Voice high frequency component reconstruction method, device and computer equipment

By combining traditional algorithms and neural networks, and utilizing the characteristics of consonant zero-crossing rate to introduce white noise and half-wave rectification, fine adjustment of high-frequency components is achieved, solving the problems of distortion in traditional algorithms and large number of neural network parameters, thus improving the quality and stability of speech reconstruction.

CN122417063APending Publication Date: 2026-07-17CCORE TECH CO LTD
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Patent Information

Application Number
CN202610358482.0
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In existing technologies, traditional algorithms can only restore the high-frequency components of vowels, resulting in distortion, and cannot reconstruct consonants, while neural network solutions have a large number of parameters and are difficult to implement on the edge.

Method used

A hybrid approach is adopted, which utilizes the consonant zero-crossing rate characteristics of traditional algorithms to introduce white noise and half-wave rectification, and combines neural networks to finely adjust high-frequency components, thereby constructing a model with fewer parameters.

Benefits of technology

It improves the quality and stability of high-frequency speech component reconstruction, has fewer model parameters, is easy to implement on the edge, has low latency, and meets the requirements of real-time signal processing.

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Abstract

本申请公开了一种语音高频分量重建方法、装置和计算机设备,属于语音带宽拓展技术领域。其包括:对每一音频段添加白噪音,得到初步重建语音;对初步重建语音中的每一音频段进行半波整流,得到初始重建语音;对初始重建语音进行特征提取处理,得到初始重建语音特征信息;将初始重建语音特征信息输入至预先训练的幅度谱掩蔽值生成模型,得到幅度谱掩蔽值;对幅度谱掩蔽值进行后处理,得到重建语音时域波形。本申请的技术方案,利用传统算法里的过零率引入白噪声,半波整流引入高频谐波,神经网络对传统算法构建的高频分量进行增益和分布调节,算力内存占用小,便于端侧落地,提高语音高频分量重建质量和稳定性。
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Citation Information

Patent Citations

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