Earhealth monitoring system and method IV
First Claim
Patent Images
1. A system configured to monitor a sound pressure level dose at an ear comprising:
- an ear canal microphone configured to measure a first acoustic sound pressure level (SPL1) within an ear canal of the ear;
an ambient microphone configured to measure a second sound pressure level (SPL2); and
a logic circuit operatively coupled to the ear canal microphone, where the logic circuit is configured to;
calculate a noise reduction rating (NRR) using the SPL1 and the SPL2;
compare the NPR to a threshold value of the NRR; and
send a signal to indicate a sealing integrity compromise if the NPR is less than the threshold value of the NRR.
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Abstract
A system for monitoring sound pressure levels at the ear includes an ambient sound microphone (ASM) for receiving ambient sounds and an ear canal microphone (ECM) for producing audio signals as a function of ambient sound received at the ambient sound microphone and a sound signal received from an associated personal audio device. A logic circuit is operatively associated with the ASM and ECM calculates a total SPL_Dose experienced by the ear at a time t. The total SPL_Dose is calculated by determining SPL_Dose for periods Δt as measured at the ECM. The logic circuit may select an action parameter in response to the Total SPL_Dose.
28 Citations
16 Claims
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1. A system configured to monitor a sound pressure level dose at an ear comprising:
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an ear canal microphone configured to measure a first acoustic sound pressure level (SPL1) within an ear canal of the ear; an ambient microphone configured to measure a second sound pressure level (SPL2); and a logic circuit operatively coupled to the ear canal microphone, where the logic circuit is configured to; calculate a noise reduction rating (NRR) using the SPL1 and the SPL2; compare the NPR to a threshold value of the NRR; and send a signal to indicate a sealing integrity compromise if the NPR is less than the threshold value of the NRR. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 11, 12, 13, 14, 15, 16)
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10. The system of claim wherein the logic circuit is configured to compare the SPL1 to the SPL2 and determine whether the SPL1 includes an acoustic signal corresponding to a voice of user.
Specification