Sound-absorbing material, soundproofing sheet, 4cm thick, corrugated 50x50cm, set of 80, sound-absorbing sheet, cushioning sponge, high density, cushioning material, studio, recording room, construction site, soundproofing measures

Size: 50cm x 50cm x 4cm thick per sheet Color: Black Number of sheets: Set of 80 sheets The 4cm thick corrugated sound absorbing material has high sound absorption and sound insulation properties in the low to medium frequency range, and its special uneven shape absorbs sound from various directions. Use it for soundproofing, noise reduction, soundproofing, and sound absorption measures for interior decoration, musical instruments, piano rooms, car audio, computers, private rooms, studios, etc. that also absorb sound. Sound absorption is when the sound absorbing material absorbs sound and reduces the reverberation of sound. Sound absorption measures are to install sound absorbing materials on the ceiling and walls to reduce the reflection of sound generated in the room, reducing the reverberation in the room, suppressing reflections, and reducing the indoor noise level. Corrugated urethane sound absorbing materials have a porous structure. Porous refers to a structure with a large number of small holes. Sound penetrates the porous material, diffuses, and is converted into thermal energy through friction with the surrounding walls, viscous resistance, and vibration of the small fibers of the material, reducing the rate of reflection toward the sound source. This is called sound absorption. Basically, even very thin sound absorbing materials can absorb high-pitched sounds, but for low-pitched sounds with long wavelengths, the sound absorbing effect tends to be poor unless the material is thick. Anyone can DIY freely. Attach and adhere with the double-sided tape on the back.