毕业论文摘要书写案例分析(2)

摘 要：应用小波变换估计传导语音的谐波噪声比（具体方法），研究了不同发声方式、发音及声带病变对传导语音谐波噪声比的影响，并与口腔语音的谐波噪声比进行了对比研究（具体对象），发现发不同元音时，传导语音谐波噪声比的变化范围是5bB，口腔语音谐波噪声比的变化范围为20dB；不同发声方式的传导语音谐波噪声比的变化范围可达18dB，口腔语音的变化范围为12dB（具体结果）。结果表明传导语音谐波噪声比能够更好地反映声带振动模式，是一种研究声带振动功能和模式及喉部疾病诊断的有效方法（具体结论）。

关键词：口腔语音；传导语音；谐波噪声比；小波变换

2）英文摘要案例：

THEME：Identification of vocal cords vibration functions and modes

Abstract: This paper studied the estimation of harmonic to noise ratio (HNR) in transmitted sound signals（具体对象）by wavelet transform（具体方法）. When normal and laryngeal pathological subjects phonate sustained vowels in breathy, falsetto, leakage and pressed modes in normal loudness, these HNRs in transmitted sound signals were estimted and compared with the HNR in human voice（过去时态）. It is pointed that for normal subjects in a variety of vowels, the 20 dB. For normal subject in a variety of phonation modes, the variation of HNR in transmitted sound signals exceeds 18 dB and in human voice signals in within 12 dB（具体结果）. The results indicate that the NHR in transmitted sound signals could more accurately image vocal cords vibration characteristics and could be an effective measurement for studying vocal cords vibration and clinical laryngeal disease diagnosis（具体结论）（现在时态）.

Keywords: human voice; transmitted sound; harmonic to noise ratio; wavelet transform 参见：百度文库：《论文摘要怎么写》

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