Sound insulation of decorative wall panels

1. If the average sound insulation of the objective quantity is less than 30 decibels, but the normal conversation sounds next door can be heard clearly and it is easy to understand the content of the conversation, then the sound insulation effect is very poor.

2. If a loud conversation can be heard quite clearly at 30~35 decibels, and a normal conversation can be heard, but it is not easy to understand, then the sound insulation effect is very poor.

3. At 35-40 decibels, loud conversations can be heard, but not very clear. Normal conversations are also weak when heard, and the sound insulation effect is obviously average.

4. In the case of 40~45 decibels, you can hear a loud conversation, but you can't understand the whole idea, and you can't hear it in a normal conversation, and the sound insulation effect is better.

5. If you can't hear loud conversations at 45-50 decibels, and you can only hear the loudest voices of loud shouts and radios turned on, then the sound insulation effect is good. Can play a 60 points.

6. Loud shouting at 50-55 decibels can't be heard, and the loudest sound of the radio can't be heard, so the sound insulation effect is excellent.