Frequency adjustment method and apparatus, bluetooth earbuds, storage medium, and program product

A frequency adjustment apparatus, applied to a slave earbud of Bluetooth earbuds, the Bluetooth earbuds comprising a master earbud and the slave earbud, the frequency adjustment apparatus comprising:

• a receiving module, configured to receive signaling packets periodically transmitted by the master earbud at intervals of a first time period, each signaling packet comprising a target sample point identifier and a Bluetooth clock of the master earbud corresponding to the target sample point identifier;
• an acquisition module, configured to acquire a Bluetooth clock of the slave earbud corresponding to the target sample point identifier according to the target sample point identifier;
• a calculation module, configured to calculate a difference between the Bluetooth clock of the master earbud and the Bluetooth clock of the slave earbud as a first phase difference;
• a first adjustment module, configured to perform rapid phase compensation processing on the clock frequency of the slave earbud according to the first phase difference when the first phase difference satisfies a phase compensation condition, the phase compensation condition comprising that the first phase difference is greater than or equal to a preset threshold value;
• a determination module, configured to determine a second phase difference between the Bluetooth clock of the slave earbud and the Bluetooth clock of the master earbud after the clock frequency of the slave earbud is adjusted;
• and
• a second adjustment module, configured to re-adjust the clock frequency of the slave earbud according to the first phase difference and the second phase difference.