AW: At file based sources, like USB, iPod, etc., which are directly handled by CPU, the adjusted values of time alignment can be applied instantly. At live sources like FM, DAB or AV-In, the CPU is not able to access random positions of the soundtrack, so here it is needed either to change the source or to restart the device. Reloading the live source avoids distortions during buffering.
Therefore it is recommended to adjust the time alignment during USB source music playback.