DTW stands for Dynamic Time Warping. It is the algorithm about how computer understands human voices. You can download the DTW Program written by Woohyung Chun

DTW stands for Dynamic Time Warping. It is the algorithm about how computer understands human voices. You can download the DTW Program written by Woohyung Chun

DTW stands for Dynamic Time Warping. It is the algorithm about how computer understands human voices. You can download the DTW Program written by Woohyung Chun

于市售 STM32 开发板上实现特定人语音识别处理项目。识别流程是：预滤波、ADC、分帧、端点检测、预加重、加窗、特征提取、特征匹配。端点检测(VAD)采用短时幅度和短时过零率相结合。检测出有效语音后，根据人耳听觉感知特性,计算每帧语音的 Mel 频率倒谱系数(MFCC)。然后采用动态时间弯折(DTW)算法与特征模板相匹配,最终输出识别结果。先用Matlab对上述算法进行仿真，经数次试验求得算法内所需各系数的最优值。而后将算法移植到 STM32 开发板上，移植过程中根据 STM32 上存储空间相