[DANmode]

Probably worth reviewing prior art for inspiration:

0) https://www.usenix.org/conference/usenixsecurity14/technical...

1) https://infocondb.org/con/black-hat/black-hat-europe-2014/gy...

[adm4]

Sounds salty. https://people.csail.mit.edu/mrub/papers/VisualMic_SIGGRAPH2... use a potato chip bag as a microphone