RU1821180C - Method for stimulating development of components of sound-producing system in deaf patients - Google Patents

Abstract

The invention relates to medicine, in particular to devices that allow the development of a sound-forming apparatus in the deaf. An object of the invention is to increase the development efficiency of a sound generating apparatus. The goal is achieved in that the frequency of the fundamental tone is highlighted in the spectrum of the speech signal of the learner and the corresponding decomposition band of the speech spectrum is visually displayed. A device that implements the method includes a microphone, a microphone amplifier, narrow-band filters, actuators, a limiter amplifier, a filter with a decreasing amplitude-frequency characteristic, an amplifier, a detector, a controlled generator, a delay element, an initial frequency setting unit. 1 ill.

Description

The invention relates to the field of medicine and can be used to develop speech in the deaf.

The aim of the invention is to increase the development efficiency of a sound-forming apparatus.

The drawing shows an example of a device that implements the specified method.

It contains a series-connected microphone 1, a microphone amplifier 2, a limiter 3 and a low-pass filter 4, as well as N series-connected narrow-band filters 5 and actuators 6.

A power amplifier 7, a detector 8, a controlled generator 9 connected in series, the output of which is connected to the first inputs of the filters 5, a delay element 10, an initial frequency setting unit 11, the outputs of which are connected to the output of the limiter 3, and the outputs, respectively, to the second inputs of the filters 5 and the second input of the controlled generator 9.

The method is carried out as follows.

The sound of the learner’s voice through microphone 1 and microphone amplifier 2 is fed to a symmetric limiter amplifier 5, from which a constant amplitude signal is fed to filter 6 with a decreasing frequency response, the amplitude of the signal at the output of which becomes dependent on the average frequency of the signal input to the device . After detection, this signal is supplied to the control input of the controlled harmonic signal generator 9. Under the influence of the control signal, its frequency changes. Narrow-band filters 3 provide at each moment of time the operation of only one actuating element 4, which can be used as

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multi-colored light bulbs or electromechanical toys.

Block 11 provides an initial setting of the generator frequency below the frequency of the low-pass filter itself.

Block 10 provides a delay in turning on the actuating elements 4 during the establishment of the frequency of the controlled oscillator under the influence of a control signal.

Considering that deaf people usually make sounds at their maximum possible frequency (falsetto), the method allows you to modulate the pitch of the voice and reduce the average frequency to normal by simple tricks.

The combination of color and movement of different toys allows you to create many games based on this device, stimulating

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learning and accelerating the learning process of the child.

Claims (1)

The claims A method for developing the elements of a sound-forming apparatus in the deaf, which consists in decomposing the frequency spectrum of a student’s speech signal into N bands, followed by a visual display of their intensity, characterized in that, in order to increase the development efficiency of a sound-forming apparatus, the frequency of the main tone that controls the frequency of the generated harmonic signal of the audio frequency, visually displayed in the corresponding band of the expansion of the spectrum of the speech signal ala.