Patent ID: 9197955
Filing Date: 2015-11-24
Classification: H04R

Abstract:
1. A microphone unit comprising: a first plurality of miniature microphones for respectively recording audio signals; a second plurality of miniature microphones for respectively recording audio signals; a housing; an acoustic resistor; and a carrier unit in the form of a printed circuit board comprising; wherein the first plurality of miniature microphones is arranged on the carrier unit such that the first plurality of miniature microphones is configured for recording a sound pressure on the front side of the carrier unit; and wherein the second plurality of miniature microphones is arranged on the carrier unit such that the second plurality of miniature microphones is configured for recording a sound pressure on the rear side of the carrier unit; wherein the carrier unit is provided within the housing; and wherein the acoustic resistor is configured to close off a rear volume in front of the rear side of the carrier unit inside the housing thereby producing a sound pressure difference between the front side and the rear side of the carrier unit.