| 基于临界频带子波变换的语音增强 |
| |
| 引用本文： | 陶智,赵鹤鸣,吴迪.基于临界频带子波变换的语音增强[J].微电子学与计算机,2004,21(12):50-52. |
| |
| 作者姓名： | 陶智 赵鹤鸣 吴迪 |
| |
| 作者单位： | 1. 苏州大学物理学院,江苏,苏州,215006
2. 苏州大学电子信息学院,江苏,苏州,215006 |
| |
| 基金项目： | 国家自然科学基金资助项目(60172016)，苏州大学青年基金资助(Q3108404) |
| |
| 摘 要： | 提出了一种临界频带子波变换进行语音增强的新算法。该算法对传统的功率谱减算法进行改进，引入了与人耳听觉系统直接吻合的临界频带子波变换，使增强后的语音更符合人耳的听觉感知。对该算法进行客观和主观测试结果表明：与谱减法相比能更好地抑制残留噪声和背景噪声，增强后的语音具有更高的清晰度和可懂度。
|
| 关 键 词： | 临界频带子波变换 语音增强 听觉模型 谱减法 |
| 文章编号： | 1000-7180(2004)12-050-03 |
| 修稿时间： | 2004年6月22日 |
Speech Enhancement Based on Critical Band Wavelet Transform |
| |
| TAO Zhi,ZHAO He-ming,WU Di.Speech Enhancement Based on Critical Band Wavelet Transform[J].Microelectronics & Computer,2004,21(12):50-52. |
| |
| Authors: | TAO Zhi ZHAO He-ming WU Di |
| |
| Affiliation: | TAO Zhi1,ZHAO He-ming2,WU Di2 |
| |
| Abstract: | This paper gives the introduction of critical band wavelet transform in direct conformity to the hearing system, proposes a new algorithm. This new algorithm attempts at an improvement of the conventional speech enhancement algorithm, in hopes of enhancing the speech sounds better in keeping with the hearing system. Being tested both objectively and subjectively, this new algorithm, compared with the spectral subtraction algorithm, can effectively reduce the residual noise and background noise, thus achieving more clearness and intelligibility. |
| |
| Keywords: | Critical band wavelet transform Speech enhancement Auditory model Spectral subtraction |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
