JPS607273B2 - vocal training device - Google Patents

Description

[Detailed Description of the Invention] The present invention is aimed at hearing-impaired people, and is particularly aimed at training vocalizations such as toxicity (presence and strength of laryngeal vibrations), nasality (presence and strength of nasal vibrations), etc. This relates to training equipment.

Traditional methods for vocal training for hearing-impaired people, such as voicing and nasality, include placing a hand on the larynx or nasal wings and sensing the vibration state of that area, or using a contact microphone. The system detects vibrations in the larynx or nose, visualizes them as vibrations on a meter or as waveforms on a cathode ray tube oscilloscope, and trains voicing by distinguishing between voiced and unvoiced based on the strength of vibrations displayed or the amplitude of the waveforms. Training for nasal pronunciation and, conversely, training for eliminating unnecessary nasalization is being conducted.

However, it is difficult to know the vibration state with sufficient accuracy using the above-mentioned method of applying the hand. In addition, with the method of using a contact microphone, the state of the training trial is visualized and displayed as the vibration of a meter or the waveform of a CRT. It is difficult to understand because it is difficult to connect with it. Furthermore, since vocal training requires mental concentration over a considerable period of time, concentrating on a meter or cathode ray tube causes great fatigue to the trainee. Furthermore, the conventional method has the disadvantage that the apparatus becomes large because it uses a meter or a cathode ray tube.
An object of the present invention is to provide a simple vocal training device that allows accurate, intuitive, and easy-to-understand perception of the correctness or error of a vocalization when training for voicing, nasality, etc. FIG. 1 shows an embodiment of the vocal training device of the present invention, in which 1 shows a detection means for detecting vibration information generated when a trainee vocalizes, and tactile transmission of vocal information to the trainee. 2 is a switching circuit that switches between the vibration information signal detected from the detection means and the signal supplied to the transmission means for tactilely transmitting to the trainee; , 3 is an intensifier that amplifies the vibration information signal that has passed through the cutting circuit 2, 4 is a peak hold circuit that detects and holds the peak of the output of the intensifier 3 at regular intervals, and 5 is a peak hold circuit 4. 6 is an oscillator that oscillates at an oscillation frequency of several tens to IKHz to provide a carrier frequency component to the oscillating modulator 5;
This is an output multiplier 7 that drives a transmission means. Note that the above-described detection and transmission means 1 can be realized using, for example, a piezoelectric or electrodynamic transducer.

Further, the switching circuit 2, the amplifier 3, the peak hold circuit 4, the mid-oscillation modulator 5, the oscillator 6, and the output amplifier 7 can be realized using ordinary diodes, transistors, operational amplifiers, and the like. Figures 2 a to e are the output of the detection means 1 and the intensifier 3 in the vocal training device shown in Figure 1, respectively.
2 is a signal waveform diagram of the output of the input hold circuit 4, the output of the oscillator 6, and the input to the transmission means 1. FIG.

The operation of the vocal training device will be explained below with reference to FIGS. 1 and 2.

Vibration of the larynx or nasal wings caused by the trainee's utterances is transmitted from the means 1 (hereinafter referred to as a transducer) consisting of a mechanical vibration-electrical signal converter attached to the larynx or nasal wings to a switching circuit in the form of an electrical signal as shown in Figure 2a. Sent to 2. As shown in FIG. 2b, the switching circuit 2 is switched to apply the signal shown in FIG. 2a to the intensifier 3 at regular time intervals, for example, at intervals of 0.1 seconds. The signal waveform as shown in FIG. 2b is intensified by the intensifier 3. Next, the peak hold circuit 4 obtains a peak hold output signal waveform as shown in FIG. 2c. The output waveform of the oscillator 6 is as shown in FIG. 1 is driven with the timing and waveform shown in FIG. 2e. In other words, although the detection of vibration information from the trainee and the tactile transmission of vocalization information to the trainee are performed alternately in time, the vocalization information is transmitted almost continuously in terms of actual skin sensation. . Therefore, the experimental results of vocalization training for voicing and nasality showed extremely good training effects. As is clear from the above description, according to the present invention, in a voice training device for voicing, nasality, etc., which has a tactile information transmission means, it is possible to accurately and intuitively understand the degree of correctness or error of the utterance. I can let you know.

Furthermore, the voice information detection means and the transmission means can be integrated, and the apparatus and the equipment can be easily worn during training. As a result, in a voice training device for voicing and nasality for people with hearing impairments,
It can have a significant effect.

[Brief explanation of the drawing]

FIG. 1 is a diagram of a vocal training device according to an embodiment of the present invention. Fig. 2 is a signal waveform diagram of the same main part. 1...
・Detection and transmission means, 2...Switching circuit, 3, 7...
...magnifier. Figure 1 Figure 2

Claims (1)

[Scope of Claims] 1. Detection means for detecting vibration information from parts of the trainee that vibrate due to the trainee's utterances, such as the larynx and nasal wings; A transmission means for transmitting, a transmission drive means for driving the transmission means based on vibration information detected by the detection means, and a control circuit for controlling the detection means and the transmission means to operate alternately. A vocal training device comprising: 2. The vocal training device according to claim 1, wherein a mechanical vibration-to-electrical signal converter is commonly used as the detection means and the transmission means.