The Gyroscopes in Your Phone Could Let Apps Eavesdrop on Conversations

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by digitalcreate on Thursday August 14, 2014 @02:23PM (#8178934)

Reminds me of the recent Visual Microphone algorithm that researchers found, which recreates sound by looking at micro-vibrations of objects (ex. potato chip bags and house plants).

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by mturmon on Thursday August 14, 2014 @09:31PM (#8180652)

Here, in case people are interested:

http://people.csail.mit.edu/mrub/VisualMic/

I saw a talk on this recently by Prof. Bill Freeman, a co-author of the above work. The visual mic idea is based on a general technique for amplifying small motions; the motions here are the tiny movements of the bag.

The more generic idea is here: http://people.csail.mit.edu/nwadhwa/phase-video/

It seems like it could have applications to lots of areas.

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by nkzednan on Thursday August 14, 2014 @11:24PM (#8180913)

https://news.ycombinator.com/item?id=8131785 - item and discussion from early August about the MIT research

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by trhway on Thursday August 14, 2014 @07:16PM (#8180319)

that an old trick by bouncing laser of the objects near the source of the sound.

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by gamegoblin on Thursday August 14, 2014 @08:16PM (#8180475)

I think OP was referring to a recent demo that uses only video. No special equipment required.

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by jradd on Friday August 15, 2014 @04:19AM (#8181376)

I'm curious if anybody has ever had any real success with this concept as a personal project. (record audio with light) My results were lackluster to say the least.

[ Parent | on HN ]

Re:The Gyroscopes in Your Phone Could Let Apps Eavesdrop on ... by InclinedPlane on Friday August 15, 2014 @05:09AM (#8181459)

Laser microphones are an old trick, using high speed camera video of ordinary objects is a decidedly new trick.

[ Parent | on HN ]