Is it a bad thing that it seems sensible that Google has a patent for technology to serve me ads based on the background noise of a phone call I’ve made (see Drew Olanoff, Google Wants to Serve Ads Based On Your Phone’s Background Noise) ?
From the patent application
Information about an environmental condition of a remote device is received, the environmental condition being determined based on a signal output from a sensor of the remote device or a sensor coupled to the remote device. An advertisement is identified based on the environmental condition, and the advertisement is provided to the remote device.
Just an every day kind of magic, right? Nothing weird here.