Speech speed adjustment method and apparatus, electronic device, and readable storage medium

An electronic device comprising:

• a memory and at least one processor,
• wherein the memory is configured to store computer program instructions;
• and
• the at least one processor is configured to execute the computer program instructions, causing the electronic device to perform a speech speed adjustment method, and the speech speed adjustment method comprises:
• acquiring a text to be synthesized;
• inputting the text to be synthesized to a speech synthesis model, and acquiring a spectrum corresponding to the text to be synthesized output by the speech synthesis model, wherein the speech synthesis model comprises an encoding network, an attention network and a decoding network, with the encoding network being used for converting the input text to be synthesized into an acoustic feature sequence, the attention network being used for outputting the attention vector, and the decoding network being used for outputting the spectrum corresponding to the text to be synthesized according to the attention vector being input, the acoustic feature sequence and a state transition control factor, the spectrum corresponding to the text to be synthesized comprises a plurality of first spectrums, and the state transition control factor is used for controlling a number of the plurality of first spectrums;
• and
• acquiring an audio of the spectrum corresponding to the text to be synthesized according to the spectrum corresponding to the text to be synthesized, wherein the audio has a specified speech speed;
• when the decoding network predicts the spectrum, performing a weighted calculation on the attention vector and the acoustic feature sequence to obtain a vector of a current step;
• acquiring an initial state quantity of the current step based on the vector of the current step;
• generating a mask according to the state transition control factor, and performing weighted fusion on the initial state quantity of the current step and a state quantity of the previous step according to the mask to obtain a state quantity of the current step.

A non-transitory computer-readable storage medium comprising:

• computer program instructions,
• wherein the computer program instructions, when executed by at least one processor of an electronic device, cause the electronic device to perform a speech speed adjustment method, and the speech speed adjustment method comprises:
• acquiring a text to be synthesized;
• inputting the text to be synthesized to a speech synthesis model, and acquiring a spectrum corresponding to the text to be synthesized output by the speech synthesis model, wherein the speech synthesis model comprises an encoding network, an attention network and a decoding network, with the encoding network being used for converting the input text to be synthesized into an acoustic feature sequence, the attention network being used for outputting the attention vector, and the decoding network being used for outputting the spectrum corresponding to the text to be synthesized according to the attention vector being input, the acoustic feature sequence and a state transition control factor, the spectrum corresponding to the text to be synthesized comprises a plurality of first spectrums, and the state transition control factor is used for controlling a number of the plurality of first spectrums;
• and
• acquiring an audio of the spectrum corresponding to the text to be synthesized according to the spectrum corresponding to the text to be synthesized, wherein the audio has a specified speech speed;
• when the decoding network predicts the spectrum, performing a weighted calculation on the attention vector and the acoustic feature sequence to obtain a vector of a current step;
• acquiring an initial state quantity of the current step based on the vector of the current step;
• generating a mask according to the state transition control factor, and performing weighted fusion on the initial state quantity of the current step and a state quantity of the previous step according to the mask to obtain a state quantity of the current step.