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How is javascript playing ultrasound not seen as an attack on the user? In what world is that ever a sane thing to do?
by adekok 10y ago
How is javascript playing ultrasound not seen as an attack on the user?
In what world is that ever a sane thing to do?
- manarth 10y agoI can think of plausible use-cases: e.g. wireless data communication with devices that aren't networked. I've got scuba-diving computers that need special cables to sync with my PC: if they could sync with nothing more than a webpage and speakers, that would be pretty neat.
- PeterisP 10y agoFrom a technical standpoint there's no difference from javascript playing sound that the user wants and a "malicious" sound. Ultrasound only differs from "audible" sound in our ears, from the browser perspective both are just bits sent to your audio DAC.