Saturday, November 12, 2016

Sonic Barcode

A more recent update.  May 2018:
https://www.nytimes.com/2018/05/10/technology/alexa-siri-hidden-command-audio-attacks.html

Such a simple idea:  Sound a machine can hear but humans cannot.

Update info 10 Jan 2018: https://www.wired.com/story/when-wifi-wont-work-let-sound-carry-your-data/

https://www.chirp.io/#what-is-chirp

Fascinating technology.  Audio frequency rather than radio frequency transmission.  It can be an audio frequency beyond the range of human hearing.  In a recent blog entry I looked into this.

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