Description: 该程序实现了小波变换对音频信号的降噪处理，简单实用！程序运行时需要一个.wav格式的音频信号。-Procedures for the implementation of the wavelet transform of the noise reduction audio signal processing, simple and practical! Procedures required a run-time. Wav format audio signal. Platform: |
Size: 1024 |
Author:刘凯 |
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Description: 利用matlab模拟的语音识别系统，读取wav文件进行信号处理-Matlab simulation of the use of voice recognition systems, to read wav files Signal Processing ~ ~ ~ Platform: |
Size: 2051072 |
Author:wujian |
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Description: 端点检测是指用数字处理技术来找出语音信号中的各种段落（如音素、音节、词素、词等）的始点和终点的位置。语音段起止端点检测是语音分析、语音合成和语音识别中的一个必要环节。传统的端点检测方法是从wav文件中获取语音采样，将其分帧并计算短时能量和过零率参数，然后进行端点检测。这种工作方式被称为离线处理方法 ，无法实现语音信号的实时处理，对于语音信号分析具有一定的局限性。本文通过开发ActiveX控件，在MATLAB环境下将其嵌入到figure窗口中，以GUI程序的方式使用，实现语音信号端点检测的实时处理。-Endpoint detection is the use of digital processing techniques to identify the speech signals in a variety of paragraphs (such as phoneme, syllable, morpheme, word, etc.) the starting point and the end position. Speech endpoint detection is a paragraph beginning and end speech analysis, speech synthesis and speech recognition of a necessary link. Traditional endpoint detection method is to obtain from the wav file voice sampling, its sub-frame and calculate the short-term energy and zero-crossing rate parameters, and then proceed to endpoint detection. This work is called off-line approach can not achieve real-time speech signal processing, analysis of the speech signal has a certain limitations. In this paper, through the development of ActiveX controls, in the MATLAB environment to embedded figure window to use GUI program, the realization of speech signal processing real-time endpoint detection. Platform: |
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Author:cike |
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Description: 观测实时模拟信号（语音）的频谱
用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图。
-Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw the spectrum map and voice waveform. Platform: |
Size: 63488 |
Author:benny |
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Description: 信号频谱分析
1. 观测已知方波信号、正弦波信号的频谱
分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。
2. 观测实时模拟信号（语音）的频谱
用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis 1. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. 2. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum Platform: |
Size: 64512 |
Author:benny |
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Description: 信号频谱分析
1. 观测已知方波信号、正弦波信号的频谱
分析频率为4KHz、8KHz的占空比为50 的方波信号、正弦波信号的频谱。记录所得频谱图。
观测实时模拟信号（语音）的频谱
用音频设备采集一段语音，将语音存为.wav格式。对wav文件作分段傅里叶变换分析。语音是分音节的，应把它分段分析，而且实际运用中的数字信号处理的FFT的点数是有限的，一般只能达到千点。用傅里叶反变换IFFT，从频域恢复信号。画出频谱图和语音波形图-Signal spectrum analysis 1. Observing a known square-wave signal, sine wave signal frequency spectrum analysis 4KHz, 8KHz for the 50 duty cycle square wave signal, sine wave signal frequency spectrum. The recorded frequency spectrum. Observing real-time analog signal (voice) of the spectrum collected with the audio devices section of voice, voice saved as. Wav format. Wav file of the sub-Fourier transform analysis to make. Speech is divided into syllables, it should be sub-analysis, and practical application of digital signal processing of the FFT points is limited, generally only reach 1000 points. Fourier inverse transform IFFT, to restore the signal from the frequency domain. Draw maps and voice waveform spectrum Platform: |
Size: 94208 |
Author:benny |
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Description: 语音信号处理：This package encloses a small application dedicated to speech signal processing
at 8 kHz or 16 kHz. This application reads standard *.wav or *.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs.-This package encloses a small application dedicated to speech signal processing at 8 kHz or 16 kHz. This application reads standard*.wav or*.pcm files through UI dialog box, plots and plays the signal with vertical dynamic crosshairs. Platform: |
