| 有效提取耳语音共振峰的改进方法 |
| |
| 引用本文： | 吕岗,赵鹤鸣,刘建新,龚呈卉. 有效提取耳语音共振峰的改进方法[J]. 计算机工程与应用, 2009, 45(19): 134-136. DOI: 10.3778/j.issn.1002-8331.2009.19.041 |
| |
| 作者姓名： | 吕岗 赵鹤鸣 刘建新 龚呈卉 |
| |
| 作者单位： | 苏州大学 电子信息学院，江苏 苏州 215021 |
| |
| 基金项目： | 国家自然科学基金，江苏省高校自然科学研究计划项目 |
| |
| 摘 要： | 耳语音是噪声源激励，与正常音相比，其共振峰位置发生了偏移，带宽增宽。故采用传统的线性预测法提取耳语音共振峰时存在虚假峰问题。通过分析功率谱，提出了一种改进算法。根据极点功率不变的原则，利用极点交互因子修正共振峰的带宽，从而准确地提取出耳语音的共振峰。对汉语普通话单元音音素仿真实验的结果证明了该算法的有效性。
|
| 关 键 词： | 耳语音 共振峰 线性预测编码 极点交互 |
| 收稿时间： | 2008-04-25 |
| 修稿时间： | 2008-7-7 |
Improved method for effectively extracting whisper speech formant |
| |
| LV Gang,ZHAO He-ming,LIU Jian-xin,GONG Cheng-hui. Improved method for effectively extracting whisper speech formant[J]. Computer Engineering and Applications, 2009, 45(19): 134-136. DOI: 10.3778/j.issn.1002-8331.2009.19.041 |
| |
| Authors: | LV Gang ZHAO He-ming LIU Jian-xin GONG Cheng-hui |
| |
| Affiliation: | School of Electronics and Information Engineering，Soochow University，Suzhou，Jiangsu 215021，China |
| |
| Abstract: | Whisper is stirred by noise.Comparing with normal speech,the formant of whisper is shifted and the bandwidth is broadened,and that will bring up the problem of spurious peaks when using the tranditional conventional liner prediction coding for formant extraction.By analyzing power spectrum,an improved approach has been proposed.Based on the rule that the pole power is not change,the algorithm modifies the whisper formant bandwidths using pole interaction factor,and extracts formants exactly.Experimental res... |
| |
| Keywords: | whispered speech formant liner prediction coding pole interaction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《计算机工程与应用》浏览原始摘要信息 |
|
点击此处可从《计算机工程与应用》下载免费的PDF全文 |
