Description: 1.0支持系统的录音多种格式,有一定的延时,没有过滤杂音功能.
2.0已取消支持系统的录音多种格式,使用PCM采集数据G711A压缩格式
(8000HZ单声道16位格式录音每秒以8K完成数据,16000HZ单声道
16位格式录音每秒以11K完成数据,音质相当好),延时降低到最小
100-500MS以内,不会随时间增加而增加延时(如果是说话测试一直保持
200MS的延时,如果是用播放歌曲来测试,有自动校正延时功能,恢
复成200MS的延时,恢复过程中不会中断歌曲的播放,只是小小加快唱
歌的速度,听觉不会觉察出来),加入了过滤杂音功能.-1.0 Support System for recording a variety of formats, has a certain degree of delay, there is no noise filtering feature has been canceled .2.0 support system recordings in multiple formats, the use of PCM data collection G711A compression formats (8000HZ mono audio format 16-per-second to 8K complete data, 16000HZ mono 16-bit format to 11K per second, recording the completion of data, sound quality quite good), delay to minimize 100-500MS within, will not increase with time delay (if it is to speak the test has remained 200MS the delay, if it is used to play songs to test, have automatic delay correction function, the restoration of 200MS into the delay, the recovery process will not be interrupted play songs, but little to accelerate the pace of singing, hearing is not perceived by ), joined the noise filtering function. Platform: |
Size: 372736 |
Author:刘鸿翔 |
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Description: Low-Complexity Adaptive Filtering for
Acoustic Echo Cancellation in Audio
Conferencing Systems 电子书，介绍声学回声消除的原理和在视频会议中的应用。-Low-Complexity Adaptive Filtering for
Acoustic Echo Cancellation in Audio Platform: |
Size: 2227200 |
Author:Liu Yi |
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Description: All three, Discrete Wavelet Transform (DWT) - Singular
Value Decomposition (SVD) and Adaptive Tabu Search
(ATS) have been used as mathematical tools for embedding
data into an audio signal. In this paper, we present a new
robust audio watermarking scheme based on DWT-SVD and
ATS. After applying the DWT to the cover audio signal, we
map the DWT coefficients, and apply the SVD, we search for
the optimal intensity of audio watermarking by using the
ATS. Experimental results show that the watermarking
method performs well in both security and robustness to
many digital signals processing, such as filtering,
cropping, mp3 and random noise. Platform: |
Size: 267264 |
Author:Rishi |
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Description: 音频信号加上噪声后通过滤波回复原音频信号-Audio signal plus noise is to restore the original audio signal by filtering Platform: |
Size: 327680 |
Author:lan |
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Description: 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 Platform: |
Size: 491520 |
Author:郑倩 |
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Description: 基于回声隐藏的信息隐藏算法，是一种音频信号的水印技术，包括隐藏信息的嵌入和提取，以及对于噪声，MP3压缩，滤波，重采样和延迟攻击的模拟。-Based on echo hiding information hiding algorithm, is an audio signal watermarking techniques, including embedding and extracting hidden information, as well as for noise, MP3 compression, filtering, resampling and delay attack simulation. Platform: |
Size: 529408 |
Author:张小小 |
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Description: 对音频进行加噪滤波，然后比较处理性能。加高斯白噪声，不同滤波器进行滤波比较。-Adding noise to the audio filter, and then compare the processing performance. Adding Gaussian white noise, filtering comparison of different filters. Platform: |
Size: 1024 |
Author:悠哉 |
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Description: Digital_Signal_Processing_Fundamentals_and_Applications
This book introduces concepts of digital signal processing (DSP) and reviews an overall picture of its applications. Illustrative application examples include digital noise filtering, signal frequency analysis, speech and audio compression, biomedical signal processing such as interference cancellation in electrocardiography,compact-disc recording, and image enhancement. Platform: |
Size: 6546432 |
Author:Huynh Ngoc Tu |
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Description: 音频信号的处理:导入一个时长若干秒的音频信号，得到该音频文件的频率fs和幅度A，显示信号的时域图和频谱图，加入频率为fs/3，幅度为2A的噪声，分析、显示并播放有噪声时时域图和频谱图，以及滤除噪声后的信号的时域图和频谱图。-Audio signal processing: Import a duration of several seconds of the audio signal to obtain a frequency fs, and the amplitude A of the audio file, the time-domain diagram of a display signal, and frequency spectrum, the frequency fs/3, amplitude noise 2A, analysis , display and playback of the noise always domain diagram and frequency spectrum, and the signal after the noise filtering time-domain diagram and spectrum FIG. Platform: |
Size: 483328 |
Author:吴翔 |
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Description: 数字音频信号滤波：读取音频文件，加入噪声，设计合理的带阻滤波器，滤除噪音，并给出所有音频的频谱以及播放试听所有声音。-Digital audio signal filtering: read audio files, add noise, the rational design of band-stop filter to filter out noise, and given all the audio spectrum and play to listen to all voices. Platform: |
Size: 2048 |
Author:niu |
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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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Description: 基于MATLAB GUI 设计的数字信号处理系统，可以实现基本的信号生成，信号分析和信号滤波以及简单的语音信号处理等功能。其中信号生成模块可实现正弦波、方波、三角波、高斯白噪声、chrip信号的生成和叠加；信号分析模块支持基本的傅氏变换下的频域分析功能；信号滤波模块可以实现数字低通、高通、带通、带阻下的切比雪夫、巴特沃思、椭圆滤波器的设计和滤波处理；语音信号处理模块可以实现音频文件的读取、播放、叠加噪声、滤波等功能。(Based on MATLAB GUI design of digital signal processing system, you can achieve the basic signal generation, signal analysis and signal filtering, and simple voice signal processing and other functions. The signal generating module can realize the sine wave, triangle wave, Fang Bo, Gauss, chrip generation and superposition of white noise signal; signal analysis module supports the analysis function of frequency domain Fourier transform basic conditions; signal filtering module can realize digital low-pass, high pass, band pass, band stop, Butterworth, the Chebyshev elliptic filter design filtering and processing of speech signal processing; module can realize audio files to read, play, adding noise, filtering and other functions.) Platform: |
Size: 324608 |
Author:庭有枇杷树
|
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Description: 实现了维纳滤波对语音信号的去噪，输入一段音频文件，取单声道，加噪声后进行滤波(Wiener filtering The Wiener filter is used to denoise the speech signal, input a segment of audio file, take the single channel, and filter the noise after adding the noise) Platform: |
Size: 3479552 |
Author:Joker298
|
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Description: 对一种音频信号进行抽样，加噪，然后进行维纳滤波(Sampling an audio signal, adding noise, and then using Wiener filtering.) Platform: |
Size: 11264 |
Author:常不轻
|
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Search - audio noise filtering