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Music synchronous playing method and system based on WIFI (Wireless Fidelity) protocol

A technology for synchronous playback and music, which is applied in the field of synchronization of multi-room music systems, and can solve problems such as poor effects

Inactive Publication Date: 2018-02-23
SHANGHAI WUKONG INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

According to actual calculations, the current timestamp-based scheme can provide an error of a few milliseconds or tens of milliseconds, especially for the synchronization effect of a multi-room system due to network collisions and congestion. unacceptable for suitors

Method used

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  • Music synchronous playing method and system based on WIFI (Wireless Fidelity) protocol
  • Music synchronous playing method and system based on WIFI (Wireless Fidelity) protocol
  • Music synchronous playing method and system based on WIFI (Wireless Fidelity) protocol

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Embodiment Construction

[0051] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0052] First, see figure 1 and figure 2 As shown, a music synchronous playback system based on the WIFI protocol of the present invention is mainly composed of at least one master audio device 11 and at least one slave audio device 12, and the master audio device 11 and the slave audio device 12 need to support the DLNA / UPNP standard protocol and 802.11 standard protocol, cooperate with a general wireless access point 13, realize that the master audio device 11 and the slave audio device 12 join the wireless network, and obtain the data in the wireless network. The wireless access point 13 can be a general wireless router, and the router does not need professional customization.

[0053] Among them, the main audio device 11 is used as a bridge, as a Digital Media Server (Digital Media Server, DMS for short) device of the present in...

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Abstract

The invention discloses a music synchronous playing method and system based on a WIFI (Wireless Fidelity) protocol. The music synchronous playing method comprises the following steps: acquiring a Beacon data packet carrying a synchronization timestamp transmitted by a wireless access point through master and slave audio equipment; extracting the synchronization timestamp from the received Beacon data packet, and synchronizing local clocks of the master and slave audio equipment into a lock of the synchronization timestamp; acquiring audio data through the master audio equipment, and adding playing timestamps to headers of each frame of audio data; and transmitting the audio data and the playing timestamps to the slave audio equipment, so that the master and slave audio equipment plays music at the playing timestamps. Through adoption of the music synchronous playing method and system, time synchronization of a multi-room system is realized, and a very good effect is achieved by means of an underlying protocol of a WIFI network through the timestamp in the Beacon data packet without increasing the network load or using a WIFI network clock synchronization protocol 802.11V.

Description

technical field [0001] The invention relates to the synchronization of a multi-room music system, in particular to a music synchronous playing method and playing system based on a WIFI protocol. Background technique [0002] With the development of human society and the progress of the times, people's pursuit of high-quality music has become a part of life, and wireless speakers are favored by people because they are simple and beautiful, and they get rid of the shackles of connecting wires and transmission cables. In the early days, Bluetooth speakers achieved rapid development due to their convenience, but Bluetooth technology encountered a bottleneck in the development of higher-end due to bandwidth limitations and restrictions on the inability to directly connect to the Internet. [0003] Speakers based on the WIFI protocol, because their transmission distance and network bandwidth far exceed Bluetooth, and support online cloud music and radio playback, thus removing the...

Claims

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Application Information

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IPC IPC(8): H04L12/28H04J3/06H04W84/12
CPCH04J3/0685H04L12/2805H04L12/2812H04L12/283H04W84/12
Inventor 徐金苟
Owner SHANGHAI WUKONG INFORMATION TECH
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