Definitions for "Transmission Loss"
Sounds get absorbed as they travel through objects such as walls (similar to atmospheric absorption in the case of traveling through a medium). Transmission loss models are needed to realistically simulate sounds outside a window or in the next room.
The decrease of loss in power during transmission of energy from one point or another. Usually expressed in decibels.
Total loss encountered in transmission through a system.
Keywords:  lost, net, second, passing, power
The power lost in transmission between one point and another. It is measured as the difference between the net power passing the first point and the net power passing the second point.