Identity recognition method and system and storage medium

The embodiment of the invention discloses an identity recognition method and system and a storage medium. The method comprises the following steps: acquiring audio data of a user; preprocessing the audio data; performing voiceprint recognition on the preprocessed audio data by using a voiceprint recognition model to obtain voiceprint information of the user; comparing the obtained voiceprint information with user registration voiceprint information pre-stored in a voiceprint database to obtain a recognition result of the user identity, the voiceprint recognition model being trained by the following method: acquiring an audio training sample, the audio training sample being an audio file marked with a speaker ID; carrying out pre-processing on the audio training sample; performing noise expansion processing on the pre-processed audio training sample; and training the model by using the expanded audio training sample to obtain a voiceprint recognition model. According to the identity recognition method, the voi