Speech enhancement method and apparatus, electronic device, and computer-readable storage medium

An electronic device, comprising:

• one or more processors;
• and
• a memory, configured to store one or more programs,
• the one or more programs, when executed by the one or more processors, causing the one or more processors to perform:
• obtaining a clean speech sample;
• decomposing the clean speech sample to obtain a first sparse matrix and m base matrices, values in the first sparse matrix being all positive numbers, and m being a positive integer greater than 1;
• obtaining, according to the first sparse matrix and a weight matrix of a target neural network, state vectors of neurons in a visible layer of the target neural network;
• and updating the weight matrix, according to the state vectors of the neurons in the visible layer and the clean speech sample, to obtain a deep dictionary used for speech enhancement.