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Wideband sound reproduction using a massive multi-channel focusing parametric array loudspeaker system

Tao Zhuang1,2, Mengtong Li1,2, Shaozhe Li1,2

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

The Journal of the Acoustical Society of America
|October 22, 2025
PubMed
Summary

This study introduces a compact 576-channel focusing parametric array loudspeaker (PAL) for high-contrast, wideband audio control. The novel approach uses ultrasonic modulation for focused sound, offering a smaller alternative to traditional loudspeaker arrays.

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