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tele3
- 模拟信号的数字化传输---增量调制系统 用SIMULINK建立简单增量调制系统的模型并进行 (3) 正弦信号 (4) 语音信号 的传输。 改变抽样频率和量化台阶大小,观察重建信号以及量化噪声信号的波形;对于语音信号主观评价声音质量的变化。 -Digitized analog signal transmission systems--- delta modulation delta modulation SIMULINK easy set up of the model s
send
- 伪随机码,运用语音发射,噪声为发射信号,音乐为噪声信号。-Pseudo-random code, the use of voice-launch, launch signal noise, music for the noise signal.
elvis
- 基于FIR的有噪声语音信号处理 MATLAB处理-Noise based on the FIR of speech signal processing
abc
- 基于FIR的有噪声语音信号处理 MATLAB-Noise based on the FIR of speech signal processing
voice
- 本程序为一个用matlab实现的语音滤波程序,能计算并显示语音信号的幅频特性,巴特沃斯低通滤波器幅度和相位响应,引入噪声后的幅频特性,以及滤波后的DFT幅频特性。本程序附有语音文件以供试验。-This program is an implementation using matlab voice filtering procedures, can calculate and display the speech signal amplitude-frequency characteristics
plugin-huang-part4
- 音频编码技术与标准介绍包括语音编码技术和音频编码技术 PCM、ADPCM、SB-ADPCM、线性预测、CELP、ACELP 心理声学模型、时频变换、窗切换、时域噪声整形、带宽扩展、立体声编 码、空间音频编码-Audio coding technology and standards introduced, including voice coding techniques, and audio coding technology ⣶
sound_test
- 通过BUTTERWORTH滤波器,讲语音信号中的噪声过滤掉.-By BUTTERWORTH filter, speaking voice signal in the noise filtered out.
noiseshuaijian1
- 语音的消噪程序,传统普减法的改进,有效去除背景噪声-Speech de-noising process, the traditional S & P subtraction improvements, effectively remove background noise
a_modified_method
- 介绍了改进谱减法的原理及算法。提出在信噪比(sNR)较低的情况下,根据语音短时能量和过零率,判断在无声 或有声期间是否偶然的噪声过高,从而设定合适的参数降低噪声。-Introduced an improved spectral subtraction principles and algorithms. Proposed signal to noise ratio (sNR) lower case, according to voice short-term energy and zero-cr
endpoint_detection
- 噪声环境下的端点检测在语音信号分析和识别中占有重要地位。文中将分形理论中的分形记盒维数应用到端点检测算法中,采用了基于分形记盒维数与短时能零比相结合的端点检测算法,以分形记盒维数为主要判决条件,并在判决门限的设定上采用了自适应机制。-Noise environment endpoint detection in speech signal analysis and identification play an important role. Wen will be fractal theory
compensation
- 用于实现语音中的对消噪声,本程序用matlab实现-For the voice in noise cancellation, the program achieved with matlab
ISD4004
- ISD4004系列工作电压3V,单片录放时间8至16分钟,音质好,适用于移动电话及其他便携式电子产品中。芯片采用CMOS技术,内含振荡器、防混淆滤波器、平滑滤波器、音频放大器、自动静噪及高密度多电平闪烁存贮陈列。芯片设计是基于所有操作必须由微控制器控制,操作命令可通过串行通信接口(SPI或Microwire)送入。芯片采用多电平直接模拟量存储技术, 每个采样值直接存贮在片内闪烁存贮器中,因此能够非常真实、自然地再现语音、音乐、音调和效果声,避免了一般固体录音电路因量化和压缩造成的量化噪声和"金属
Wienerfilernoisereducement
- 是用matlab编译的wiener滤波器,实现噪声的消除和语音质量的提高-Is compiled matlab wiener filter, to achieve noise cancellation and voice quality improvement
soundchange
- 对原始语音进行上采样和下采样,分析对比他们的时域图和频谱图。最后对比原始语音、75HZ激励、150HZ激励以及噪声激励下的效果-SOME SIMPLE MANIPULATIONS OF SOUND USING DIGITAL SIGNAL PROCESSING The original sound and its spectrogram Downsampling the waveform downsampling Upsampling the waveform Li
strongnoiseplanevoice1
- 用matlab实现怎样在强噪声条件下进行语音识别,可调试成功,效果良好哦-Wrote it myself on the voice sub-frames, plus windows, endpoint detection procedures can be successfully debug。you can try later^
lunwen
- 本文简要介绍了语音信号采集与分析的发展史以及语音信号的特征、采集与分析方法,并通过PC机录制自己的一段声音,运用Matlab进行仿真分析,最后加入噪声进行滤波处理,比较滤波前后的变化。-This paper introduces the voice signal acquisition and analysis of the history and characteristics of speech signals, sampling and analysis methods, and thro
voice
- 语音的预加重和去加重,进行语音的前期处理,减少噪声。-Voice of the pre-emphasis and de-emphasis, voice of the pre-processing to reduce noise.
12345
- 基于MATLAB的有噪声的语音信号分析与处理设计-MATLAB-based speech signal with noise analysis and processing design
filter
- 读入语音信号,加入噪声后将其滤除再还原声音-Adding a pulse noise to an existed speech then filt it with a specified FIR filter.
video_filtering
- 语音文件中有单频噪声,设计高频滤波器和低频滤波器进行语音滤波-Audio files with a single frequency noise, high frequency filters and low-frequency filter design for voice filtering