Computer-implemented method for generating a head-related transfer function
The method simulates sound beam behavior using geometrical acoustics and raytracing to generate HRTFs, addressing resource and cost issues in existing techniques, achieving a realistic and efficient 3D audio experience.
WO2026082740A1 Publication Date: 2026-04-23HOGESCHOOL PXL
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Patent Information
- Application Number
- PCT/EP2025/079642
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-10-14
- Filing Date
- 2025-10-14
- Publication Date
- 2026-04-23
AI Technical Summary
Technical Problem
Existing HRTF techniques are resource-intensive, impractical, expensive, and introduce undesirable sound coloration, requiring uncomfortable measurements and are not adjustable.
Method used
A computer-implemented method simulating sound beam behavior using geometrical acoustics and raytracing to generate HRTFs, which includes simulating sound reflections and parameters like time difference, attenuation, and delay, without expensive measurements, using virtual microphones and ellipsoidal head models.
Benefits of technology
The method provides a cost-effective and efficient generation of HRTFs, resulting in a realistic and accurate 3D audio experience with improved sound reproduction, reducing computational intensity and avoiding sound coloration.
✦ Generated by Eureka AI based on patent content.
Abstract
A computer-implemented method for generating a head-related transfer function, HRTF, for bringing about a three-dimensional, 3D, sound experience, the method comprising the following steps of: − simulating in a first simulation step a beam behaviour of one or more sound beams coming from one or more virtual loudspeaker sources depending on a head of a listener in a space; − calculating on the basis of the first simulation step one or more reflections of the one or more sound beams; − emulating in an emulation step one or more sound parameters representative of at least one of a time difference, an attenuation of the one or more sound beams, a delay of the one or more sound beams, a diffraction of the one or more sound beams and spectral information of the one or more sound beams on the basis of the calculated one or more reflections; and generating the HRTF on the basis of the one or more sound parameters emulated in the emulation step.
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