Soft-talker: a sound level monitor for the hard-of-hearing using an improved tactile transducer.
We describe a small wearable device which enables deaf people to monitor the volume of their voices; it consists of a microphone, amplifier, signal rectifier, smoothing and a level detector connected to a wrist-worn vibrator, and provides vibrotactile feedback of voice level.
D001698:Biomedical Engineering; D012048:Correction of Hearing Impairment; D006801:Humans; D008991:Monitoring, Physiologic / Q000295:instrumentation*; D012867:Skin; D013060:Speech; D013061:Speech Acoustics; D013068:Speech Production Measurement / Q000295:instrumentation*; D014159:Transducers; D014732:Vibration