What would you say if I told you I could tell what you're eating just by the sound you make when you chew? That's exactly the idea behind a research project at the Wearable Computer Lab in Zurich. As part of their work on an "automatic dietary monitoring system", the researchers determined that sound from mastication varies distinctly based on what is being eaten.
As part of their research they experimented on four different subjects by putting a microphone inside their ear canal while they ate various food types "typically found in a meal."With nearly an hour of recorded data, the analysis was that the ability to classify the food type was between 80% and 100%. The same results showed that the accuracy was 99% when determining if a subject was eating, based exclusively on the audio data.
Full report (PDF). Via pasta & vinegar.
Report Published by: Mark Raby