The MIT medial lab where this system is coming from specializes in the design and implementation of systems that integrate new (or not) sensing and information presentation methods (in this case EMG and bone conduction) into functional interfaces. Then depending on the variability of the spectra… the PLS model required more data to assure no false negatives… which weren’t as risky of an issue for health and safety in regards to meeting specifications for food and drugs since if failed the NIR… we had a specific standard operating procedure for the out of specification investigation and standard testing since the procedures were validated.and implemented on the specification as an “alternate test method”. I was using the hierarchical cluster analysis (PCA) to determine closest match to build against… then building an individual PLS model for the target at 100 with the closest match from the PCA model of everything at 0 to assure no false positives. For my NIR work, I didn’t think the genetic or neural network algorithms were as effective in regards to accuracy as what I was using. HHHmmm… I never discussed what the most effective algorithms were in regards to fastest processing time (latency) and accuracy. At the same time I had friends at TRW and Johnson Control working on the audio pattern recognition for voice commands. Interesting… I worked on NIR methods for pattern recognition. Posted in Medical Hacks Tagged bone conduction, mit, subvocalization, voice control Post navigation We’ve even seen robots controlled by brain waves. If this interests you, there has been research going on for years to allow people to send Morse code by manipulating their EEG waveforms. We have covered several projects that use it in the past.
That’s just plain old-fashioned bone conduction, which is a well-understood technique. In addition to picking up your silent speech, the headset can reply silently, too.
You can see a video of the system, below. Perhaps the MIT device has found a way around that problem. However, from what we know, the positioning of sensor electrodes is crucial and can vary not only by speaker, but also change for the same speaker. If you read much science fiction, you probably recognize this as subvocalization, which has been under study by the Army and NASA. We aren’t sure exactly how that works, but the FAQ claims it is similar to how you experience reading as a child.
Rather, it measures subtle cues of you silently vocalizing words. There is a headset - called AlterEgo - but it doesn’t actually read your mind. Recent news reports have claimed that an MIT headset can read your mind, but as it turns out that’s a little bit of fake news.
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