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Description: 这是本人用Matlab实现音频噪声滤除的试验，要求分析并选用适当滤波器-using Matlab audio noise filtering tests, requirements analysis and the choice of appropriate filter
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Size: 190464 |
Author: dg |
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Description: 一个音频采集压缩的VC例子，压缩为AVI格式-an Audio Capture and Compression VC example, compressed AVI format to
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Size: 100352 |
Author: 文心 |
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Description: 音频流提取 音频特征提取 音频分类 可用于说话人模型训练,静音,音乐和背景音的分类-Audio Streaming Audio extraction feature extraction can be used for classification of Audio speaker model training, quiet, Music and background noise classification
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Size: 5646336 |
Author: 安安 |
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Description: 音频设计一直是大多数电子工程师热衷的课题，在音频设计中人们对完美的追求远远超过对成本的考虑。然而，最简单的电路有时可提供最佳性价比方案。虽然市场上众多新的低功率扬声器彰显出向D类音频性能发展的趋势，但就低成本、低失真和低噪声而言，AB类音频性能仍然最有竞争力。 -Audio Design has been the most enthusiastic about the subject of electronic engineers in the audio design in the pursuit of perfection far beyond cost considerations. However, the most simple circuit can sometimes provide the best cost-effective program. Although the market on a wide range of new low-power speaker underlines Class D audio performance to the development trend, but on the low-cost, low distortion and low noise is concerned, AB audio performance is still the most competitive.
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Size: 206848 |
Author: 万柳 |
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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.
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Size: 3710976 |
Author: jiezhao |
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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.
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Size: 372736 |
Author: 刘鸿翔 |
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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.
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Size: 25600 |
Author: chenziqiang |
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Description: Remove high frequency audio noise-FIR filter design
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Size: 9216 |
Author: weesean |
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Description: Remove high frequency audio noise-IIR filter design
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Size: 10240 |
Author: dragonslaver |
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Description: removing noise from an audio file
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Size: 7168 |
Author: zeeshan |
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Description: 文章扼要评述近20年来在声频范围内声学测量技术的重要进展。对若干涉及诸如声强测量,传递函数法及膺噪声等方面测量技术的主题分别作了讨论
-The article briefly comment on the past 20 years in the audio range of acoustic measurements of the important progress in technology. A number of issues such as the sound intensity measurement, transfer function method and Ying noise measurement techniques, etc. The themes were discussed
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Size: 19456 |
Author: 齐磊 |
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Description: 噪声自适应对消的Matalb Simulink模块，利用标准的NLMS算法，实现噪声对消，AEC（audio echo cancel）或ANC（audio noise cancel）-Adaptive Noise Cancellation of Matalb Simulink module, using a standard NLMS algorithm, to achieve noise cancellation, AEC (audio echo cancel) or ANC (audio noise cancel)
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Size: 10240 |
Author: 居太亮 |
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Description: VC6.0++源代码,消除音频噪音,并用图形描绘音频-VC6.0++ source code to eliminate the audio noise, and audio graphics depicting
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Size: 34816 |
Author: 李少东 |
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Description: 用双谱和小波变换去除信号中加性高斯噪声的相关程序
1.实现单个变量的双谱分析程序
2.用傅立叶反变换求自相关函数的程序
3.用fft求取喜好频谱、功率谱、均方根谱、对数谱的程序
4.读取.wav语音信号后用小波去加信白噪声的程序
5.用各种小波和阀值对同一信号去加性噪声效果比较的程序
-Double-spectral and wavelet transform to remove the signal plus Gaussian noise procedures 1. To achieve a single variable pairs of spectral analysis procedures 2. Using Fourier inverse transform procedures for seeking self-correlation function 3. To strike a preference to use fft spectrum , power spectrum, RMS spectrum, several spectra of the procedure 4. read. wav audio signal with wavelet plus a letter to the white noise process 5. with a variety of wavelet and threshold on the same signal to additive noise Comparison program
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Size: 5120 |
Author: 沈玉杰 |
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Description: 采用FFT和低通滤波器的两种语音除噪算法比较，MATLAB编程，附效果图-Using FFT and low pass filter audio noise canceling algorithm for the two compare, MATLAB programming, with a results map
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Size: 49152 |
Author: 陈洪 |
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Description: 音频降噪算法，可以有效的降低噪音音频降噪算法，可以有效的降低噪音-Audio noise reduction algorithm can effectively reduce the noise, audio noise reduction algorithm can effectively reduce the noise
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Size: 253952 |
Author: 何江平 |
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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
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Size: 4096 |
Author: sj |
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Description: its a training for students to add a noise in any audio and then filter that specific frequency.
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Size: 210944 |
Author: Haroon |
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Description: 本文在DCT噪声信号模型研究的基础上,提出了一种新的音频水印嵌入位置选择策略和一个应用该策略的自适应音频水印算法. 通过定义DCT系数的噪声敏感度,建立了水印嵌入位置和嵌入水印后的音频信号的听觉感知性之间的关系,根据音频水印的不可听性的要求选择最优的嵌入位置,然后调节水印强度来满足鲁棒性的要求,从而最大程度地保持音频水
印的不可听性和鲁棒性,为解决音频水印嵌入过程中不可听性和鲁棒性之间的矛盾提供了一种策略.-Though m any w orks in the literature agree that w aterm ark should be em bedded in the middle2fre2
quency coefficients or percep tually significant components, how to determ ine the position em bedded has no universal
definition. A new em bedding strategy and an algorithm app lying the strategy are p roposed for audio w aterm arking in
DCT dom ain based on research of DCT noise m odal. B y defining a noise sensitivity vector, a m ath relationship betw een
the w aterm ark em beddable position and the audible quality of the audio file w ith w aterm ark is set up.
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Size: 873472 |
Author: 郑杨 |
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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
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Size: 1266688 |
Author: LeiHan |
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