överföringsljud

överföringsljud, which translates to "transfer sound" or "transmission sound" in English, refers to sound that is transmitted through a solid medium, such as a wall, floor, or ceiling, from one space to another. This phenomenon is distinct from airborne sound, which travels through the air. When a sound source vibrates in one room, these vibrations can travel through the structure connecting it to an adjacent room, becoming audible there.

The transmission of överföringsljud depends on several factors, including the mass and density of the material separating the spaces, its rigidity, and the presence of any insulation or damping materials. Denser and more massive materials generally provide better sound insulation, reducing the amount of sound transmitted. Conversely, lightweight or flexible structures can be more susceptible to överföringsljud.

Common examples of överföringsljud include hearing footsteps from the apartment above, the sound of plumbing or appliances from another room, or music played in a neighboring dwelling. Addressing överföringsljud often involves improving the sound insulation of the building elements. This can be achieved through methods like adding mass to walls and floors, using resilient materials to decouple structures, or incorporating sound-absorbing materials within cavities. Building codes and acoustic design principles aim to minimize unwanted sound transmission between spaces to ensure comfort and privacy.