Description: Signal processing theory plays an increasingly central role in the development of modern telecommunication and information processing systems, and has a wide range of applications in multimedia technology, audio-visual signal processing, cellular mobile communication, adaptive network management, radar systems, pattern analysis, medical signal processing, financial data forecasting, decision making systems, etc. The theory and application of signal processing is concerned with the identification, modelling and utilisation of patterns and structures in a signal process. The observation signals are often distorted, incomplete and noisy. Hence, noise reduction and the removal of channel distortion is an important part of a signal processing system. The aim of this book is to provide a coherent and structured presentation of the theory and applications of statistical signal processing and noise reduction methods. Platform: |
Size: 3711187 |
Author:jiezhao |
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Description: ACMWaveOut/ACMDialog/ACMWaveIn/mixercontrol等音频控件使用实例，实现了声音的回放、减噪、波形显示等-ACMWaveOut/ACMDialog/ACMWaveIn/mixercontrol audio controls, such as the use of examples, the realization of the sound playback, noise reduction, waveform display Platform: |
Size: 1652736 |
Author:天一 |
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Description: Signal processing theory plays an increasingly central role in the development of modern telecommunication and information processing systems, and has a wide range of applications in multimedia technology, audio-visual signal processing, cellular mobile communication, adaptive network management, radar systems, pattern analysis, medical signal processing, financial data forecasting, decision making systems, etc. The theory and application of signal processing is concerned with the identification, modelling and utilisation of patterns and structures in a signal process. The observation signals are often distorted, incomplete and noisy. Hence, noise reduction and the removal of channel distortion is an important part of a signal processing system. The aim of this book is to provide a coherent and structured presentation of the theory and applications of statistical signal processing and noise reduction methods. Platform: |
Size: 3710976 |
Author:jiezhao |
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Description: 这个MATLAB程序是用于对音频信号进行降噪处理，可以在这个软件上进行更改实现自己的功能。-The MATLAB program is used to handle audio signal noise reduction, you can change the software realize the functions of their own. Platform: |
Size: 1363968 |
Author:颜靖华 |
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Description: 在强噪声环境下，说话人话音受到很强烈的干扰，语音增强是很有必要的。在TDS5410-TDK实验板，实现了谱衰减算法。主要包括有声/无声检测算法、发送/接收缓冲区的调度、语音降噪算法。试验结果表明，其降噪效果明显，试听效果较好。
-In strong noise environment, the speaker voice by the very strong interference, speech enhancement is necessary. TDS5410-TDK experiments in panels, to achieve a spectral attenuation algorithms. Include audio/silence detection algorithm, Send/Receive buffer scheduling, voice noise reduction algorithm. The experimental results show that the effect of its noise reduction obviously, listen better. Platform: |
Size: 25600 |
Author:chenziqiang |
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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: 5800C Fm芯片资料和驱动代码
技术特点：
*国内首颗采用CMOS工艺的调频收音机芯片；
*驱动能力强，可直接驱动耳机及放大器；
*功耗低，比国外先进方案还低1mA；
*频率覆盖从76M-108M的各国调频波段；
*高度集成度，所需外围器件数为零；
*强大的LOW-IF数字音频结构；
*强大的数字信号处理技术（DSP）,实现自动频率控制和自动增益控制；
*数字自适应噪声抑制
接受灵敏度高、音质出色、立体声效果优异；
*支持重低音，可调式电台搜寻、柔软静音和混音等功能；
*只需一个32.768K晶振作为参考时钟；
*支持I2C和SPI数字接口，支持I2S音频接口，可以配合所有多媒体处理芯片；
*可调去加重（50／75 us) ；
*模拟和数字音量控制；
*线性模拟输出电压；
*两线和三线控制接口模式；
*封装面积： 4×4mm，24-pin QFN-5800C Fm chip code data and drive
Technical characteristics:
* Domestic first CMOS process using the FM radio chip
* Drive ability, and can directly drive headphones and amplifier
* Low power consumption, advanced program than lower 1mA
* Frequency coverage from 76M-108M FM band of countries
* A high degree of integration, necessary to zero the number of peripheral devices
* LOW-IF powerful digital audio structure
* A powerful digital signal processing technology (DSP), automatic frequency control and AGC
* Digital Adaptive Noise Reduction
