Northwestern University researchers have developed the first smart wearable device that
First wireless device of its kindBattery-powered and the accompanying algorithms are useful for professional singers, teachers, politicians, call center workers, trainers and anyone else who relies on the voice for effective communication and decision-making. In addition, clinicians can remotely and continuously monitor patients with voice disorders throughout their treatment.
Participated in the developmentmaterials scientists, biomedical engineers, opera singers and speech therapists. The interdisciplinary team's research was published in the journal Proceedings of the National Academy of Sciences.
The device accurately measures amplitudeand frequency of speech and singing. These two parameters are most important for determining the overall load on the vocal cords. Tracking them momentarily and collectively is essential to managing healthy vocalization patterns.
John A. Rogers of Northwestern University, device development team leader
Soft, flexible deviceThe postage stamp fits comfortably to the upper chest. It captures subtle vibrations associated with talking and singing. Captured data is instantly transmitted via Bluetooth to users' smartphones or tablets. They can track voice activity in real time throughout the day and measure how much total time people use voice. Special machine learning algorithms distinguish between speech and singing, which is useful for professional singers.
In the application, users will be able to set personal vocal thresholds. When they get close, a smartphone, smartwatch or other device will alert them.
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