Multichannel content distribution

A playback device comprising:

• one or more processors;
• and
• tangible, non-transitory computer-readable media comprising program instructions executable by the one or more processors such that the playback device is configured to:
• while the playback device is operating as a rendering playback device in a playback system, receive reference clock timing information from a reference clock separate from the playback device;
• receive two or more data streams, wherein each data stream comprises (i) audio content, and (ii) playback timing information for the audio content;
• for each data stream of the two or more data streams, generate sample-rate adjusted audio content for the data stream by adjusting a sample rate of at least a portion of the audio content of the data stream to compensate for a difference between a rendering clock at the playback device and the received reference clock timing information;
• generate a mix of the sample-rate adjusted audio content of the two or more data streams at the playback device;
• and
• play the mix of the sample-rate adjusted audio content of each data stream based on a clock time of the rendering clock at the playback device and the playback timing information for each data stream.