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老电影音频背景噪声修复算法

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我国电影已经有一个多世纪的历史了,有些老电影音频的感光膜在岁月的腐蚀和人为的损伤下,会出现霉斑、划痕等痕迹,在还音过程中会产生背景噪音,从而影响听感.对此,提出一种基于SE-GAN的音频修复算法,能有效地解决老电影的音频质量问题.该算法通过引入矢量量化层来提高信号发生器的性能,引入频域损耗,使得去噪后的语音信号具有更接近于纯净音频的频率特性.试验证明,该算法能有效地改善老电影的去噪性能,并使其各项客观评价指标得到改善.
Restoration Algorithms for Audio Background Noise in Old Movies
Chinese movies have a history of over a century.Some old movie audio films have sensitive films that,under the corrosion of time and human damage,may show signs such as mold and scratches.During the sound reproduction process,background noise is produced,which affects the listening experience.Based on this,this article proposes an audio restoration algorithm based on SE-GAN,which can effectively solve the sound quality problem of old movies.This algorithm improves the performance of the signal generator by introducing a vector quantization layer,and introduces frequency domain loss to make the denoised speech signal have frequency characteristics closer to pure audio.Experiments have shown that this algorithm can effectively improve the denoising performance of old movies and improve their various objective evaluation indicators.

old moviesaudio repairaudio noise reduction

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爱音视软件科技有限公司,北京 100012

老电影 音频修复 音频降噪

2024

电声技术
电视电声研究所(中国电子科技集团公司第三研究所)

电声技术

影响因子:0.259
ISSN:1002-8684
年,卷(期):2024.48(1)
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