Now Google plans to spy on background noise in your phone calls to bombard you with tailored adverts.
Patent also describes using other environmental factors such as air temperature to produce ads.
Adverts could soon be tailored according to the background noise around you when using your smartphone, if a patent application by Google becomes reality.
The search engine giant has filed for a patent called ‘Advertising based on environmental conditions’.
The patent also describes using ‘temperature, humidity, light and air composition’ to produced targeted adverts.
‘For example, advertisements for air conditioners can be sent to users located at regions having temperatures above a first threshold, while advertisements for winter overcoats can be sent to users located at regions having temperatures below a second threshold.’