METHOD AND SYSTEM FOR AUTOMATICALLY SWITCHING CONTEXTUAL MODE BASED ON AMBIENT NOISE MAGNITUDE

摘要

The present invention comprises: obtaining external acoustic signal data and low-frequency signal data; processing the external acoustic signal data to eliminate medium-high frequency background noise and obtain preliminary processed data, processing the preliminary processed data and the low-frequency signal to eliminate low-frequency noise and obtain user call sound data, and obtaining complete background noise data according to the user call sound data; and switching contextual mode according to the obtained complete background noise data. The effect of the contextual background can be automatically switched based on the background noise.