👉 Build your own acoustic treatment: [ Ссылка ] 📉 Free Room Analysis: [ Ссылка ]
✅ eBooks & Forum: [ Ссылка ]
- Sign up for my free room acoustic training videos and ebook at [ Ссылка ] There's a lot of confusion around what constitutes sound absorbing materials. So in this video I look at the real definition to help give you a better understanding of how they work and their application.
Sound absorption is a process where air born energy is converted to heat. There are two kinds of air born processes that go on.
1. There's air movement (molecular velocity) which acoustic foams, limp mass absorbers and building insulation use. It requires air movement moving through the particular sound absorbing material and through that movement you get sound absorption, where you get the heat process and loss of amplitude.
2. Air pressure. This is completely different. It must be dealt with differently and applies to low frequency absorption. Why? Because this requires much greater mass and density and why acoustical foams and limp mass materials just won't do the job. They are too light weight. This is why diaphragmatic absorbers and helmholtz resonators need to be used to manage low frequency energy.
Please let me know if you have any questions as I will be happy to help answer them.
