Patent ID: 9659149
Date: 2017-05-23
CPC Classifications: A61B,G16H

Claim:
1. A medical monitoring system comprising a digital data processor configured to implement: a sound level analyzer configured to receive an audio signal from a medical environment surrounding a patient and provide an indicator for perceived levels of sound generated by sound events occurring in the medical environment; a data storage modality configured to receive and store the indicator for the perceived levels of sound and corresponding information, obtained from an associated patient monitoring system, and indicative of at least one of physical or mental condition of the patient; a sound event analyzer configured to perform an overall sound analysis related to the at least one ofthe physical or mental condition of the patient based on the indicator and the corresponding information stored in the data storage; and a sound scene analyzer configured to analyze and classify the audio signal, create a list of one or more sound sources that generate the sound events occurring in the medical environment surrounding the patient, and differentiate avoidable sources of negative influence on rest or sleep of the patient from unavoidable sources of negative influence, wherein the sound scene analyzer is configured to distinguish unavoidable and essential alarm sounds from avoidable and non-essential alarm sounds based on training information from at least one of a patient monitoring system or a hospital central monitoring database, and wherein the sound event analyzer is configured to identify the sound events occurring in the medical environment based on analyzing tonality, harmonic structure, rhythmicity, predictability, spectral content, measures of onset steepness, percussiveness, and repetitiveness of the audio signal.