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JAVA的声音处理方法 (转自伊氏女人)-----淘特网
- 数字音频格式有很多种，其质量与采样频率和采样精度两个参数有关。频率的表示单位为赫兹〔Hz〕，它表示每秒采样次数。采样频率越高，音质就越好。采样精度为每次采样所存储的数据数量，它决定每个数字信号所能够表示的离散振幅的数量。存储每个样本的数据越多，音质就越好。但是高品质的声音需要占用大量的内存和磁盘空间。考虑到网络带宽，在Internet连接上传输就需要花费很长的时间。对于Applet来说，保证声音文件的最小化是极为重要的。-digital audio format there are many,
sample rate process
- 采样率转换代码，在数字信号处理过程中，实现不同采样率系统的数据传送。-sample rate conversion code in digital signal processing to achieve different sampling rate of data transmission.
MATLAB
- 已知一个连续时间信号 ， ，取最高有限带宽频率 。分别显示原连续时间信号波形和 三种情况下抽样信号波形，并尝试用内插公式重建原信号。-A continuous time signals, known, take the highest frequency of limited bandwidth. Respectively according to the original continuous time signal waveform and the sampling signal wavef
LPC-based-speech-signal-processing
- 本程序利用MATLAB对信号进行分析和处理，主要就是进行语音线性预测通过使实际语音抽样值与线性预测抽样值的均方误差达到最小，可以确定唯一的一组线性预测系数。-This procedure using MATLAB for signal analysis and processing, mainly for voice linear prediction by the actual voice sampling error of the mean square value and the mini
Signal-samples
- 给定一个信号 a)画出低通信号的波形； b)画出抽样速率为 fs为 4HZ 的抽样序列 c)从抽样序列中恢复出原始信号 当抽样速率为 fs 1.5HZ ，画出恢复后的波形。 当抽样速率为 fs 1.5HZ ，画出恢复后的波形。-Given a signal a) Draw a low pass signal waveform b) Draw the sampling rate fs is sampling sequence 4HZ
20160521Bandpass-sampling
- 分析带通采样定理的原理和实现过程，说明带通信号重构原始信号的方法，仿真给出不同采样频率和低通采样性能对比-By analyzing the principle and implementation process of the bandpass sampling theorem, the method of reconstructing the original signal with the signal is explained, and the performance comparison
matlab-voice-sampling-1
- matlab voice signal sampling
Beanmform
- 频域波束成形算法，适用于所有一维和二维阵列的波束成形计算。对于采样时间较短的信号，采用了2次分段，对于采样时间足够的信号则只需要1次分段计算。计算结果包含成像图结果和各扫描点处的频谱结果-Frequency domain beamforming algorithm, applicable to all one-dimensional and two-dimensional array beam forming calculations. For shorter sampling signal,
filter-of-the-audio-signal
- 简单的语音信号的采样及滤波,以音乐片段为例-the sampling and filtering of the audio signal，such as music
Compressive-Sensing-for-Signal-Ensembles
- Compressive sensing (CS) is a new approach to simultaneous sensing and compression that enables a potentially large reduction in the sampling and computation costs for acquisition of signals having a sparse or compressible representation in some
Simple-sublinear-Fourier-sampling-master
- e: Compressed Sensing (Compressive Sensing (CS), known as Compressed Sensing, Compressed Sampling). The theory states: compressible signal can be much lower than the Nyquist criterion for sampling data, and still be able to accurately recover the ori
Signal-recognition
- 函数可以作出时域波形图和频域频谱图，并且计算基因频率自动判断音频文件是男声还是女声声音。ds函数输入变量是文件名和降采样的间隔，通过插值的办法保证了原信号的长度，可以画出时域及频域图像，并且判断男女声，最后播放降采样之后的声音-The function can make time-domain waveform and frequency spectrum, and calculate the gene frequency automatically determine the audio fi
Untitled
- 使用程序，显示原始图像，对程序进行操作，采集原始图像的波形，以及上下采样信号的波形-Use the program to display the original image, the operation of the program, the acquisition of the original image waveform, and the upper and lower sampling signal waveform
GPS-Satellite-Signal-Aquisition-and-Tracking
- This GPS signal acquisition and tracking program. GPS data is included in the program files. If you want to test another GPS signal, you have run sampling of 5.714[MHz] -This is GPS signal acquisition and tracking program. GPS data is includ
Farrow-filter-error
- 用 Farrow 结构滤波器对并行采样信号进行时间误差校正, 通过 DSPBuilder 软件将设计的滤波器模型转化为硬 件语言, 利于 FPGA 实现-The Farrow filter is used to correct the time error of the parallel sampling signal, and the designed filter model is converted to hard by DSPBuilder software
Measuring Signal Similarities
- Comparing Signals with Different Sampling Rates
Inst_FFT
- 提供采样频率、窗口长度和加载信号。单击信号上的任意点。程序在点的两侧创建一个给定长度的窗口, 并计算并显示 FFT。(Provide the sampling frequency, window length and load the signal. Click on any point on the signal. Program creates a window of given length on either side of the point and calculates and di
EEG Signal Processing
- 脑电信号的完整处理过程，包括抽样，滤波，加窗，时域频域的图像分析等(EEG signal processing, including sampling, filtering, windowing, time domain frequency domain image analysis,and so on.It is very useful in EEG.)
NongLiangZHongXinFa
- 利用频谱线的能量重心原理完成对非整周期采样信号的频谱的幅值和相位的校正。(The amplitude and phase correction of the spectrum of the non periodic sampling signal is completed by using the energy barycenter principle of the spectrum line.)
Sparse image and signal processing
- 这本书在稀疏的多尺度图像和信号处理提出了艺术状态，包括线性多尺度变换，如小波，脊波和曲波变换、非线性、多尺度变换基于中值和数学形态学算子。最近的稀疏性和形态多样性的概念描述和利用各种问题，如去噪，反问题正规化，稀疏信号分解，盲源分离，压缩感知。 这本书的理论和实践研究相结合的领域，如天文学、生物学、物理学、数字媒体应用和取证。最后一章探讨了信号处理中的一个范式转换，表明以前的信息取样和提取的限制可以用非常重要的方法加以克服。 MATLAB和IDL代码伴随这些方法和应用程序重现。 实验并说明