Ear input sound pressure level monitoring system

摘要

Systems and methods for monitoring a sound pressure level dose at an ear are provided. A system includes an audio transducer which outputs a sound signal is placed within an ear to receive sound at the ear. A sound level threshold detector determines whether a sound pressure level of the sound signal is at a minimum level and outputs a sound pressure level signal corresponding to the sound pressure level when the sound pressure level is not at the minimum level. A time period is calculated during which the sound pressure level is not at the minimum threshold level. A listening fatigue calculator determines whether a cumulative effect of exposure to the sound signal at the ear over the time period will cause harm to the ear. At least a portion of the system is disposed in situ at the ear.

主权项

1. A system configured to monitor a sound pressure level dose at an ear comprising:
an audio transducer configured to receive sound at the ear and configured to output a sound signal; a sound level threshold detector configured to receive the sound signal and determine whether a sound pressure level of the sound signal is at a minimum threshold level and outputting a sound pressure level signal corresponding to a sound pressure level of the sound signal when the sound pressure level is not at the minimum threshold level; a clock calculating a time period during which the sound pressure level is not at the minimum threshold level; and a listening fatigue calculator configured to receive the sound pressure level and the time period, where the listening fatigue calculator determines whether a cumulative effect of exposure to the sound at the ear over a monitored time period will cause harm to the ear which includes accounting for restorative periods.