Patent ID: 8838262

Claim:
A method for processing audio signals, comprising: generating multi-channel audio content comprising channel-based audio signals and playback information specifying speakers of a speaker array through which respective channel-based signals are to be played; generating adaptive audio content comprising object-based audio signals and three-dimensional location rendering information for the object-based audio signals; wherein the multi-channel audio content or the adaptive audio content are to be played out with video content; wherein the multi-channel audio content is synchronized with the video content; and providing a synchronization signal along with a current frame of the multi-channel audio content for synchronizing playback of the object-based audio signals relative to the video content, wherein the synchronization signal includes track identifier and frame count information for a current track and a current frame of the adaptive audio content; wherein the current frame of the adaptive audio content is to be played out if a track identifier and frame count of the received adaptive audio content matches the track identifier and frame count in the synchronization signal, and otherwise the multi-channel audio content is to be played back.