| 引用本文： |
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都格草,才让卓玛,南措吉.基于谱减法的藏语语音减噪研究[J].广西科学院学报,2018,34(1):78-82. [点击复制]
- DOU Gecao,CAIRANG Zhuoma,NAN Cuoji.Study on Noise Reduction of Tibetan Speech based on Spectral Subtraction[J].Journal of Guangxi Academy of Sciences,2018,34(1):78-82. [点击复制]
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| 摘要: |
| 语音信息的采集过程中难免会有各种噪声的干扰,噪声降低了语音的可懂度及清晰度,甚至严重影响语音处理的准确性和可靠性。谱减法是语音减噪中最常用的方法,该方法基于人的感觉特性,对语音短时幅度谱进行估计,适用于受加性噪声污染的语音。本文通过统计分析谱减法的增益补偿因子和过减因子参数,研究基于谱减法的藏语语音减噪处理,并取得较为理想的实验结果。 |
| 关键词: 语音信号处理 藏语语音分析 谱减法 语音减噪 |
| DOI：10.13657/j.cnki.gxkxyxb.20180320.007 |
| 投稿时间：2017-11-23修订日期：2017-12-21 |
| 基金项目:国家自然科学基金项目(61262051,61163018),国家社科基金项目(16BYY167,15BYY132,14BYY132,13BYY141),教育部"春计划"(Z2016077)和青海省基础研究项目(2017-ZJ-767)资助。 |
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| Study on Noise Reduction of Tibetan Speech based on Spectral Subtraction |
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DOU Gecao, CAIRANG Zhuoma, NAN Cuoji
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| (Computer School of Qinghai Normal University, Xining, Qinghai, 810008, China) |
| Abstract: |
| In the process of the acquisition of speech information, there will inevitably be all kinds of noise interference. The noise reduces the intelligibility and quality of speech and even seriously affects the accuracy of speech processing. Spectral subtraction is the most commonly used method for the noise reduction of speech, which estimates the short-time amplitude spectrum of the speech based on the characteristics of human consciousness. It is suitable for speech that is contaminated by additive noise pollution. In this paper, statistical analysis of spectral subtraction gain compensation factor and reduction factor parameter is used to study the noise reduction processing of Tibetan language speech based on spectral subtraction, and an ideal experimental result is obtained. |
| Key words: speech signal processing Tibetan speech analysis spectral subtraction speech noise reduction |
