Methods for determining head-related transfer functions

CN119174195BActive Publication Date: 2026-05-26MERCEDES BENZ GRP
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Patent Information

Application Number
CN202380039034.9
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Priority Date
2022-06-15
Filing Date
2023-05-22
Publication Date
2026-05-26
Estimated Expiration
2043-05-22

AI Technical Summary

Technical Problem

In existing technologies, it is difficult and not accurate enough to use cameras to collect individual head anatomy to determine the head-related transfer function (HRTF) inside a vehicle, resulting in a decrease in the comfort of the 3D sound experience.

Method used

Multiple cameras are used to collect anatomical features of an individual's head and ears in the external and internal areas of the vehicle. An HRTF model is constructed through image analysis and mathematical calculations. Near-infrared light is used to collect data under different angles and lighting conditions. Personalized sound effects are achieved by combining the in-vehicle audio processor and speakers.

Benefits of technology

It enables efficient and accurate acquisition of HRTF in the external area of ​​the vehicle, simplifies the implementation process of 3D sound effects, improves the comfort of the sound experience and the reliability of personalized sound effects, and reduces hardware costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a method for determining the head-related transfer function (HRTF) of at least one person (2) using a vehicle (1), wherein the head-related transfer function (HRTF) is calculated based on features of the person (2) acquired by cameras (4, 6, 7). The invention is characterized in that the features are acquired at least partially sequentially in time by a plurality of cameras (4, 6, 7), wherein at least one of the cameras (4) is arranged to acquire the person (2) in a region outside the vehicle (1) as the person (2) approaches and opens the vehicle (1).
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Citation Information

Patent Citations

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    US20130194107A1

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    DE102020108449A1

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    DE102020132427A1

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    JP2020170938A