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增强后语音频谱图问题 #46

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17551023349 opened this issue Aug 29, 2019 · 2 comments
Open

增强后语音频谱图问题 #46

17551023349 opened this issue Aug 29, 2019 · 2 comments

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@17551023349
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你好,我用了thchs30中的一万条噪声数据训练出了一个模型。但是我看了测试集的增强结果,发现语谱图中某些固定的频率上的能量一直不变化,反应在图上就会有细条纹出现,而且语音听起来存在失真现象。下面三幅图分别是带噪声语音语谱图(主要是一些低频噪声),原始无噪声语音语谱图和增强后的语谱图。
带噪
image
无噪
image
增强
image

和原始的语谱图比起来会多一些奇怪的频率能量。
但是我用你们的训练好的matlab工具进行降噪以后就没有这样的现象。下图是我用你们团队提供的matlab工具进行增强的语谱图,降噪效果很好,并且失真现象也减少了很多。
image

请问是我训练数据太少的缘故吗,我该怎么去提升增强后的语音质量能。
谢谢

@qiuqiangkong
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qiuqiangkong commented Aug 30, 2019 via email

@yongxuUSTC
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yongxuUSTC commented Aug 30, 2019 via email

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