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. Author manuscript; available in PMC: 2014 Oct 2.
Published in final edited form as: Proc ACM Int Conf Ubiquitous Comput. 2011;2011:385–394. doi: 10.1145/2030112.2030164

Figure 2.

Figure 2

(a) amplitude values for 5 second recording of audio (b) spectrogram of the recording with blue lines depicting inferred human speech