The embodiment of the invention provides an audio
data processing method and device,
electronic equipment and a storage medium, and the method comprises the steps: obtaining Mel spectrum data corresponding to initial audio data,
processing the Mel spectrum data through a
frequency band extension module, and generating enhanced Mel spectrum data, the high-frequency feature prediction module is used for predicting corresponding high-frequency features according to low-frequency features of the Mel-spectrum data so as to generate enhanced Mel-spectrum data with the low-frequency features and the high-frequency features; and
processing the enhanced Mel spectrum data based on an audio reduction module to obtain optimized audio data, converting initial audio data into Mel spectrum data, and expanding the high-frequency characteristics of the Mel spectrum data by using a
frequency band expansion module comprising a residual denoising
diffusion model to form enhanced Mel spectrum data comprising the high-frequency characteristics, and based on the enhanced Mel spectrum data, reduction is carried out to generate optimized audio data with higher audio resolution, so that the listening feeling of a user is improved.