Prenatal education music should be 45 decibels, and the sound should not exceed 80 decibels.

From a medical perspective, sounds that people do not need or like subjectively are noises. Sound loudness is measured in decibels. After testing: the noise generated by TVs, home theaters, combined speakers, etc. can reach 60 to 80 decibels; washing machines are 42 to 70 decibels; refrigerators are 32 to 50 decibels; ordinary conversations are about 40 decibels; loud conversations are Up to 80 decibels.

Under normal circumstances, sounds below 40 decibels have no obvious adverse effects, but if you are often exposed to sounds above 80 decibels, it will have more or less impact on multiple organs and systems of the human body. The fetus in the belly is also sensitive to these sounds.

High-decibel, high-frequency sounds will not only affect the rest of the fetus, but can also seriously damage the delicate cochlea during development, causing fetal hearing damage, and even further affecting the development of the nervous system. In addition, if pregnant women are exposed to strong noise for a long time, it may also cause intrauterine growth retardation, premature delivery, miscarriage or congenital malformations, low birth weight babies, etc.