How does aluminum affect sound transmission?

Aluminum has a high density and stiffness, which makes it an effective conductor of sound. When sound waves hit an aluminum surface, the vibrations are quickly transmitted through the material due to its low internal damping. This results in a clear and efficient transfer of sound energy. However, aluminum's high reflectivity can also lead to a significant amount of sound being reflected rather than absorbed, which can affect the acoustics in a space, potentially causing echoes or reducing sound absorption. Additionally, aluminum's conductivity can lead to a faster decay of sound within the material, impacting the duration and quality of sound transmission.