Audio playback methods, systems, electronic devices, and storage media

By dynamically matching the working mode and clock source of the audio playback system, the problem of inconsistent sound quality when switching audio sources using the I2S bus protocol is solved, achieving seamless and pop-free audio switching and improving the stability and sound quality of audio playback.

CN122131999APending Publication Date: 2026-06-02LINKPLAY TECHNOLOGY INC NANJING
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
LINKPLAY TECHNOLOGY INC NANJING
Filing Date
2026-01-05
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing audio playback systems based on the I2S bus protocol struggle to maintain consistent sound quality when switching audio sources, often resulting in popping sounds, phase jitter, stuttering, and intermittent playback, which negatively impacts the high-resolution audio experience.

Method used

By dynamically determining the target operating mode of the audio playback system, matching the target master clock source and the I2S bus master-slave relationship, configuring the asynchronous buffer resampling module, and performing timing continuity maintenance and path switching, seamless switching of audio data streams between different clock domains is ensured.

Benefits of technology

It achieves pop-free switching between multiple audio sources, improves the timing consistency and stability of audio, ensures that high-resolution audio is driven by the purest master clock, and improves the reliability and sound quality resolution of the system.

✦ Generated by Eureka AI based on patent content.

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Abstract

This disclosure provides an audio playback method, system, electronic device, and storage medium. The method is applied to an audio playback system that transmits audio data streams via the I2S bus protocol. The system includes a main processor, a USB audio processor, an I2S multiplexer, an asynchronous buffer resampling module, and a digital-to-analog converter. The method includes: the main processor responding to changes in the input audio source, determining the target operating mode of the audio playback system based on the target audio source indicated by the change; dynamically determining the system's target master clock source and the I2S bus master-slave relationship, and configuring the asynchronous buffer resampling module with a ready state corresponding to the target operating mode; the main processor controlling the clock source to switch to the target master clock source, and the asynchronous buffer resampling module maintaining timing continuity; the main processor controlling the I2S multiplexer to switch according to the target transmission path, and the digital-to-analog converter outputting an analog audio signal for audio playback. This disclosure can provide a better audio listening experience.
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