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Multi-objective optimization for generation of personal sound zone.

Jiazheng Cheng¹, Hao Gao¹, Keyu Pan¹

¹Key Laboratory of Modern Acoustics, Institute of Acoustics, Nanjing University, Nanjing 210093, China.

The Journal of the Acoustical Society of America

|February 2, 2023

Summary

This summary is machine-generated.

Personal Sound Zone (PSZ) systems enable individualized audio experiences. This study introduces two multi-objective optimization methods to balance acoustic contrast, signal distortion, and array effort for improved PSZ performance.

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Area of Science:

Acoustics
Signal Processing
Audio Engineering

Background:

Personal Sound Zone (PSZ) systems aim to deliver individualized audio experiences.
Key performance metrics include acoustic contrast, signal distortion, and array effort.
Simultaneous optimization of these metrics is challenging, necessitating trade-offs in system design.

Purpose of the Study:

To propose two generalized multi-objective optimization methods for Personal Sound Zone systems.
To address the inherent trade-offs between acoustic contrast, signal distortion, and array effort.
To analyze the optimality and interrelationships of the proposed methods.

Main Methods:

Development of two novel generalized methods based on multi-objective optimization.
Conducting optimality analysis for the proposed methods.
Investigating the relationship between the two proposed optimization approaches.

Main Results:

The proposed methods effectively handle trade-offs between key PSZ performance metrics.
Optimality analysis confirms the theoretical underpinnings of the methods.
Numerical simulations demonstrate the efficacy and flexibility of the developed approaches.

Conclusions:

The presented multi-objective optimization methods offer a flexible framework for designing Personal Sound Zone systems.
These methods provide a systematic way to navigate the trade-offs between acoustic contrast, signal distortion, and array effort.
The findings validate the practical applicability of the proposed techniques in PSZ system development.