Wlan player and wlan system for synchronizing playing speed and method thereof

A WLAN playing system for synchronizing playing speed, comprising:

• a first WLAN player;
• and
• a second WLAN player, synchronously playing a same medium together with the first WLAN player,
• wherein the second WLAN player adjusts a speed that the second WLAN player plays the medium according to a first playing-progress value and a first clock value of the first WLAN player, so as to synchronously play the medium together with the first WLAN player,
• wherein the first playing-progress value is a progress that the first WLAN player plays the medium, and the first clock value is a self-WLAN-clock value of the first WLAN player,
• wherein the second WLAN player has a second playing-progress value and a second clock value, the second playing-progress value is a progress that the second WLAN player plays the medium, and the second clock value is a self-WLAN-clock value of the second WLAN player,
• wherein the second WLAN player is configured to:
• calculate a progress difference between the second playing-progress value and the first playing-progress value;
• calculate a time difference between the second clock value and the first clock value;
• calculate a specific progress difference according to the progress difference and the time difference;
• and
• adjust the speed that the second WLAN player plays the medium according to the specific progress difference.

A method for synchronizing playing speed, adapted to a WLAN playing system comprising a plurality of WLAN players, comprising:

• sending a first playing-progress value and a first clock value of a first WLAN player by the first WLAN player in the plurality of WLAN players, wherein the other WLAN players synchronously play a same medium together with the first WLAN player;
• and
• adjusting a speed that the other WLAN players play the medium by the other WLAN players according to the first playing-progress value and the first clock value of the first WLAN player, so as to synchronously play the medium together with the first WLAN player,
• wherein the first playing-progress value is a progress that the first WLAN player plays the medium, and the first clock value is a self-WLAN-clock value of the first WLAN player,
• wherein the other WLAN players respectively have a second playing-progress value and a second clock value, the second playing-progress value is a progress that the other WLAN players respectively play the medium, and the second clock value is an individual WLAN clock value of the other WLAN players,
• wherein the step of adjusting the speed that the other WLAN players play the medium by the other WLAN players according to the first playing-progress value and the first clock value of the first WLAN player comprises:
• respectively calculating a progress difference between the second playing-progress value and the first playing-progress value by the other WLAN players;
• respectively calculating a time difference between the second clock value and the first clock value by the other WLAN players;
• respectively calculating a specific progress difference by the other WLAN players according to the progress difference and the time difference;
• and
• respectively adjusting the speed that the other WLAN players respectively play the medium by the other WLAN players according to the specific progress difference.