"On a comment about using audio and processing audio, you can use it for, my understanding generally of how companies use it… not just Facebook, but generally other apps that pull audio, is for environmental context," Wylie said. "So if, for example, you have a television playing versus if you're in a busy place with a lot of people talking versus a work environment." He clarified, "It's not to say they're listening to what you're saying. It's not natural language processing. That would be hard to scale. But to understand the environmental context of where you are to improve the contextual value of the ad itself" is possible.

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