Method of operating a hearing aid and a hearing aid

A method of processing a signal in a hearing aid (50) comprises splitting an input signal into a multitude N of hearing aid frequency bands, receiving an input signal from an acoustical-electrical transducer, splitting the input signal into a multitude N of hearing aid frequency bands using a first...

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Bibliographische Detailangaben
Hauptverfasser:	Jepsen Morten Love, Hau Ole
Format:	Patent
Sprache:	eng
Schlagworte:	ACOUSTICS DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MUSICAL INSTRUMENTS PHYSICS PUBLIC ADDRESS SYSTEMS SPEECH ANALYSIS OR SYNTHESIS SPEECH OR AUDIO CODING OR DECODING SPEECH OR VOICE PROCESSING SPEECH RECOGNITION
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Beschreibung
Zusammenfassung:	A method of processing a signal in a hearing aid (50) comprises splitting an input signal into a multitude N of hearing aid frequency bands, receiving an input signal from an acoustical-electrical transducer, splitting the input signal into a multitude N of hearing aid frequency bands using a first filterbank, estimating speech, noise and hearing loss levels in said frequency bands, using an auditory model of the cochlea for a hearing impaired person to provide excitation values for speech and noise in said frequency bands, using said excitation values to calculated a speech intelligibility measure and optimizing said speech intelligibility measure by iteratively varying the applied gain in the hearing aid frequency bands. The invention also provides a hearing aid (50).