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Convention Paper

On the Influence of Headphone Quality in the Spatial Immersion Produced by Binaural Recordings

Authors: Gutierrez-Parera, Pablo; Lopez, Jose J.; Aguilera, Emanuel

AES Convention 138 · Paper 9222 · May 2015

Abstract

The binaural recordings obtained using an acoustic manikin produce a realistic sound immersion played through high quality headphones. However, most people commonly use headphones of inferior quality as the ones provided with smartphones or music players. Factors such as frequency response, distortion, and the disparity between the left-right transducers could be some of the degrading factors. This work lays the foundation for a strategy for studying what are the factors that affect the end result and what level do. A first experiment focuses on the analysis of how the disparity in levels between the two transducers affects the final result. A second test studies the influence of the frequency response. A third test analyzes the effects of distortion using a Volterra kernels scheme for the simulation of the distortion using convolutions. The results of this work reveal how disparity between both transducers can affect the perception of direction. In the case of frequency response the results are more difficult to quantify and further work will be necessary. Finally the study reveals that the distortion produced by the range of headphones tested does not affect to the perception of binaural sound.

Details

Published in
AES Convention 138
AES Convention
138
Paper number
9222
Publication date
May 6, 2015
Session subject
Spatial Audio
Affiliation
Universidad Politecnica de Valencia, Valencia, Spain (See document for exact affiliation information.)
Type
Convention Paper