In-cabin acoustic analysis method
The vehicle interior acoustic analysis method separates sound into early and delayed waves to identify and address problematic components, enhancing acoustic quality in vehicle cabins.
JP2025181030APending Publication Date: 2025-12-11MAZDA MOTOR CORP
Patent Information
- Application Number
- JP2024088768
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-12-11
Smart Images
Figure 2025181030000001_ABST
Abstract
To provide an in-cabin acoustic analysis method capable of accurately analyzing and efficiently improving in-cabin sound of a vehicle.SOLUTION: An in-cabin acoustic analysis method for analyzing sound in a cabin of a vehicle includes: an input step of inputting a sound generation cause to the vehicle; a measurement step of measuring vibration generated in components constituting the vehicle due to the input of the sound generation cause, so as to acquire vibration data; a separated wave calculation step of separating the vibration data acquired in the measurement step by a mode method, so as to calculate an initial arrival wave and a delayed wave; and a transfer characteristics calculation step of calculating at least one of modulated wave transfer characteristics for each frequency of sound generated at a predetermined position in the cabin of the vehicle only by the initial arrival wave and modulated wave transfer characteristics for each frequency of sound generated at the predetermined position in the cabin of the vehicle only by the delayed wave.SELECTED DRAWING: Figure 10
Need to check novelty before this filing date? Find Prior Art
Citation Information
Patent Citations
Sound field analyzing device
JP1995334177A
Sound source distribution data interpolation method, sound source distribution data interpolation device, musical sound signal processing device, program and recording medium
JP3969133B2