Abstract: A method of correcting the speech of a person affected by stammering comprises applying to the hearing organ of the person through an audio signal transmission channel his own speech delayed in time. The application of the speech is carried out in a frequency range the upper frequency limit of which is from 0.6 to 1.5 kilohertz. The audio signal transmission channel is blocked during the pauses between the speech fragments pronounced by the person.A device for correcting speech comprises a microphone, a delay unit and an earphone, all connected in series, an adjusting element for adjusting the frequency spectrum of the signal transmitted from the microphone to the earphone, a switching circuit for interrupting the transmission of signal from the microphone to the earphone, and a threshold circuit having its input connected to the microphone and its output connected to the control input of the switching circuit.