A microphone assembly comprising: - a microphone with a first acoustic port, wherein the microphone is configured to convert acoustic waves received through the first acoustic port into an electric signal; - a filter housing with a second acoustic port and a rim; - a carrier (103, 120) attached to the microphone and to the rim of the filter housing such that the carrier (103, 120) and the filter housing together enclose a cavity with a first acoustic passage fluidly connecting the first acoustic port and the second acoustic port thereby enabling acoustic waves to propagate from the second acoustic port through the first acoustic passage to the first acoustic port, whereby a port axis is defined as a straight line extending in the direction of acoustic flow through the first acoustic port and further extending through the geometric center of the first acoustic port; and - a transducer element for converting the received acoustic waves into the electric signal, wherein: - the carrier (103, 120) and the filter housing are configured to cause the cavity to comprise an acoustic chamber and a second acoustic passage, wherein the second acoustic passage has a first opening into the first acoustic passage and a second opening into the acoustic chamber such that the acoustic chamber and the second acoustic passage together establish a Helmholtz resonator for suppressing acoustic energy within a first frequency band in acoustic waves propagating through the first acoustic passage; - the transducer element is arranged on a first side of the carrier (103, 120) and the filter housing is arranged at a second side, opposite the first side, of the carrier (103, 120), such that the transducer element is fluidly connected to the second acoustic port through the first acoustic port and the first acoustic passage; - the direction of acoustic flow through the second acoustic port is parallel to the port axis, and/or wherein the port axis extends through the second acoustic port, preferably through the geometric center of the second acoustic port; and - the filter housing comprises an inner portion with a central portion that has a depression formed by a central skirt extending towards the carrier (103, 120), characterized in that: - the central skirt terminates in a flange surrounding the second acoustic port at a distance from the carrier (103, 120). - a microphone with a first acoustic port, wherein the microphone is configured to convert acoustic waves received through the first acoustic port into an electric signal; - a filter housing with a second acoustic port and a rim; - a carrier (103, 120) attached to the microphone and to the rim of the filter housing such that the carrier (103, 120) and the filter housing together enclose a cavity with a first acoustic passage fluidly connecting the first acoustic port and the second acoustic port thereby enabling acoustic waves to propagate from the second acoustic port through the first acoustic passage to the first acoustic port, whereby a port axis is defined as a straight line extending in the direction of acoustic flow through the first acoustic port and further extending through the geometric center of the first acoustic port; and - a transducer element for converting the received acoustic waves into the electric signal, - the carrier (103, 120) and the filter housing are configured to cause the cavity to comprise an acoustic chamber and a second acoustic passage, wherein the second acoustic passage has a first opening into the first acoustic passage and a second opening into the acoustic chamber such that the acoustic chamber and the second acoustic passage together establish a Helmholtz resonator for suppressing acoustic energy within a first frequency band in acoustic waves propagating through the first acoustic passage; - the transducer element is arranged on a first side of the carrier (103, 120) and the filter housing is arranged at a second side, opposite the first side, of the carrier (103, 120), such that the transducer element is fluidly connected to the second acoustic port through the first acoustic port and the first acoustic passage; - the direction of acoustic flow through the second acoustic port is parallel to the port axis, and/or wherein the port axis extends through the second acoustic port, preferably through the geometric center of the second acoustic port; and - the filter housing comprises an inner portion with a central portion that has a depression formed by a central skirt extending towards the carrier (103, 120), - the central skirt terminates in a flange surrounding the second acoustic port at a distance from the carrier (103, 120).