Preserving audio data collection privacy in mobile devices

保护移动装置中的音频数据收集隐私

Abstract

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.
本发明揭示用于在背景感知应用程序使用音频数据作出背景确定之前使用移动装置的硬件和/或软件来遮掩所述音频数据中的语音的技术。明确地说,捕获连续音频流的子集,使得从所搜集的音频无法可靠地重构语音(词语、短语和句子)。针对音频特性分析所述子集,且可作出关于周围环境的确定。

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