Frequency characteristics of foreign accented speech
Frequency characteristics of foreign accented speech
复制标题
外国口音语音的频率特征
DOI：
10.1109/icassp.1997.596139
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
J. Hansen
中科院分区：
文献类型：
--
作者：
L. Arslan;J. Hansen
本研究对外国口音的频率特征进行了研究。实验发现不同共振频率和频段在口音辨别能力上的相对意义。结果表明，第二共振峰和第三共振峰比其他共振频率更重要。对重音语音的滤波器组分析支持这一说法，其中1500-2500赫兹范围被显示为区分重音的最重要的频率范围。在此基础上，提出了一种新的频率尺度来代替常用的Mel尺度来提取语音信号中的倒谱系数。所提出的量表在口音分类和语言识别问题上有更好的表现。
In this study, the frequency characteristics of foreign accented speech is investigated. Experiments are conducted to discover the relative significance of different resonant frequencies and frequency bands in terms of their accent discrimination ability. It is shown that second and third formants are more important than other resonant frequencies. A filter bank analysis of accented speech supports this statement, where the 1500-2500 Hz range was shown to be the most significant frequency range in discriminating accented speech. Based on these results, a new frequency scale is proposed in place of the commonly used Mel-scale to extract the cepstrum coefficients from the speech signal. The proposed scale results in better performance for the problems of accent classification and language identification.