Acceptance of high sensitivity, excellent sound quality, excellent stereo sound effects
* To support the heavy bass, adjustable radio search, soft mute and blend functions
* Only one 32.768K crystal as a reference clock
* Support for I2C and SPI digital interface to support I2S audio interface will be in line with all the multimedia processing chip
* Adjustable de-emphasis (50/75 us)
* Analog and digital volu Platform: |
Size: 1367040 |
Author:文社 |
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Description: 用于信号降噪 处理，使用小波变换算法，可用于音频文件处理-For signal noise reduction, using wavelet transform algorithm can be used for processing audio files Platform: |
Size: 353280 |
Author:Fan |
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Description: 对音频进行短时傅里叶变化，维纳滤波后还原，可以滤去20db不相关噪声-Short time Fourier transform of the audio, after the reduction Wiener filter can filter out irrelevant noise 20db Platform: |
Size: 4096 |
Author:sj |
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Description: 读入需要的语音文件（wav格式），进行频谱分析，对其加入随机噪声，然后进行降噪处理，降噪处理前后效果较佳-Need to read the audio files (wav format), spectral analysis, it added random noise, then noise reduction, noise reduction before and after treatment was better Platform: |
Size: 1024 |
Author:叶子 |
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Description: 实现在单信道语音信号处理中的降噪，用Spectral Subtraction算法实现的，内涵音频文件，代码中包括给纯净音频文件加噪声的部分。-Noise reduction in single-channel speech signal processing, using the Spectral Subtraction algorithm, the connotation of an audio file, the code in the package
Including pure audio files and part of the noise. Platform: |
Size: 838656 |
Author:李西华 |
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Description: 是一个集声音编辑，播放，录制，和转换的音频工具，体积小巧，
功能却不弱。可打开的音频文件相当多，包括WAV, OGG, VOC, IFF,
AIF, AFC, AU, SND, MP3, MAT, DWD, SMP, VOX, SDS, AVI, MOV, APE
等音频文件格式，你也可以从 CD 或 VCD 或 DVD 或其它视频文件中提
取声音。内含丰富的音频处理特效，从一般特效如多普勒、回声、混响
、降噪到高级的公式计算(利用公式在理论上可以产生任何你想要的
声音)，效果多多。-Is a sound editing, playback, recording, and conversion of audio tools, compact, functional but not weak. Open quite a lot of audio files, including WAV, OGG, VOC, IFF, AIF, AFC, AU, SND, MP3, MAT, DWD, SMP, VOX, SDS, AVI, MOV, APE audio file format, you can also extract the sound from a CD or VCD or DVD or other video files. Contains a wealth of audio processing effects, from the general effects such as Doppler, echo, reverb, noise reduction to high-level formula (using the formula in theory can produce any sound you want), the effect of a lot. Platform: |
Size: 1752064 |
Author:胡哥 |
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Description: 实时语音降噪的资料包，自己正在研究设计一个语音处理软件，等完成后传上来分享。-Real-time voice and noise reduction package, he is studying the design of a voice processing software to pass up and so finished sharing. Platform: |
Size: 5423104 |
Author:尚想 |
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Description: 基于ARMM3内核由ST公司开发的STM32VET6编写的USB声卡，达到-普通市面上销售的USB声卡的效果，对输入声音的讯号具有降噪，高、低音激励以及混响效果的加入等作用。-Based ARMM3 kernel developed by ST STM32VET6 prepared USB sound card, reach- ordinary commercially available USB sound card' s effect on the input audio signal with noise reduction, high, bass incentives and adding reverb and other effects. Platform: |
Size: 390144 |
Author:胡斌 |
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Description: 用matlab处理音频, 对一段音频加入噪声然后滤除噪声还原, 绘制过程中的频谱图-Matlab deal with audio, for adding some audio noise reduction and filter noise, rendering the process of spectrum Platform: |
Size: 1266688 |
Author:LeiHan |
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Description: 设计音频降噪算法，并用MATLAB仿真实现。
1）读入一段音频后添加噪声，必须包括两种不同的噪声，信噪比：0dB~10dB；
2）分别采用滑动平均滤波器，直接频域滤波，以及谱分析后设计滤波器滤波三种方法实现，并对比效果。
3）给出各种方案的设计依据、代码、频响曲线，以及输入输出对比图。-Audio noise reduction algorithm design, and use MATLAB Simulation.
1) Read after adding noise into an audio, it must include two different kinds of noise, SNR: 0dB ~ 10dB
2) respectively moving average filter directly in the frequency domain filtering, and the filter is designed to achieve three methods filter after spectral analysis and contrast.
3) Give the design basis, code, frequency response curve, and input and output comparison chart of the various programs. Platform: |
Size: 1024 |
Author:Zhou Hong |
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Search - AUDIO NOISE reduction