A Low-Complexity Down-Mixing Structure on Quadraphonic Headsets for Surround Audio

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概要

• 論文の詳細を見る

• This work presents a four-channel headset achieving a 5.1-channel-like hearing experience using a low-complexity head-related transfer function (HRTF) model and a simplified reverberator. The proposed down-mixing architecture enhances the sound localization capability of a headset using the HRTF and by simulating multiple sound reflections in a room using Moorer's reverberator. Since the HRTF has large memory and computation requirements, the common-acoustical-pole and zero (CAPZ) model can be used to reshape the lower-order HRTF model. From a power consumption viewpoint, the CAPZ model reduces computation complexity by approximately 40%. The subjective listening tests in this study shows that the proposed four-channel headset performs much better than stereo headphones. On the other hand, the four-channel headset that can be implemented by off-the-shelf components preserves the privacy with low cost.

著者

• Chang Pao-chi

  Department Of Communication Engineering National Central University

• CHANG Pao-Chi

  Department of Communication Engineering, National Central University

• SHIU Yi-Ming

  Department of Communication Engineering, National Central University

• CHANG Tai-Ming

  Department of Communication Engineering, National Central University

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• A Low-Complexity Down-Mixing Structure on Quadraphonic Headsets for Surround Audio

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