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A 3D Ambisonic Based Binaural Sound Reproduction System

Markus Noisternig, Alois Sontacchi, Thomas Musil, Robert Höldrich

Open publisher page 78 citations

Abstract

A computationally efficient 3D real time rendering engine for binaural sound reproduction via headphones is presented. Binaural sound reproduction requires to filter the virtual sound source signals with head related transfer functions (HRTFs). To improve humans localization capabilities head tracking as well as room simulation have to be incorporated. This yields the problem of high-quality, time-varying interpolation between different HRTFs. To overcome this problem a virtual ambisonic approach is used that results in a bank of time-invariant HRTF filter.

About this research paper

What this paper is about

A computationally efficient 3D real time rendering engine for binaural sound reproduction via headphones is presented. Binaural sound reproduction requires to filter the virtual sound source signals with head related transfer functions (HRTFs). To improve humans localization capabilities head tracking as well as room simulation have to be incorporated. This yields the problem of high-quality, time-varying interpolation between different HRTFs. To overcome this problem a virtual ambisonic approach is used that results in a bank of time-invariant HRTF filter.

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OpenAlex reports 78 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Method / approach

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Available abstract

A computationally efficient 3D real time rendering engine for binaural sound reproduction via headphones is presented. Binaural sound reproduction requires to filter the virtual sound source signals with head related transfer functions (HRTFs). To improve humans localization capabilities head tracking as well as room simulation have to be incorporated. This yields the problem of high-quality, time-varying interpolation between different HRTFs. To overcome this problem a virtual ambisonic approach is used that results in a bank of time-invariant HRTF filter.

Key concepts: Binaural recording, Ambisonics, Headphones, Head-related transfer function, Computer science, Rendering (computer graphics), Transfer function, Sound localization

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