A system for synchronizing audio and video signals comprising: a server configured to receive an audio visual signal and to output video content and multi-channel audio content over a first network connection and to output adaptive object-based audio content over a second network connection; wherein the multi-channel audio content is synchronized with the video content; a block coupled to the server over the first network connection and configured to receive the multi-channel audio content and to output the multi-channel audio content, wherein a current frame of the multi-channel audio content is output along with a synchronization signal containing track identifier and frame count information for a current frame of the adaptive object-based audio content for comparison with track identifier and frame count information of the adaptive object-based audio content; an adaptive audio processor coupled to the server over the second network connection and to said block over a third connection and configured to receive the multi-channel audio content, the synchronization signal and the adaptive object-based audio content; a comparator circuit of the adaptive audio processor configured to compare a track identifier and frame count of the received adaptive object-based audio content with the track identifier and frame count in the synchronization signal; and a playback system configured to render and playback the current frame of the adaptive object-based audio content if the track identifier and frame count of the received adaptive object-based audio content matches the track identifier and frame count in the synchronization signal, and otherwise to playback the multi-channel audio content. a server configured to receive an audio visual signal and to output video content and multi-channel audio content over a first network connection and to output adaptive object-based audio content over a second network connection; wherein the multi-channel audio content is synchronized with the video content; a block coupled to the server over the first network connection and configured to receive the multi-channel audio content and to output the multi-channel audio content, wherein a current frame of the multi-channel audio content is output along with a synchronization signal containing track identifier and frame count information for a current frame of the adaptive object-based audio content for comparison with track identifier and frame count information of the adaptive object-based audio content; an adaptive audio processor coupled to the server over the second network connection and to said block over a third connection and configured to receive the multi-channel audio content, the synchronization signal and the adaptive object-based audio content; a comparator circuit of the adaptive audio processor configured to compare a track identifier and frame count of the received adaptive object-based audio content with the track identifier and frame count in the synchronization signal; and a playback system configured to render and playback the current frame of the adaptive object-based audio content if the track identifier and frame count of the received adaptive object-based audio content matches the track identifier and frame count in the synchronization signal, and otherwise to playback the multi-channel audio content.