基于子空间语音增强方法的研究_医学论文--《医药卫生护理学》--互联网考试中心 关键词】 子空间； 语音增强； 语谱图 [gap=518]key words sub-space enhancement；speech enhancement；speech spectrum
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nonstationarity of speech spectrum 语言频谱之非稳态性
long term speech spectrum 长时间言语会话频谱
speech spectrum characteristics 语谱特性
spectrum of speech 言语声谱
Spectrum analysis of speech 语音频谱分析
This modification algorithm not only smoothes the speech spectrum, but also avoid the problem of synthesized speech quality degrading which is caused by traditional algorithm.
此算法能够较好的进行语音频谱平滑并且在一定程度上避免了传统算法使合成语音质量有较大下降的问题。
参考来源 - 汉语TTS中的韵律建模与合成方法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
MFCC can express speech spectrum more accurately at low frequency, so MFCC is a good method to express the spectral envelope in voice conversion;
MFCC可以更加准确地表示语音低频处的频谱包络，在语音转换中是一种很好的频谱包络表示方法；
This paper presents a channel adaptation method named spectral adjusting (SA) normalizes the distorted speech spectrum with a piecewise linear normalization function.
该文提出了一种新的信道自适应方法——频谱调整法。
This paper studies the speech enhancement technology, and proposes an improved spectral subtraction method based on the auditory characteristics and the speech spectrum characteristics.
主要以谱减法为基础，结合人耳的听觉特性从而减少残留“音乐噪声”的影响；结合语音的语谱在时-频域分布特性从而提高增强后语音的听觉质量。
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