Frequency-based compensation filter for in-ear monitors or headphones

A multichannel audio system comprising:

• a right-side audio transducer element for the user's right ear and a left-side audio transducer element for the user's left ear comprising a pair of earpieces or headphones, the audio transducer element for each ear comprising an audio transducer processing unit, a plurality of transducer amplifiers and a plurality of speakers;
• an audio base unit electronically communicating with the right-side audio transducer element for the user's right ear and the left-side audio transducer element for the user's left ear;
• a right-side compensation filter element for the right ear that modifies multichannel audio data to drive the speakers in the right-side transducer element in order to account for frequency detected hearing impairment in the right ear and auditory masking conditions in selected acoustic environments the user;
• and
• a left-side compensation filter element for the left ear that modifies multichannel audio data to drive the speakers in the left-side transducer element in order to account for frequency detected hearing impairment in the left ear and auditory masking in selected acoustic environments encountered by the user;
• and
• wherein the audio base unit is configured to output multichannel digital audio data before or after being modified by the right-side compensation filter element and the left-side compensation filter element, and the speakers in the right-side audio transducer element are driven by multichannel digital audio data modified by the right-side compensation filter element and the speakers in the left-side audio transducer element are driven by multichannel digital audio data modified by the left-side compensation filter element.