Sound Field Parameter Combination for Intermediate Acoustic Reproduction
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Solution Overview
Problem
Current sound field control technologies are limited in reproducing various sound fields with distinct acoustic characteristics, particularly in generating sound fields with characteristics intermediate between different acoustic spaces.
Innovation Solution
An information processing method and system that acquire sound field parameters from different acoustic spaces and generate a third sound field parameter by combining the first and second sound field parameters, allowing for the reproduction of sound fields with acoustic characteristics intermediate between the original sound fields.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If sound field parameters from different acoustic spaces are combined to generate intermediate sound fields, then the versatility of sound field reproduction is improved, but the computational complexity increases
Solution Approach 1:
The sound field parameter combination process is segmented into distinct operational phases: acquiring first sound field parameters, acquiring second sound field parameters, and combining them through weighted summation. This segmentation allows the complex task of intermediate sound field generation to be broken down into manageable, computationally efficient steps that can be processed sequentially.
Solution Approach 2:
The patent applies parameter changes by modifying the weighting coefficients (first weighting coefficient and second weighting coefficient) to control the contribution of each sound field parameter set. By adjusting these parameters, the system can dynamically generate different intermediate sound fields with varying acoustic characteristics, enabling versatile sound field reproduction without requiring complex structural changes.
2Adaptability or versatility
If multiple sound field parameters are processed and combined, then the variety of reproducible sound fields increases, but the processing time increases
Solution Approach 1:
The system performs preliminary action by pre-acquiring and storing sound field parameters from different acoustic spaces before they are needed for intermediate sound field generation. The first sound field parameters and second sound field parameters are obtained in advance, allowing the combination process to proceed efficiently without time-consuming measurements or calculations during actual reproduction.
Solution Approach 2:
The patent uses copying by representing complex acoustic environments through simplified sound field parameters that capture the essential acoustic characteristics. Instead of processing complete acoustic field data, the system works with parameter sets that can be stored, transmitted, and combined efficiently, significantly reducing processing time while maintaining sound field reproduction quality.
Data Source
AI summary
An information processing method realized by a computer system includes acquiring a first sound field parameter representing a feature of a first sound field and a second sound field parameter representing a feature of a second sound field, and generating a third sound field parameter representing a feature of a third sound field by using the first sound field parameter and the second sound field parameter. The first sound field has first acoustic characteristics different from second acoustic characteristics of the second sound field. The third sound field has third acoustic characteristics different from the first acoustic characteristics and the second acoustic characteristics.