Invention Grant
- Patent Title: High fidelity systems, apparatus, and methods for collecting noise exposure data
-
Application No.: US15863027Application Date: 2018-01-05
-
Publication No.: US10264999B2Publication Date: 2019-04-23
- Inventor: Joseph J. Lacirignola , Trina Rae Vian , Christopher J. Smalt , David F. Aubin, Jr. , David C. Maurer , Mary Katherine Byrd , Christine M. Weston , Kerry A. Johnson , Shakti Davis , Olha Townsend , Paul T. Calamia , Edward H. Chen , Paula P. Collins
- Applicant: Massachusetts Institute of Technology
- Applicant Address: US MA Cambridge
- Assignee: Massachusetts Institute of Technology
- Current Assignee: Massachusetts Institute of Technology
- Current Assignee Address: US MA Cambridge
- Agency: Smith Baluch LLP
- Main IPC: G01H3/14
- IPC: G01H3/14 ; G01H3/12 ; A61B5/00 ; A61B5/12

Abstract:
Systems, apparatus, and methods for collecting, interpreting, and utilizing noise exposure data may include sensors to obtain an analog signal representative of impulse noise sound pressure and an analog signal representative of continuous noise sound pressure. At least one ADC may generate digital signals by sampling the analog signals at rates equal to or greater than twice the reciprocal of a minimum impulse noise rise time. Accelerometers may obtain data in close proximity to and remote from the sensors. At least one processor may include a first combining node to combine the digital signals to represent both the continuous noise and the impulse noise, a shock-artifact detection filter to identify a time frame including a shock artifact based on the accelerometry data, a frequency filter to generate a background-removed audio signal, an adaptive filter to estimate the shock artifact, and a second combining node to produce a shock-artifact-free audio signal.
Public/Granted literature
- US20180140233A1 HIGH FIDELITY SYSTEMS, APPARATUS, AND METHODS FOR COLLECTING NOISE EXPOSURE DATA Public/Granted day:2018-05-24
Information query