Ask / Submit

An app for detecting ultrasonic beacons?

asked 2017-05-06 14:12:41 +0200

vattuvarg gravatar image

Advertisers are using new tools to map users and ultrasonic beacons seems to be one of them.

Maybe we need a tool to detect that type of material?

edit retag flag offensive close delete



:-? A kind of bats detector? Those wild and not mutated bats?

_ _ _ _ T A _ _ _ _ ( 2017-05-06 14:16:13 +0200 )edit

A possible alternative would be to add a filter that removes ultrasonic content.

vattuvarg ( 2017-05-06 16:04:35 +0200 )edit

Ultrasonic tracking can be used to deanonymize users of Tor.

vattuvarg ( 2017-05-06 17:04:54 +0200 )edit

it is not exactly ultrasonic, at least according to my read. it said between 18 and 18000 hz. that is not ultrasonic. but the pulses might short or whatever that they are not hearable

pawel ( 2017-05-06 18:08:47 +0200 )edit

From the linked pdf document:

Recently, several companies have started to explore new ways to track user habits and activities with ultrasonic beacons. In particular, they embed these beacons in the ultrasonic frequency range between 18 and 20 kHz of audio content and detect them with regular mobile applications using the device’s microphone.

vattuvarg ( 2017-05-06 23:08:10 +0200 )edit

2 Answers

Sort by » oldest newest most voted

answered 2017-05-08 15:07:59 +0200

cemoi71 gravatar image

updated 2017-05-08 15:13:50 +0200

why not an app which is able to close the permissions of the access to the sound interface for each app independently?
I think this theme was already related, no especially for the sound interface, but generally...
I just ask me why, in each dedicated android app option, there is only the option for the permission, to the contacts access. Is a little bit light for me....

edit flag offensive delete publish link more

answered 2017-10-24 20:25:12 +0200

vattuvarg gravatar image

I would like to know if the strange sounds emitted from the Pixel 2 and Pixel 2 XL are the results of malfunctioning hardware.

edit flag offensive delete publish link more
Login/Signup to Answer

Question tools



Asked: 2017-05-06 14:12:41 +0200

Seen: 1,059 times

Last updated: Oct 24 '17