Audio data processing method and apparatus, device, and medium

A computer device, comprising a memory and a processor,

• the memory being connected to the processor, the memory storing a computer program that, when executed by the processor, causes the computer device to perform an audio data processing method including:
• acquiring recorded audio, wherein the recorded audio includes a background reference audio component, a speech audio component, and an environmental noise component;
• acquiring an audio fingerprint corresponding to the recorded audio, further comprising:
• dividing the recorded audio into M recorded data frames, and performing frequency domain transformation on each of the M recorded data frames to obtain corresponding power spectrum data;
• constructing sub-fingerprint information corresponding to each of the M recorded data frames according to its corresponding power spectrum data;
• and
• combining sub-fingerprint information respectively corresponding to the M recorded data frames to obtain the audio fingerprint corresponding to the recorded audio;
• determining original accompaniment audio matching the background reference audio component from an audio database by querying the audio database using the audio fingerprint;
• acquiring extracting candidate speech audio by subtracting the original accompaniment audio from the recorded audio;
• extracting the background reference audio component from the recorded audio by subtracting the candidate speech from the recorded audio;
• performing environmental noise reduction on the candidate speech audio to obtain noise-reduced speech audio corresponding to the candidate speech audio;
• and
• combining the noise-reduced speech audio with the background reference audio component to obtain noise-reduced recorded audio.

A non-transitory computer-readable storage medium, storing a computer program therein, the computer program being adapted to be loaded and executed by a processor of a computer device and causing the computer device to perform an audio data processing method including:

• acquiring recorded audio, wherein the recorded audio includes a background reference audio component, a speech audio component, and an environmental noise component;
• acquiring an audio fingerprint corresponding to the recorded audio, further comprising:
• dividing the recorded audio into M recorded data frames, and performing frequency domain transformation on each of the M recorded data frames to obtain corresponding power spectrum data;
• constructing sub-fingerprint information corresponding to each of the M recorded data frames according to its corresponding power spectrum data;
• and
• combining sub-fingerprint information respectively corresponding to the M recorded data frames to obtain the audio fingerprint corresponding to the recorded audio;
• determining original accompaniment audio matching the background reference audio component from an audio database by querying the audio database using the audio fingerprint;
• acquiring candidate speech audio by subtracting the original accompaniment audio from the recorded audio;
• extracting the background reference audio component from the recorded audio by subtracting the candidate speech from the recorded audio;
• performing environmental noise reduction on the candidate speech audio to obtain noise-reduced speech audio corresponding to the candidate speech audio;
• and
• combining the noise-reduced speech audio with the background reference audio component to obtain noise-reduced recorded audio.