A system uses AM-modulated ultrasound from off-the-shelf speakers and earphone DSP demodulation to deliver multi-channel, location-specific audio with preserved spatial cues, though no experimental validation is provided.
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UltrasonicSpheres: Localized, Multi-Channel Sound Spheres Using Off-the-Shelf Speakers and Earables
A system uses AM-modulated ultrasound from off-the-shelf speakers and earphone DSP demodulation to deliver multi-channel, location-specific audio with preserved spatial cues, though no experimental validation is provided.