In-ear headphone device with active noise control

An in-ear headphone device for insertion in an ear canal of a person, said in-ear headphone device comprising:

• a noise microphone, a loudspeaker and a signal processor arranged to provide an active noise control signal on the basis of a recorded audio signal from said noise microphone, wherein said loudspeaker is arranged to reproduce said active noise control signal in said ear canal;
• and
• a damped vent comprising one or more vent elements and one or more dampening elements, said damped vent being arranged to couple said ear canal to an external acoustic environment;
• wherein said damped vent is characterized by an inward vent transfer function HVI from said external acoustic environment to said ear canal;
• and
• wherein said damped vent is arranged to dampen an acoustic resonance of said one or more vent elements such that a resonance magnitude of said inward vent transfer function HVI of said damped vent in a resonance frequency range from 100 Hz to 2 kHz is maximally 3 dB greater than a reference magnitude of said inward vent transfer function HVI in a reference frequency range from 20 Hz to 100 Hz.

An in-ear headphone device set comprising

• a first in-ear headphone device and a second in-ear headphone device;
• wherein said first in-ear headphone device is arranged to be fitted into a first outer ear of a user and wherein said second in-ear headphone device is arranged to be fitted into a second outer ear of said user;
• wherein said first in-ear headphone device and said second in-ear headphone device both comprise:
• a noise microphone, a loudspeaker and a signal processor arranged to provide an active noise control signal on the basis of a recorded audio signal from said noise microphone, wherein said loudspeaker is arranged to reproduce said active noise control signal in a respective ear canal of said user;
• and
• a damped vent comprising one or more vent elements and one or more dampening elements, said damped vent being arranged to couple said ear canal to an external acoustic environment;
• wherein said damped vent is characterized by an inward vent transfer function HVI from said external acoustic environment to said ear canal;
• and
• wherein said damped vent is arranged to dampen an acoustic resonance of said one or more vent elements such that a resonance magnitude of said inward vent transfer function HVI of said damped vent in a resonance frequency range from 100 Hz to 2 kHz is maximally 3 dB greater than a reference magnitude of said inward vent transfer function HVI in a reference frequency range from 20 Hz to 100 Hz.