SPEECH SYNCHRONIZATION METHOD AND DEVICE

摘要

Disclosed are a speech synchronization method and device. The method comprises: using a sound track indicating signal in an audio I2S bus built in an integrated circuit as a clock synchronization signal; sampling a speech frame signal acquired in a physical layer to get a frame interruption signal, and generating a first interruption signal according to the frame interruption signal and a preset parameter; counting the period of the clock synchronization signal in accordance with preset counting rules by means of two counters, respectively; when a count number of the first counter is a second preset number, generating a second interruption signal and recording a current first count number of the second counter, and according to the difference between the first count number and a second count number as well as a preset threshold, determining a data length of a speech sample which is transferred by means of direct memory access (DMA).