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CN-121985407-A - Control method, device and system of multi-loudspeaker box system

CN121985407ACN 121985407 ACN121985407 ACN 121985407ACN-121985407-A

Abstract

The invention discloses a control method, a device and a system of a multi-loudspeaker box system, and belongs to the technical field of wireless audio synchronization. The method is performed by a master sound box by generating and broadcasting a control signal containing audio control parameters and a unified target trigger time in response to user manipulation, and by a slave sound box by receiving the signal and synchronously performing parameter updating at the target trigger time. According to the invention, by introducing a delay trigger mechanism based on a unified time sequence reference, the problem of dyssynchrony of the multi-loudspeaker box audio parameters due to the difference of wireless transmission time delay is solved, and the listening consistency is remarkably improved. The invention also discloses a corresponding master sound box, a corresponding slave sound box and a multi-sound box system.

Inventors

  • FENG CHUN

Assignees

  • 深圳市富友昌科技股份有限公司

Dates

Publication Date
20260505
Application Date
20260407

Claims (10)

  1. 1. A method of controlling a multi-speaker system, the multi-speaker system including a master speaker and at least one slave speaker, the method comprising: The steps performed by the main soundbox: Generating an audio control signal, wherein the audio control signal comprises an audio control parameter and a target trigger moment; Broadcasting the audio control signal to the at least one slave speaker; The steps performed by the master speaker and the slave speaker together: And synchronously applying the audio control parameters to drive the respective sounding modules at the target trigger time.
  2. 2. The method of claim 1, further comprising, prior to generating the audio control signal: and a synchronous time sequence reference is established between the master sound box and the slave sound box.
  3. 3. The method of claim 2, wherein the establishing a synchronized timing reference comprises: the master sound box periodically broadcasts a time sequence synchronous signal, and the slave sound box calibrates a local clock according to the time sequence synchronous signal.
  4. 4. The method of claim 1, wherein after the main soundbox broadcasts the audio control signal, further comprising: receiving the audio control signal broadcasted by the user; and resetting the execution state of the audio control parameter to a state to be triggered according to the received signal so as to ensure consistency with the execution logic of the slave loudspeaker box.
  5. 5. The method of claim 1, wherein the target trigger time is determined based on a signal generation time and a preset delay, the preset delay being no greater than 30ms.
  6. 6. The method of claim 1, wherein the slave speaker, upon receiving an audio control signal broadcast by the master speaker, maintains the audio control signal in a to-be-triggered state if a current time is earlier than the target trigger time.
  7. 7. The method of claim 1, wherein the slave speaker, upon receiving the audio control signal broadcast by the master speaker, immediately triggers the audio control signal to drive the sound module if the current time reaches or is later than the target trigger time.
  8. 8. A main sound box comprising a processor and a memory, the memory storing a computer program, the processor implementing the method of any one of claims 1 to 5 when executing the computer program.
  9. 9. A slave sound box comprising a processor and a memory, the memory storing a computer program, the processor implementing the method of claim 6 or 7 when executing the computer program.
  10. 10. A multi-speaker system comprising a master speaker as claimed in claim 8 and at least one slave speaker as claimed in claim 9.

Description

Control method, device and system of multi-loudspeaker box system Technical Field The application relates to the technical field of wireless audio synchronization, in particular to a control method, a device and a system of a multi-sound box system, which are particularly suitable for the audio parameter cooperative control of the multi-sound box system. Background In the existing multi-sound box wireless system, even if a plurality of sound boxes can receive the same control signal, because of unavoidable time delay difference in wireless transmission, the effective moments of control parameters on the sound boxes are often inconsistent, and especially when the sound volume, the sound mixing, the tuning or the reverberation parameters are dynamically changed, the problem that the hearing feeling of the multi-sound boxes is asynchronous is easily caused. On the other hand, if the control command is issued in a unicast-by-unicast mode, not only is the communication load larger, but also the control delay is obviously increased along with the increase of the number of the sound boxes, and the requirement of low-delay synchronous control is difficult to meet. In addition, under the scene that the main equipment is used as a control source and participates in parameter execution, the problem that the parameter execution paths are inconsistent easily occurs between the main equipment and the auxiliary equipment, and the cooperative effect of the multiple sound boxes is further affected. Therefore, a new technical scheme is needed, and under the condition of wireless broadcasting, a plurality of sound boxes can synchronously update audio parameters within the time difference range which is difficult to be perceived by human ears, so that the cooperative control of consistent hearing of the plurality of sound boxes is realized. Disclosure of Invention The invention aims to overcome the defects of the prior art and provides a control scheme capable of effectively solving the difference of wireless transmission delay and realizing high-precision synchronous validation of audio parameters of a plurality of sound boxes. To achieve the above object, the present application provides a method for controlling a multi-speaker system, the multi-speaker system including a master speaker and at least one slave speaker, the method comprising: The steps performed by the main soundbox: Generating an audio control signal, wherein the audio control signal comprises an audio control parameter and a target trigger moment; Broadcasting the audio control signal to the at least one slave speaker; The steps performed by the master speaker and the slave speaker together: And synchronously applying the audio control parameters to drive the respective sounding modules at the target trigger time. In an embodiment, before generating the audio control signal, further comprising: and a synchronous time sequence reference is established between the master sound box and the slave sound box. In an embodiment, the establishing the synchronized timing reference includes: the master sound box periodically broadcasts a time sequence synchronous signal, and the slave sound box calibrates a local clock according to the time sequence synchronous signal. In an embodiment, after the main audio box broadcasts the audio control signal, the method further includes: receiving the audio control signal broadcasted by the user; and resetting the execution state of the audio control parameter to a state to be triggered according to the received signal so as to ensure consistency with the execution logic of the slave loudspeaker box. In an embodiment, the target trigger time is determined based on a signal generation time and a preset delay, the preset delay being no greater than 30ms. In an embodiment, when the slave sound box receives the audio control signal broadcast by the master sound box, the audio control signal is kept in a to-be-triggered state under the condition that the current moment is earlier than the target trigger moment. In an embodiment, when the slave sound box receives the audio control signal broadcast by the master sound box, the audio control signal is triggered immediately to drive the sounding module under the condition that the current moment reaches or is later than the target trigger moment. To achieve the above object, the present application further provides a main sound box, including a processor and a memory, the memory storing a computer program, the processor implementing the method when executing the computer program. In order to achieve the above object, the present application further provides a slave sound box, which comprises a processor and a memory, wherein the memory stores a computer program, and the processor executes the computer program to implement the method. In order to achieve the above object, the present application further provides a multi-speaker system, which includes the master speaker and at least one slav