| DSP语音控制器中MFCC参数的定点快速算法 |
| |
| 引用本文： | 何强 蒙山. DSP语音控制器中MFCC参数的定点快速算法[J]. 五邑大学学报(自然科学版), 1999, 13(4): 6-10 |
| |
| 作者姓名： | 何强 蒙山 |
| |
| 作者单位： | 北京航空航天大学电子工程系!北京，100083，五邑大学信息科学研究所!广东江门，529020，五邑大学信息科学研究所!广东江门，529020 |
| |
| 基金项目： | 广东省自然科学基金!960631 |
| |
| 摘 要： | 本文介绍了一个基于定点数字信号处理器ＡＤＳＰ２１８１的语音控制器，着重讨论了其语音特征参数计算方法。
|
| 关 键 词： | 语音识别 MFCC DSP 语音控制器 定点算法 |
A Fast Fixed-Point Scheme for MFCC in a DSP Speech Controller |
| |
| He Qiang,Meng Shan,ZHANG You-wei. A Fast Fixed-Point Scheme for MFCC in a DSP Speech Controller[J]. Journal of Wuyi University(Natural Science Edition), 1999, 13(4): 6-10 |
| |
| Authors: | He Qiang Meng Shan ZHANG You-wei |
| |
| Abstract: | Introduced in this paper is a speech controller based on fixed-point DSP ADSP2181,which adopts mel-scale frequency cepstrum coefficient as principal speech recogniti0n parameter.We discuss its standard floating-point scheme and then, taking into account the features of its algorithm and the structure of the fixed-point DSP, put forward an optimized, fast fixed-point scheme. The testing shows that the fixed-point scheme consumes much less time than the floatingpoint scheme. Twelve MFCC coefficients of a frame of 256 point samples (32ms) cost onIy 1.35ms.Compared with 12.20ms for the floating-point scheme, the load of the DSP is considerably reduced. |
| |
| Keywords: | Speech recognition MFCC DSP fixed-point |
| 本文献已被 CNKI 维普 等数据库收录！ |
