To provide a hearing aid for adjusting a voice processing parameter which improves an articulation degree according to the intensity of the correlation between a detected speech and a neural response.SOLUTION: The hearing aid includes: a processing unit for providing a processed signal on the basis of a microphone signal; a speaker connected to the processing unit, the speaker providing an acoustic signal on the basis of the processed signal; and a sensor for measuring the neural response of a user to an acoustic stimulation and providing a sensor output. The processing unit detects the presence of a produced voice on the basis of the microphone signal, processes the sensor output and the microphone signal, and estimates the articulation of the produced voice. The processing unit also adjusts the voice processing parameter of the hearing aid on the basis of at least the estimated articulation of the produced voice.SELECTED DRAWING: Figure 5
HEARING AID WITH SELF-ADJUSTMENT FUNCTION BASED ON BRAIN WAVES (ELECTRO-ENCEPHALOGRAM: EEG) SIGNAL