Audio synchronization in wireless systems

An apparatus for synchronizing a source device with a sink device, comprising:

• at least one processor of the source device configured to:
• transmit a stream of packets to the sink device;
• receive feedback from the sink device indicating packet arrival times of the packets at the sink device;
• determine, by the source device based at least on the feedback, an average time shift in the packet arrival times at the sink device, wherein the average time shift is relative to expected packet arrival times of the packets at the sink device;
• detect, by the source device, that the average time shift exceeds a threshold;
• and
• in response to the detecting, adjust, by the source device, a streaming time of the stream of packets to synchronize, within a predefined tolerance, the source device with the sink device.

A computer-readable medium comprising at least one of:

• flash memory, non-volatile random access memory, memory on processor, a hard disk, a random access memory, a read-only memory, an erasable programmable read-only memory, an optical fiber, a portable compact disk read-only memory, an optical storage device, or a magnetic storage device, for synchronizing a source device with a sink device, the computer-readable medium storing instructions which when processed by at least one processor perform a method comprising:
• transmitting, by the source device, a stream of packets to the sink device;
• receiving, by the source device, feedback from the sink device indicating packet arrival times of the packets at the sink device;
• determining, at the source device based at least on the feedback, an average time shift in the packet arrival times at the sink device, wherein the average time shift is relative to expected packet arrival times of the packets at the sink device;
• detecting, at the source device, that the average time shift exceeds a threshold;
• and
• in response to the detecting, adjusting, by the source device, a streaming time of the stream of packets to synchronize, within a predefined tolerance, the source device with the sink device.