Intelligent switching method of intelligent watch call audio processing unit based on I2S

The invention relates to the technical field of data processing, and provides an I2S-based smart watch call audio processing unit intelligent switching method, which comprises the following steps: acquiring monitoring data when a smart watch is in a call; determining a behavior power consumption identification factor per second according to the variation between the monitoring data of different time points in the characteristic observation time window taken per second; obtaining a call discrimination factor per second according to the characteristic value of each frame of audio data divided per second and the behavior power consumption identification factor per second; determining a call decision index of each second based on the call discrimination factor of each second and the element values in the audio feature matrix of each second; and the audio processing unit of the smart watch realizes switching of different modes according to the call decision index per second. According to the invention, switching o