Changing the Properties of the Audio Broadcast Signal in Adaptive Transmission Channels

A paradoxical situation has occurred and is maintained, when all existing channels of sound broadcasting signal (SBS) are adaptive and are determined by the capabilities of matching the properties of the transmitted signal with the capabilities of the transmission channel, and the quality assessment methods are designed for a stationary channel with unchanged properties in the process of transmission. We measure the change of the signal form, the simplest stationary test signal, and for the real signal the form is not known to be preserved. The following are examples of the links that make the largest changes in the SBS.