Earhealth monitoring system and method II
First Claim
Patent Images
1. A method of operating an audio device configured to be inserted in an ear canal, the method comprising:
- measuring first sound pressure levels (SPLECR) of an electrical drive signal directed to an ear canal receiver (ECR) of the audio device during a time period Δ
t having a plurality of samples;
simultaneously measuring second sound pressure levels (SPLECM) for acoustic energy received by an ear canal microphone (ECM) of the audio device during the time period Δ
t;
calculating a sound pressure level (SPL) dose (SPL_DoseΔ
t) during the time period Δ
t using the second sound pressure levels (SPLECM) of the ECM;
combining the SPL dose (SPL DoseΔ
t) with an SPL dose of a previous time period to form a total SPL dose (SPL Dosetotal); and
modifying the electrical drive signal based on the first sound pressure levels (SPLECR) of the electrical drive signal and the total SPL dose, such that a value of the total SPL dose is maintained proximate to a SPL dose threshold over time.
11 Assignments
0 Petitions
Accused Products
Abstract
Methods of operating an audio device are provided. A method includes measuring sound pressure levels (SPLECM) for acoustic energy received by an ear canal microphone (ECM) during a time increment Δt; and calculating a SPL_DoseΔt during the time increment Δt using SPLECM.
-
Citations
9 Claims
-
1. A method of operating an audio device configured to be inserted in an ear canal, the method comprising:
-
measuring first sound pressure levels (SPLECR) of an electrical drive signal directed to an ear canal receiver (ECR) of the audio device during a time period Δ
t having a plurality of samples;simultaneously measuring second sound pressure levels (SPLECM) for acoustic energy received by an ear canal microphone (ECM) of the audio device during the time period Δ
t;calculating a sound pressure level (SPL) dose (SPL_DoseΔ
t) during the time period Δ
t using the second sound pressure levels (SPLECM) of the ECM;combining the SPL dose (SPL DoseΔ
t) with an SPL dose of a previous time period to form a total SPL dose (SPL Dosetotal); andmodifying the electrical drive signal based on the first sound pressure levels (SPLECR) of the electrical drive signal and the total SPL dose, such that a value of the total SPL dose is maintained proximate to a SPL dose threshold over time. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
Specification