Data augmentation method and device, electronic equipment and storage medium

The invention provides a data augmentation method and device, electronic equipment and a computer readable storage medium, and relates to the technical field of intelligent voice. The method comprises the following steps: acquiring an unmarked original text, and performing phoneme prediction processing on the unmarked original text to generate a corresponding predicted phoneme sequence; performing text prediction processing on the prediction phoneme sequence to obtain a corresponding prediction text sequence; determining a comparison result of the predicted text sequence and the unmarked original text, and determining an augmented sample text according to the unmarked original text under the condition that the comparison result represents that the data is consistent; obtaining a predicted phoneme label matched with the augmented sample text from the predicted phoneme sequence; generating augmented sample data based on the augmented sample text and the predicted phoneme tag; the augmented sample data is used f