| 引用本文: | 李波,王成友,杨聪,等.基于语音频谱包络抽取的MFCC算法.[J].国防科技大学学报,2004,26(4):42-45.[点击复制] |
| LI Bo,WANG Chengyou,YANG Cong,et al.An Algorithm for MFCC Based on Speech Spectrum Harmonic Samples Extraction[J].Journal of National University of Defense Technology,2004,26(4):42-45[点击复制] |
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| 基于语音频谱包络抽取的MFCC算法 |
| 李波1,2, 王成友1, 杨聪1, 蔡宣平1, 张尔扬1 |
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(1.国防科技大学 电子科学与工程学院，湖南 长沙 410073;2.空军工程大学电讯工程学院，陕西 西安 710077)
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| 摘要: |
| 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；提出一种新的有效的求解MFCC的算法，先对频谱通过谐波抽取得到阶梯谱包络，再对阶梯谱包络进行Mel尺度变换，最后通过余弦变换求得MFCC参数。该方法实现简单，运算结果准确。 |
| 关键词: 语音处理 MFCC 语音识别 说话人识别 语音转换 |
| DOI： |
| 投稿日期：2004-02-25 |
| 基金项目: |
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| An Algorithm for MFCC Based on Speech Spectrum Harmonic Samples Extraction |
| LI Bo1,2, WANG Chengyou1, YANG Cong1, CAI Xuanping1, ZHANG Eryang1 |
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(1.College of Electronic Science and Engineering，National Univ. of Defense Technology, Changsha 410073, China;2.The Telecommunication Engineering Institute, Air Force Engineering Univ., Xi'an 710077, China)
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| Abstract: |
| MFCC can express speech spectrum more accurately at low frequency, so MFCC is a good method to express the spectral envelope in voice conversion; A new and efficient algorithm for MFCC is proposed. At first, the staircase envelope is obtained through harmonic extraction, then the staircase envelope is transformed by Mel frequency scale, at last the MFCC coefficients are extracted by cosine transformation. The algorithm can be realized easily, and the result is good. |
| Keywords: speech processing MFCC speech recognition speaker recognition voice conversion |
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