SENSING NON-SPEECH BODY SOUNDS

摘要

Methods, systems, and devices are disclosed for implementing mobile sensing of non-speech sounds from a human. In one aspect, a mobile sensing system includes a microphone to capture a diverse set of body sounds while dampening external sounds and ambient noises, wherein the captured diverse set of body sounds are not speech. The mobile sensing system includes a micro-controller in communication with the microphone to perform an algorithm for signal processing and machine learning using the captured diverse set of body sounds.

主权项

1. A mobile sensing system, comprising:
a microphone configured to capture a set of non-speech body sounds while dampening external sounds and ambient noises; an audio codec module receiving an analog audio signal representing the captured set of body sounds from the microphone and converting the analog audio signal to a digital signal; a micro-controller coupled to the audio codec module to filter out non-body sounds from the digital signal and preprocess the filtered digital signal into frame data; and an audio processor receiving the frame data from the micro-controller, configured to recognize the captured set of body sounds by performing body sound classification based on a set of discriminative acoustic features identified in the frame data.