Can such psychological problems cause changes in the voice?

Psychological shadows. I'm not a professional, I can't help you, let's take a look.

は seems to be transformational hysteria. Your problem is not too serious, look at the opening point.

This is a normal phenomenon, people will go through a stage of voice change, after the voice change, the voice becomes thicker and harder, this is inevitable, that is, the saying is reversed, it is normal to not be able to sing, the childhood period is because the vocal cords are narrow, the treble is easy to go up, and after adolescence to maturity in all aspects, the vocal cords become wider, the voice is loud, and the singing is easy to go out of tune, which is normal!

Hello, does a person's emotional changes affect the voice, it is normal that emotional changes will have an impact on the sound, I have no way to help you interpret this phenomenon from a physiological point of view, but from the observation, everyone's voice will change a little when they are emotional, but most people will become sharp. Rough, hoarse, and relatively rare. The human body is a very complex system, and emotions are not just what we can see on the surface, the impact of emotions is actually very large, due to the complexity of the human body system, emotional instability will affect a lot.

For example, the rage stimulates adrenaline and the like, don't be too nervous, relax.

Other phenomena related to sound changes are as follows:

The strength of the sound is related to the amplitude of the vibration. The vibration of the object is the action element of the sound, so the greater the vibration amplitude, the louder the sound, this vibration can be popularly understood as the amplitude, that is, the greater the amplitude, the louder the sound, and the stronger the stupid and weaker the key is more obvious and clever.

Amplitude refers to the maximum possible value of the physical quantity of vibration, usually expressed as a. It is a physical quantity that indicates the range and intensity of vibration.

In mechanical vibration, the amplitude is the logarithmic value of the maximum displacement of the object from the equilibrium position when it vibrates, and the amplitude is numerically equal to the magnitude of the maximum displacement. Amplitude is a scalar quantity, and the unit is expressed in meters or centimeters. Amplitude describes the magnitude of the vibration amplitude of an object and the intensity of the vibration.

In AC circuits, current amplitude or voltage amplitude refers to the maximum value of current or voltage change, also known as the peak value of voltage or current. In acoustic vibration, the amplitude is the maximum value of the difference between the sound pressure and the pressure at rest. The amplitude of a sound wave is measured in decibels.

The amplitude of the sound wave determines the sound intensity.

The amplitude of a simple harmonic vibration is constant, it is a constant determined by the initial conditions of the harmonic vibration (initial displacement and initial velocity). The energy of the harmonic vibration is proportional to the square of the amplitude. Therefore, the square of the amplitude serves as a sign of the harmonic vibration intensity.

The amplitude of the stabilization phase of the forced vibration is also a constant, and the amplitude of the damping vibration is gradually decreasing.

Should the sound be disturbed in the air + the processor on your mp4 is not good so the sound you hear will change.

When you say a word, others hear it, and you hear it yourself. However, what others hear is not the same as what you hear yourself. Can you believe it?

This is easily demonstrated with a tape recorder. Use a tape recorder to record a passage of your own words and play it out, and after you listen to it, you will feel that it is not your own voice, it is completely different from the voice you are familiar with. To others, the sound coming out of the tape recorder is exactly your voice, and it hasn't changed at all.

What's going on?

It turns out that when a person speaks, the vibration of the vocal cords causes the vibration of the air, which transmits the sound waves to the ears of others, and others hear the sound. The sound produced by the vibration of the vocal cords is also transmitted directly to the inner ear through the bones and muscles of the head. Since the ability of solid sound transmission is much better than that of gas, the sound you hear is mainly through the skeletal muscles of the head, and the sound is loud, and the sound heard by others is mainly transmitted through the air, and it will sound a little different.

Therefore, it is not the same for others to listen to your voice as you listen to your own.

Now do a little experiment, and you will be convinced that what is said above is not a lie. Prepare a thin wire and a metal spoon. Tie the spoon firmly in the air with a thin wire and tap the spoon with a knife.

You will hear a crisp sound from the spoon. Then, you pinch the ends of the thin wire with your hands, press them against both ears, plug the ears, and leave the spoon in the air. Ask someone to tap the spoon, and this time, you'll hear the spoon make a loud and pleasant sound, which is very different from the previous one.