Acoustic signal control method, parameter determination method, acoustic signal control device, parameter determination device, and program
JP2026096300APending Publication Date: 2026-06-15NIPPON TELEGRAPH & TELEPHONE CORP +1
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- NIPPON TELEGRAPH & TELEPHONE CORP
- Filing Date
- 2024-12-03
- Publication Date
- 2026-06-15
AI Technical Summary
Technical Problem
Existing methods for generating personalized Head-Related Transfer Functions (HRTFs) are burdensome for users, requiring lengthy measurements or significant computational efforts, and do not effectively integrate ambient sounds with virtual sounds in open-ear earphones.
Method used
An acoustic signal control device that determines pHRTF parameters based on user input, physical characteristics, or sensor information, allowing for simplified and personalized HRTF generation without extensive user interaction or computation.
Benefits of technology
Enables efficient and personalized HRTF generation for open-ear earphones, enhancing the integration of ambient and virtual sounds without the need for lengthy measurements or complex calculations.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure 2026096300000001_ABST
Abstract
This invention provides an acoustic signal control method that enables the use of an HRTF tailored to the individual by easily determining parametric head-related transfer function (pHRTF) parameters without burdening the user with actual measurements or requiring extensive calculations. [Solution] In the added sound distribution system 20, the added sound playback device that controls the added sound in an environment where the direct sound and the sound processed with the added sound can be heard simultaneously comprises a parameter selection unit 207 and an added sound processing unit 209. The parameter selection unit 207 determines the parameters for generating the HRTF for each user listening to the added sound based on information obtained from the user. The added sound processing unit 209 generates the processed added sound based on the sound image position information and parameters and outputs it to the open-ear acoustic device 102. The information obtained from the user is one of the following: a sound image localization sample selected by the user, the user's physical characteristics as answered by the user, or sensor information obtained from the user.
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