3paper3

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 上存储空间相对较小、计算能力也相对较弱的实际情况，对算法进行优化。最终完成于 STM32 微处理器上的特定人语音识别系统。(Implement speech recognition processing project in commercially available STM32 development board. Identification is the process: pre-filter, ADC, framing, endpoint detection, pre-emphasis, windowing, feature extraction, feature matching. Endpoint detection (VAD) short-time amplitude and short-term zero rate combined. After detecting an effective voice, according to the characteristics of human auditory perception, calculated for each frame of speech Mel Frequency Cepstral Coefficients (MFCC). Then dynamic time warping (DTW) algorithm and feature template matches the final output recognition result. First with Matlab simulation algorithm described above, after several trials to get the optimal value of each coefficient within the desired algorithm. The algorithm will migrate to STM32 development board, the porting process according to the STM32 relatively small storage space, computing power is relatively weak situation of the optimization algorithm. Finally completed on the STM32 micr)

光电式编码器程序,此程序可实现光电式编码器的位置读取(Photoelectric encoder program, which can read the position of photoelectric encoder)

c8051f单片机汇编语言大全,包括C51和ASM及扩展资料(C8051F ASM reference design)

说明：  STM32外扩4*4矩阵键盘，包含原理图及源码。(STM32 extends 4*4 matrix keyboard, including schematic diagram and source code.)

LPC1788FBD208的protel99SE库（原理图库）文件(the LPC1788FBD208 s Protel99 lib file)

通过STM32处理，对敦泰（FT）触摸IC和汇顶(Goodix)触摸IC在1602的显示屏上显示出坐标，想触哪里 就会显示出具体的坐标出来，应用简单，移植方便灵活。可以移植到WINCE,ARM,STM32，8051单片机中。(The STM32, Duntai (FT) of touch IC and the Department of the top Goodix touch IC in 1602 display display coordinates, to touch where it will show the coordinates of specific, simple application, transplantation is convenient and flexible, can be transplanted to wince, arm, STM328051 microcontroller.)

STC15F104W单片机虚拟串口，并且带有18B20测温的功能，可与MCU或上位机进行通讯，波特率可以在程序中设置，带有队列，工作稳定(STC15F104W microcontroller virtual serial port, and with 18B20 temperature function can be used with MCU or PC communication, baud rate can be set in the program, with a queue, stable)

STM32项目实战之FatFS文件系统例程（SD卡、Flash和U盘）功能实现代码,对于初学者来说，是有非常的帮助效果的(STM32 project combat the FatFS file system routines (SD card, Flash and U disk) function implementation code, for beginners, it is very help effect)

一款双口ram芯片程序加电路加资料·········(odt7026···············)

本设计是以单片机为控制核心，通过液晶实时显示时钟，并通过LM35D传感器测量温度，将温度值实时显示在液晶上。(The design is based on microcontroller core, real-time via the LCD display clock, and through LM35D sensors measure temperature, the temperature values ​ ​ displayed in real time on the LCD.)