Size: 327680 |
Author:银杏 |
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Description: MATLAB program for APT image decoding. Use of the envelope detection. Processing of a WAV file, creating image Platform: |
Size: 5120 |
Author:Eduardas |
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Description: 基于Matlab的音频文件数字滤波处理。本文基于Matlab分析了wav声音文件频谱与声音的关系，并给出了不同采样频率对输出声音信号的影响。-Matlab-based digital filter processing of audio files. This analysis based on Matlab wav sound files and sound relationship between the spectrum and gives different output sampling frequency of the sound signals. Platform: |
Size: 371712 |
Author:beifang |
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Description: 用MATLAB对声音进行处理，对声音信号的读取、混叠、回放，并且生成处理前和混叠后WAV格式的音频格式，-Using MATLAB for processing of sound, the sound signal read, aliasing, playback, and to generate pre-and post-aliasing WAV formatAudio format, Platform: |
Size: 1024 |
Author:w m c |
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Description: 音樂訊號處理分析
一、音樂信號的時譜和頻譜觀察(p.2-p.3)
二、音樂信號的採樣(p.4-p.9)
使用的分析軟體：MATLAB 7.7 R2008b
實驗使用音檔：許大為MATLAB實驗音檔.wav
音檔原始時長：3 seconds
-Music signal processing analysis I, II, and spectrum observed spectral sampling music signal (p.2-p.3) music signal (p.4-p.9) using analysis software: MATLAB 7.7 R2008b experiments using sound files : Xu Dawei MATLAB experimental sound wav sound file when the original file length: 3 seconds Platform: |
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Author: |
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Description: 通过使用matlab自带的小波函数对语音信号进行处理，首先对载入的语音信号snow.wav添加高斯白噪声，然后对加噪的语音信号进行三层小波分解，最后分别采用强制性和默认阈值两种方法对信号进行消噪处理，强制性消噪方法直接将分解的高频系数全部变为0，默认阈值通过对分解的高频系数设定阈值来进行消噪-By using MATLAB built-in wavelet function of speech signal processing, first on the loading of the speech signal snow.wav added white Gaussian noise, and then to the speech signal with noise to three layer wavelet decomposition. At last, the mandatory and the default the signal denoising threshold methods are mandatory elimination noise method directly to the decomposition of the high frequency coefficients all goes to zero, the default threshold by the decomposition of the high frequency coefficients threshold to remove noise Platform: |
Size: 2048 |
Author:林吉 |
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Description: 这是一个wav音频读取程序，用于matlab中，对于读取音频中的数据，对音频数据处理非常实用。(This is a wav audio read program, used in MATLAB, for reading audio data, audio data processing is very practical) Platform: |
Size: 27648 |
Author:justbeery
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Description: 可以实现对自己录制的wav格式声音进行频谱分析时域分析并且加入随机噪音，可播放声音进行对比，自动绘制波形频谱图。最后进行去噪滤波。适合大学生数字信号处理课程实验(It can realize the spectral analysis of the wav format, record the time domain analysis and add random noise. It can play the voice contrast, and automatically draw the waveform spectrum. Finally, de-noising filtering is carried out. Experiment on the course of digital signal processing for College Students) Platform: |
Size: 17379328 |
Author:晚风拂柳颜
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Description: 本软件是由MATLAB App Designer工具制作而成的一款集音频采集、播放、时域频域分析、加噪、滤波、特定特效处理及自定义DIY滤波特效处理的综合音频分析处理播放器
注：1.把文件夹放到MATLAB工作空间中，使得图标资源在MATLAB路径中
2.录音为 .wav格式，音乐播放器只支持.wav 和 .mp3格式
3.Windows安装包可直接安装为Windows应用软件（需联网下载MATLAB环境包）(This software is a synthetical audio analysis and processing player which is made by MATLAB App Designer tool. It integrates audio acquisition, playback, time-domain and frequency-domain analysis, noise addition, filtering, special effect processing and custom DIY filtering special effect processing.
Note: 1. Place folders in the MATLAB workspace to make icon resources in the MATLAB path.
2. Recording is in. wav format. Music player only supports. wav and. MP3 formats.
3. Windows Installation Package can be directly installed as Windows application software (need to download the MATLAB environment package online)) Platform: |
Size: 42087424 |
Author:yige |
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Search - matlab wav processing