The invention relates to a method of providing dynamic hearing protection to a user, comprising: measuring the open ear resonance of an ear canal of the user or an ear canal (56) approximating the user ear canal, without a hearing protection device being worn in the ear canal, as a function of the angle of sound incidence measuring the open ear resonance of the ear canal of the user or an ear canal approximating the user ear canal, with a hearing protection device (10, 12) being worn in the ear canal, as a function of the angle of sound incidence forming the difference between the two measurements order to determine a hearing protection device specific differential head related transfer function inserting the hearing protection device into the users ear canal capturing audio signals from ambient sound emitted by a sound source by a microphone arrangement (19) of the hearing protection device determining the angle of incidence of the sound emitted by the sound source processing the captured audio signals by applying a frequency dependent gain function to the captured audio signals selected according to the determined angle of sound incidence to the audio signals, wherein each of the gain functions is determined by inverting said hearing protection device specific differential head related transfer function for the respective angle of sound incidence and stimulating the users hearing via the hearing protection device according to the processed audio signals.Linvention concerne un procédé visant à fournir à un utilisateur une protection auditive dynamique, ce procédé consistant à : mesurer la résonance oreille ouverte dun canal auditif de lutilisateur ou dun canal auditif (56) proche de celui de lutilisateur, sans placer de dispositif de protection auditive dans le canal auditif, en fonction de langle dincidence sonore mesurer la résonance oreille ouverte du canal auditif de lutilisateur dun canal auditif proche de celui de lutilisateur au moyen dun dispositif de prote
