How to evaluate the good and bad of a voice? This question is worth discussing. That is to say, the evaluation mainly depends on two aspects. One is subjective evaluation, that is, the sense of sound is felt by the auditory organs of the human ear; The second is objective evaluation, which is the real quality of voice. The subjective evaluation is based on listening, while the objective evaluation is based on testing, or measured by the standard of testing. If these two methods are used to evaluate the good and bad timbre at the same time, it will be more comprehensive.

The timbre can judge the sound quality

If subjective evaluation is used to evaluate the sound quality, there are some imperfections. There are many factors that affect the subjective evaluation.

1. Sensitivity of human ear

Because of the differences in each person's physiological structure, health and development, the hearing sensitivity of each person is different, and the hearing sensitivity of the left and right ears is also different. As a result, each person's hearing sensitivity is different, just like the human vision, some people's vision is 1.5 on the left and 1.2 on the right, while others are 0.5 on the left and 1 on the right. Therefore, this has a great impact on the evaluation of timbre.

2. The influence of age on hearing

For physiological reasons, with the increase of age, the tissue elasticity of hearing organs such as eardrum and cochlea to different frequency receptors decreases, so the ability to distinguish high-frequency sounds will gradually decline, which affects the accuracy of sound quality evaluation.

3. Influenced by educational level

The level of a person's education affects the subjective evaluation. Because the field of acoustics is a multi-disciplinary and complex physical phenomenon, it is closely related to physics, mathematics, architecture, music and other disciplines. If you want to have a comprehensive and accurate understanding of timbre, you need to have a fairly high level of quality in all aspects. Therefore, the comprehensiveness of a person's education and the depth of the level affect the evaluation of timbre.

4. Art appreciation ability

Each person's artistic accomplishment and artistic concept are different, resulting in a different understanding of the artistic expression of timbre. This is also one of the factors that affect the evaluation of timbre.

5. People's psychological influence

Everyone has different feelings about timbre in different periods, different moods, different living environments, and different mental states (mentality). This also affects the subjective evaluation of timbre

6. Everyone's preference

Everyone may belong to this or that art school in different art fields, so everyone has a certain preference tendency in psychology, which is allowed. Therefore, this factor also affects the evaluation of sound quality.

7. Different countries and nationalities

Different countries, different nationalities, different regions and different times have different standards and listening habits for understanding timbre. So the evaluation of timbre is very different.