Clock regulating method between playing devices, apparatus and system thereof

Abstract

The invention provides a clock regulating method between playing devices, an apparatus and a system thereof. The method comprises the following steps of receiving a clock adjustment instruction emitted by a second playing device, wherein the clock adjustment instruction carries correction time; determining whether current system time of a first playing device is consistent with the correction time; and if the current system time is inconsistent with the correction time, according to the clock adjustment instruction, setting the current system time of the first playing device to be the correction time so that clocks between the first playing device and the second playing device are synchronized. The playing devices in the invention carry out communication adjusting through built-in sending and receiving modules so that clock synchronization between the first playing device and the second playing device is guaranteed and a basic parameter is provided for sound synchronization. The method, the apparatus and the system are not influenced by network equipment, a network bandwidth and a network environment. A problem that a stereo sound field is leaning and drifting because of network adjusting is effectively avoided. And a good stereo audition feeling is brought for a user.

Description

technical field [0001] The invention relates to the field of communication technology, in particular to a clock adjustment method, device and system between playback devices. Background technique [0002] In the prior art, a smart multimedia system, as a kind of smart home, often consists of multiple smart multimedia devices. These smart multimedia devices can be synchronously controlled through the network to perform a certain operation at the same time, such as synchronously playing a certain song. Considering the media data transmission of each intelligent multimedia device (such as a playback device) as a media stream, the synchronous playback between multiple intelligent multimedia devices can be understood as inter-stream synchronization. [0003] In order to achieve a stereo effect, two playback devices are used to form a stereo speaker. At present, in order to achieve clock synchronization of two playback devices, network adjustment is adopted, that is, a master con...

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Problems solved by technology

[0005] In view of this, the purpose of the present invention is to provide a clock adjustment method, device and system between playback devices, aiming to solve the problem of network delay in the prior art due to the use of network adjustment, therefore, there will be As a result, the clocks of the two playback devices are not synchronized, which in turn causes the sound between the two playback devices to be out of sync, then there will be problems with sound field deviation and sound field drift

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