DIGITAL IMAGE GENERATION METHOD THROUGH 3D SPATIAL DISTRIBUTION OF SOUND QUALITY OBJECTIVE PARAMETERS

摘要

A digital image generation method through 3D spatial distribution of sound quality objective parameters is performed by the following steps: Step 1. recording holograpahic acoustic pressure data on a hologrpahic measurement surface by using a microphone array; Step 2. reconstructing acoustic quantities in a 3D acoustic field; Step 3. calculating the distribution of a sound quality objective parameter (such as loudness, acuteness, and roughness) at each point in the 3D space according to acoustic quantity information inside the 3D space obtained in Step 2 and based on an acoustic pressure-sound quality objective parameter mapping model, and giving the distribution in the form of a 3D digital image, thereby implementing 3D spatial visualization of sound quality objective parameters.