| 主权项 |
1. An audio playback device comprising:
a communication component adapted to connect the audio playback device to a slave device via a wireless connection; an audio output component adapted to output audio; and a controller module configured to interface with the communication component and the audio output component, and further configured to: send, via the wireless connection at a first system time of the audio playback device, a network latency request to the slave device, the network latency request including the first system time of the audio playback device, receive, via the wireless connection at a second system time of the audio playback device, a response to the network latency request from the slave device, calculate a one-way network latency time value for the slave device based at least in part on a difference between the first system time and the second system time, send the one-way network latency time value to the slave device for calculation of a system clock offset value, establish an audio playback session with the slave device via the wireless connection, the audio playback session using a data socket of the slave device, send, using the audio playback session, at least a portion of an audio file to the slave device and a playback timing instruction indicating a current system time of the audio playback device, the audio file for playback on the slave device according to the playback timing instruction and the system clock offset value, and initiate playback of the audio file from the audio output component. |
