EARPIECE, HEARING DEVICE AND SYSTEM FOR ACTIVE OCCLUSION CANCELLATION

Disclosed is a system, a hearing device and an earpiece configured to be worn in an ear of a user. The earpiece comprising: a first input transducer configured for receiving sound from the ear canal of the user's ear, the first input transducer being configured for providing a first input transducer signal; an output transducer configured for providing sound to the ear canal, the output transducer being configured for providing an output transducer signal; a processing unit comprising an active occlusion cancellation algorithm configured to generate an output signal based on at least the first input transducer signal for providing active occlusion cancellation; wherein the earpiece further comprises: an acoustic filter configured for improving the active occlusion cancellation, the acoustic filter comprising: a vent channel for venting the ear canal, and an acoustic vent resonance cancelling filter implemented in the vent channel.