| 摘要 |
A system for monitoring sound pressure levels at the ear includes an ambient sound microphone for receiving ambient sounds and an ear canal microphone for producing audio signals as a function of ambient sound received at the ambient sound microphone and sound signal received from an associated personal audio device. A logic circuit is operatively associated with the ASM and ECR calculates a total SPL_Dose experienced by the ear at a time t. In one exemplary embodiment the total SPL_Dose is calculated by determining estimated SPL_Dose for periods Deltat. The logic circuit then may then select an action parameter in response to the Total SPL_Dose.
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