What is the Sound Absorption Principle of Fabric Sound-absorbing Boards?
The fundamental principle of sound absorption in fabric acoustic panel is primarily based on the acoustic properties of porous materials. This principle facilitates sound absorption through mechanisms such as frictional damping and the conversion of sound wave energy.
Typically, the interior of fabric sound-absorbing boards is filled with porous materials (e.g., glass fiber cotton, polyester fiber cotton), which contain a multitude of tiny interconnected pores. Sound waves can penetrate these minuscule pores within the material. As they travel through these cavities, air molecules repeatedly collide with the pore walls, gradually transforming sound energy into heat, which is subsequently dissipated. Porous materials exhibit exceptional absorption capabilities for medium and high frequencies—such as human voices and musical instrument sounds—due to their relatively short wavelengths that are more susceptible to frictional losses within the pores.
The fabric layer covering the surface of the fabric sound-absorbing board typically has acoustic permeability (a breathable structure) that does not significantly obstruct sound waves from entering the internal porous material. While this fabric may absorb a small amount of sound energy itself, its primary functions are to provide aesthetic appeal and protection for the internal materials while preventing acoustic insulation from escaping.
When an appropriate cavity distance is maintained between the fabric sound-absorbing board and adjacent walls, this configuration creates a resonance system that enhances low-frequency absorption and optimizes overall performance across all frequency ranges.
Specifications of fabric sound-absorbing boards
- Base material: 80-120kg/m³ acoustic cotton
- Finish: A/B/C grade acoustic fabric (can be used for spray printing)
- Standard thicknesses: 25mm,50mm
- Conventional corner shapes: right angles, bevels
- Edge frame: Cured frame or aluminum frame
- Common specifications: 600X600mm, 600X1200mm, 600X2400mm
- Authoritative test report: Sound absorption coefficient, fire resistance, environmental protection
- Customization options are supported: size, shape, fabric, and acoustic cotton
Fabric Sound-absorbing Boards Reference EXW Price / Purchase Qty.
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Aluminum Frame Fabric Sound-Absorbing Panel >= 100 m2 Negotiable |
600×2400 mm Fabric Wrapped Acoustic Panel >= 100 m2 Negotiable |
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The influence of key technical parameters
Material porosity: If the porosity is too small or too large, it will affect the sound absorption efficiency. It is necessary to balance the permeability and frictional resistance.
Thickness and density: Thicker materials can absorb lower-frequency sound waves, and density affects the ease with which sound waves can enter.
Installation method: Installing away from the wall can enhance the absorption of low frequencies, while closely adhering to the wall mainly absorbs medium and high frequencies.
Application scenarios
- Recording studios, cinemas, meeting rooms (controlling reverb, improving voice clarity)
- Office Spaces, classrooms (noise reduction, improvement of acoustic environment)
- Home space (combining decoration and sound absorption
About CYATCO Direct Factory
Professional sound-absorbing board manufacturer
Core features
- Focusing on fabric/soft package sound-absorbing boards, CYATCO has a deep range of products, exquisite craftsmanship, and strong customization capabilities (in terms of size, fabric, and shape).
- CYATCO has a wide range of product lines, providing a full range of acoustic solutions from sound absorption, sound insulation, to diffusion. We have strong R&D capabilities and rich project experience.
Suitable for customers
- Large-scale projects, professional halls, and customers with overall demands for acoustic design.
- Customers who have a clear demand for fabric sound-absorbing boards and pursue personalized customization and cost performance.
- Customers who pay attention to the environmental protection grade of materials, the stability of physical properties, or make large-scale purchases.