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Intersecting Ultrasound BeamsIEEE Spectrum
•Technology
Technology
81% Informative
Ultrasound beams fired through a 3D-printed metasurface can create localized pockets of sound that are inaudible to passers-by.
Technique could be used to create private speech zones for secure communications or enable personalized audio spaces in public spaces and vehicles.
He's on Twitter at @EddytheGent and email at edd dot gent at outlook dot com. His PGP fingerprint is ABB8 6BB3 3E69 C4A7 EC91 611B 5C12 193D 5DFC C01B. His public key is here. DM for Signal info..
VR Score
76
Informative language
72
Neutral language
65
Article tone
semi-formal
Language
English
Language complexity
57
Offensive language
not offensive
Hate speech
not hateful
Attention-grabbing headline
not detected
Known propaganda techniques
not detected
Time-value
long-living
External references
5
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