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  "path": "/news/2026-05-3d-speaker-focus-audio-private.html",
  "publishedAt": "2026-05-21T13:20:07.000Z",
  "site": "https://techxplore.com",
  "tags": [
    "Consumer & Gadgets"
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  "textContent": "Music lovers may one day be able to blast their favorite artists, headphone-free, without angering the neighborhood or colleagues, thanks to researchers at Penn State. The team designed a system that can manipulate sound waves so that they are only audible at a precise spot slightly wider than an inch. Despite this tiny focal point, their system can produce high-quality audio, potentially offering listeners a crisp, yet private, sound experience. The team detailed their work in a paper recently published in IEEE Transactions on Ultrasonics.",
  "title": "3D-printed speaker cover can focus audio into a private 'sound spot'"
}