Audio rendering system

An audio rendering device;

• comprising:
• at least one wireless communication interface configured to receive a first plurality of audio packets from a wireless communication device, the first plurality of audio packets including frames of audio data for a first audio channel from a set of one or more audio channels, wherein the at least one wireless communication interface is also configured to receive one or more messages from an other audio rendering device, the other audio rendering device being configured to receive a second plurality of audio packets from the wireless communication device, the second plurality of audio packets including frames of audio data for a second audio channel from the set of one or more audio channels;
• a signal processor configured to process the frames of audio data included in the first plurality of audio packets for rendering;
• wherein the audio rendering device is configured to release, at respective first buffer release times, the frames of the audio data in the first plurality of audio packets from a first buffer to the signal processor for rendering;
• and
• wherein the audio rendering device is configured to synchronize, based on the received one or more messages, the first buffer release times with second buffer release times at which the other audio rendering device releases frames of audio data in the second plurality of audio packets from a second buffer associated with the other audio rendering device.

A method of synchronizing audio content rendered by a pair of audio rendering devices, the pair of audio rendering devices comprising a first audio rendering device and a second audio rendering device, the method comprising:

• receiving, by the first audio rendering device, a first plurality of audio packets from a wireless communication device, the first plurality of audio packets including frames of audio data for a first audio channel from a set of one or more audio channels;
• receiving, by the second audio rendering device, a second plurality of audio packets from the wireless communication device, the second plurality of audio packets including frames of audio data for a second audio channel from the set of one or more audio channels;
• releasing frames of audio data in the first plurality of audio packets from a first buffer for rendering at respective first buffer release times;
• releasing frames of audio data in the second plurality of audio packets from a second buffer for rendering at respective second buffer release times;
• receiving, by the first audio rendering device, one or more messages from the second audio rendering device;
• and
• synchronizing, by at least the first audio rendering device, the first buffer release times with the second buffer release times based on the received one or more messages.