Hearing device configured for audio classification comprising an active vent, and method of its operation

A method of operating a hearing device, the hearing device comprising:

• a housing configured to be at least partially inserted into an ear canal of a user and comprising a venting channel, wherein the venting channel is configured to provide for venting between an inner region of the ear canal and an ambient environment outside the ear canal through the venting channel;
• an acoustic valve comprising a valve member moveable relative to the venting channel between different positions, wherein an effective size of the venting channel is adjustable by a movement of the valve member between the different positions, and an actuator configured to actuate the movement of the valve member;
• a sound detector configured to provide an audio signal representative of a detected sound;
• and
• an output transducer configured to be acoustically coupled to the inner region of the ear canal and to generate a sound output according to the audio signal after a processing of the audio signal,
• the method comprising:
• determining a characteristic from the audio signal;
• classifying the audio signal by assigning the audio signal to a class from a plurality of predetermined classes depending on the determined characteristic, at least two classes included in the plurality of predetermined classes associated with different audio processing parameters applied for the processing of the audio signal;
• and
• applying different audio processing parameters when the valve member is at the different positions, wherein the class assigned to the audio signal is the same for at least one of the plurality of predetermined classes at the different positions of the valve member,
• wherein the plurality of predetermined classes comprises a first class for which the associated audio processing parameters comprise audio processing parameters providing for a directivity of audio content in the processed audio signal, and a second class for which the associated audio processing parameters comprise audio processing parameters providing for an omnidirectional audio content in the processed audio signal.