MICROPHONE MATCHING UNIT AND HEARING AID

The invention relates to a method and an apparatus for performing a microphone matching of a hearing aid comprising a first microphone (310), a second microphone (320) and a receiver (420) in a predetermined spatial arrangement to each other. The method comprises the steps of: generating (110) an ou...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LARSEN, Jan Thor Lunddahl, PEDERSEN, Michael Syskind
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS PUBLIC ADDRESS SYSTEMS
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Beschreibung
Zusammenfassung:	The invention relates to a method and an apparatus for performing a microphone matching of a hearing aid comprising a first microphone (310), a second microphone (320) and a receiver (420) in a predetermined spatial arrangement to each other. The method comprises the steps of: generating (110) an output sound signal by means of the receiver; picking up (120) a first and second input sound signal by the microphones while the output sound signal is generated; converting (130) the first and second input sound signals into electrical microphone output signals by means of the microphones; determining (140) a first and second microphone response of the microphones; determining (150) a microphone response difference (210) between the first and second microphone responses; determining (160) a matching difference (250) between the microphone response difference (210) and a predetermined reference microphone response difference (220); and adapting (170) at least a first microphone gain of the first microphone according to the matching difference to reduce the matching difference.