Description: 本设计采用TI公司生产的超低功耗单片机MSP430G2452和G2553分别作为定位系统的声源产生模块和信息处理模块，实现了声音信号的发生、信号收集处理和屏幕显示以及语音提示等功能。-This design uses TI' s ultra-low power MCU MSP430G2452 production and G2553, respectively, as a source positioning system generation module and information processing module to achieve a sound signal occurs, the signal collection and processing and on-screen display and voice prompt and other functions. Platform: |
Size: 342016 |
Author:zfc |
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Description: 本作品主控芯片采用TI公司的MSP430低功耗单片机，利用PT100的阻值对应相应温度的特性来检测，给PT100一恒定的电流来采样其输出电压信号。将电压信号放大到适合模数转换器的检测电压并用模数转换器转换成适用于为控制器的数字信号。单片机分析并处理模数转换器得到的对应数值量，最终将其处理成对空心瓷管电阻的功率的控制量，还要时时的将空心瓷管电阻的温度传回主控器中，从而达到闭环控制。本作品采用了键盘实时的设置和液晶实时检测结果的显示从而达到人机智能交流。并且加入一个语音报警模块，达到智能报警。-This work master control chip, adopts low-power MSP430 MCU of TI company, using PT100 resistance to detect the characteristics of the corresponding temperature corresponding to the PT100 a constant current to the output voltage signal sampling.The voltage signal amplification for the detection of voltage of adc and AD converter converts applies for the digital signal of the controller.Single-chip computer analysis and get the corresponding numerical processing AD converter, eventually will be treated as its hollow porcelain tube resistance power of control quantity in pairs, and always will be hollow porcelain pipe resistance temperature back to the host controller, so as to achieve closed-loop control.This work using the real-time keyboard Settings and LCD real-time detection results showed so as to achieve human-machine intelligent communication.And join a voice alarm module, to achieve intelligent alarm. Platform: |
Size: 709632 |
Author:邹 |
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Description: noisegen.m：生成白噪声并按照指定信噪比对语音进行加噪；
add_noisem.m：使用输入的噪音按照指定信噪比对语音进加噪；
SNR_singlech.m：输入纯净语音和加噪后的语音，计算其信噪比；
my_add_noise.m：调用上述函数进行加噪操作；-noisegen.m: white noise generated by the specified signal to noise ratio of the speech plus noise add_noisem.m: use the specified input noise into the signal to noise ratio of the speech plus noise SNR_singlech.m: pure voice input and processing after the noise voice, calculate the signal to noise ratio my_add_noise.m: call the above functions plus noise operation Platform: |
Size: 2048 |
Author:小强 |
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Description: 语音信号的分析及前期的预处理，包括语音信号的一些特征；预处理包括前期的预滤波、小波降噪、预加重、加窗分帧、语音端点检测。-Speech signal analysis and pre processing, including some of the features of the speech signal preprocessing including pre filtering, wavelet noise reduction, pre emphasis, plus window framing, voice endpoint detection. Platform: |
Size: 2048 |
Author:TZY |
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Description: 语音是人类交换信息的有效渠道之一，也是我们日常生活交流的主要形式。 语音与当今科学技术的快速发展息息相关，特别是计算机中的语音交互技术，通 过对语音信号进行采集和处理，实现人与人之间有效信息的传输、获取以及存储。 基于 MATALAB 的语音信号去噪设计，对噪声信号进行有效地滤除，将降噪后的语音信号与原始 信号在时域和频域进行对比分析，计算出信噪比，并在 MATLAB 中设计 GUI 仿 真界面进行展示.(Speech is one of the effective ways for human to exchange information, and it is also the main form of our daily life communication. Speech is closely related to the rapid development of modern science and technology, especially the voice interaction technology in the computer. Through the acquisition and processing of voice signals, the transmission, acquisition and storage of effective information between people and people is realized. Based on the noise signal de-noising design of MATALAB, the noise signal is effectively filtered, the speech signal and the original signal after the noise reduction are compared and analyzed in the time domain and frequency domain, and the signal to noise ratio is calculated, and the GUI simulation interface is designed in the MATLAB.) Platform: |
Size: 610304 |
Author:15738512336 |
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