors:
Ee Leng Tan
Submitted On:
23 February 2016 - 1:43pm
Short Link:
Type:
Research Manuscript

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ASLP14manuscript_Linear estimation based primary-ambient extraction for stereo audio signals.pdf

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[1] Ee Leng Tan, "Linear estimation based primary-ambient extraction for stereo audio signals", IEEE SigPort, 2015. [Online]. Available: http://sigport.org/158. Accessed: Apr. 26, 2018.
@article{158-15,
url = {http://sigport.org/158},
author = {Ee Leng Tan },
publisher = {IEEE SigPort},
title = {Linear estimation based primary-ambient extraction for stereo audio signals},
year = {2015} }
TY - EJOUR
T1 - Linear estimation based primary-ambient extraction for stereo audio signals
AU - Ee Leng Tan
PY - 2015
PB - IEEE SigPort
UR - http://sigport.org/158
ER -
Ee Leng Tan. (2015). Linear estimation based primary-ambient extraction for stereo audio signals. IEEE SigPort. http://sigport.org/158
Ee Leng Tan, 2015. Linear estimation based primary-ambient extraction for stereo audio signals. Available at: http://sigport.org/158.
Ee Leng Tan. (2015). "Linear estimation based primary-ambient extraction for stereo audio signals." Web.
1. Ee Leng Tan. Linear estimation based primary-ambient extraction for stereo audio signals [Internet]. IEEE SigPort; 2015. Available from : http://sigport.org/158