10. The audio system of claim 1 , wherein the filtered volume determiner comprises a filter coupled to a peak detector, and wherein the filter is configured to receive the first signal and generate a tenth signal, and wherein the peak detector is configured to receive the tenth signal and generate the second signal.
10. The audio system of claim 1 , wherein the filtered volume determiner comprises a filter coupled to a peak detector, and wherein the filter is configured to receive the first signal and generate a tenth signal, and wherein the peak detector is configured to receive the tenth signal and generate the second signal. 11. The audio system of claim 10 , wherein the filter comprises a high-pass filter or a band-pass filter.