About the role
We are looking for someone to own the question at the center of Subvocal: what can we physically measure from the human body that contains enough information to recover internal articulation?
The broader technical design space includes RF sensing, EMG, EEG, mmWave, and other non-invasive physiological sensing methods. For competitive and IP reasons, we are not publicly disclosing the exact architecture of our current system yet, although we share much more during the interview process.
The signals we care about are extremely subtle. They are affected by anatomy, sensor geometry, device placement, motion, interference, and changes of only a few millimeters. A sensing configuration that looks excellent on one person can fail on another, and a configuration with the highest apparent signal strength is not necessarily the one that contains the most useful information for decoding language.
You will own the sensing system from first principles through a wearable implementation. That includes deciding what measurements matter, designing the experiments that answer those questions, and working closely with ML to evaluate configurations based on actual cross-user decoding performance rather than isolated signal metrics.
Some of the problems you will work on include:
- Designing and evaluating new sensing geometries, modalities, channels, and frequency configurations.
- Understanding how anatomy and articulator movement affect the measured signal.
- Improving signal-to-noise ratio while preserving the information needed to distinguish similar phonemes.
- Building multi-channel systems and determining what genuinely independent information each channel adds.
- Modeling and measuring the interaction between sensors, electronics, mechanical design, and the body.
- Developing calibration and normalization methods that make measurements comparable across people, sessions, and devices.
- Translating a laboratory sensing setup into a compact, low-power wearable.
