| 基于谱熵的语音检测 |
| |
| 引用本文： | 吴启晖,王金龙.基于谱熵的语音检测[J].电子与信息学报,2001,23(10):989-993. |
| |
| 作者姓名： | 吴启晖 王金龙 |
| |
| 作者单位： | 解放军理工大学通信工程学院移动通信教研室, |
| |
| 摘 要： | 根据离散余弦变换(DCT)特性和最大离散熵定理,该文提出利用短时语音余弦变换谱的谱熵进行语音信号检测(Voice activity detection)。在强噪声环境下,传统的能量,过零率,相关等检测方法将会失效,而谱熵法则具有稳健的抗噪特性。计算机模拟显示这是一种比较好的抗噪语音检测方案.
|
| 关 键 词： | 语音检测 DCT变换 谱熵 抗噪 |
| 收稿时间： | 1999-10-19 |
| 修稿时间： | 1999年10月19 |
VOICE DETECTION BASED ON SPECTRAL ENTROPY |
| |
| Wu Qihui,Wang Jinlong.VOICE DETECTION BASED ON SPECTRAL ENTROPY[J].Journal of Electronics & Information Technology,2001,23(10):989-993. |
| |
| Authors: | Wu Qihui Wang Jinlong |
| |
| Affiliation: | Teaching Section of Radio Communication ICE Nanjing 210016 China |
| |
| Abstract: | An approach is introduced to voice detection that differs from normal approach via energy, correlation and zerocrossing criteria. By measuring the gross shape of the short-term speech spectrum using spectral entropy to detect voice segment, it is shown that the spectral entropy can be used effectively even in heavy background noise. The simulation results show that the approach via spectral entropy has good performance for anti-noice. |
| |
| Keywords: | Voice detection DCT transformation Spectral entropy Robustness |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
|
