PRESERVING AUDIO DATA COLLECTION PRIVACY IN MOBILE DEVICES

摘要

Techniques are disclosed for using the hardware and/or software of the mobile device to obscure speech in the audio data before a context determination is made by a context awareness application using the audio data. In particular a subset of a continuous audio stream is captured such that speech (words phrases and sentences) cannot be reliably reconstructed from the gathered audio. The subset is analyzed for audio characteristics and a determination can be made regarding the ambient environment.