[tor-talk] Audio fingerprinting

[mrnobody at mail-on.us]

http://techcrunch.com/2016/05/19/audio-fingerprinting-being-used-to-track-web-users-study-finds/

A wide-scale study of online trackers carried out by researchers at
Princeton University has identified a new technique being used to try to
strip web users of their privacy, as well as quantifying the ongoing
usage of some better-known tracking techniques.

The new technique unearthed by the study is based on fingerprinting a
machine’s audio stack via the AudioContext API. So it’s not collecting
sound played or recorded on a machine but rather harvesting the audio
signature of the individual machine and using that as an identifier to
track a web user.

I understand that these methods are not possible without javascript, are
they?
The example provided in the webpage:
https://audiofingerprint.openwpm.com/
uses fingerprintjs2 library.

Any thoughts?
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