Method for achieving precise and synchronous playing function of wireless Bluetooth earphone

Abstract

The invention provides a method for achieving a precise and synchronous playing function of a wireless Bluetooth earphone. The method includes the following steps that a smart device emits an audio signal to a left Bluetooth earphone body, the left Bluetooth earphone body transmits the audio signal to a right Bluetooth earphone body, and the left Bluetooth earphone body and the right Bluetooth earphone body conduct Bluetooth clock synchronization; at a certain clock moment of a Bluetooth clock, the left Bluetooth earphone body and the right Bluetooth earphone body trigger respective DMA controllers simultaneously for the first time, and the DMA controllers of the left and right Bluetooth earphone bodies access the audio signal at the same time; the left and right Bluetooth earphone bodiesrepeatedly trigger the DMA controllers every a certain period of time under the audio clock respectively, and the DMA controllers of the left and right Bluetooth earphone bodies are adjusted to play the audio signal simultaneously and send the audio signal to respective playing devices. According to the method, firstly, clock synchronization is conducted on the left and right Bluetooth earphone bodies, and on the basis of the clock synchronization, access of data is achieved through respective DMA controllers to achieve the precise and synchronous playing function.

Description

Technical field [0001] The present invention relates to the technical field of wireless communication, and particularly relates to a method for realizing precise synchronous playback of a wireless Bluetooth headset. Background technique [0002] With the progress of society and the improvement of people's living standards, headphones have become an indispensable daily necessities for people. Traditional wired headsets are connected to smart devices (such as smart phones, laptops, tablet computers, etc.) through wires, which restrict the wearer's movements, especially in sports occasions. At the same time, the twisting and pulling of the headphone cord and the stethoscope effect all affect the user experience. Ordinary Bluetooth headset cancels the connection between the headset and the smart device, but there is still a connection between the left and right ears. True wireless stereo headsets came into being. [0003] An implementation of the existing true wireless earphones is ...

AI Technical Summary

Problems solved by technology

In the existing true wireless headset system, it is often difficult to achieve better synchronization between the left and right ears

For example, when playing music, it is difficult to play the music in the left and right ears at the same time, which greatly affects the music quality

During a voice call, it is difficult to accurately play the voices of the left and right ears at the same time

Images