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Readily available audio interfaces on mobile devices (speakers and microphones) can be used to communicate data over a short range without the need for expensive infrastructure, using the imperceptible upper audio band (16–20KHz) of frequencies. A multi-tone Frequency Shift Keying (FSK) modulation is proposed for communication over the upper audio(More)
This paper presents a limited vocabulary isolated-word speech recognition system based on Hidden Markov Model (HMM) that involves two stage classification and is implemented on Texas Instruments' (TI) DaVinci embedded platform for a home infotainment system. A methodology using simple metric has been proposed for segmenting the words into sub-word units and(More)
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