Reduce Noise

In this script the builtin function reduce is generalized to a Python 2.5 style generator called greduce. The generator never stops and can be used to create an infinite stream of values by means of the generators send() method. Platforms: Windows, Mac, *nix, Python, BSD Solaris

This model uses the NLMS adaptive filtering algorithm to suppress additive noise. It does not require a reference noise signal. However, the noise should be such that the auto-correlation of the noise be close to zero for some lag greater than a certain number. This model implements the NLMS... Platforms: Matlab

Unknown Input Observers(UIO) are used in model based FDI schemes to reduce or almost eliminate the effect of unknown disturbances on the plant/system.Further they can be used to generate residuls that are insensitive to unknown disturbances or noise, thus lower the false alarm rate.For isolation... Platforms: Matlab

The Additive Noise Channel and the Additive Guassian Noise Channel are the simplest of all signal channels.The script mimics any experiments on these channels. Platforms: Matlab

Noise Fun is a fun tool to generate human sounds such as laughter, coughing, giggling or even belching sounds. You do not share the opinion of a colleague? Then comment on his point of view by adding a funny sound. Better be careful, not everyone understands that sort of fun! ;-) Microsoft .NET... Platforms: Windows

Reduce Exe is an easy to use tool for correcting Windows Portable Executable files.- Clear binary trash in headers of PE files - Erase section names - Remove relocations table - Examine the list of the export functions - Erase selected functions in export section - Reduce size of PE files -... Platforms: Windows

A simple utility to generate random noise in RGB or grayscale. Noise Maker saves the generated noise file(s) to PNG format. Platforms: Mac

A filter designed to reduce visible noise and grain in photographic images produced by digital cameras and scanners. Neat Image is indispensable in low-light (indoors, night, no-flash, astro) and high-speed (sport, action, children) photography. It is a must-have tool for both professional... Platforms: Mac

A video filter designed to reduce visible noise and grain in digital video sequences produced by digital video cameras, camcorders, TV-tuners, digitizers of film or analog video. Neat Video provides the most accurate video noise reduction currently available. Neat Video efficiently reduces noise... Platforms: Mac

Neat Image is a filter designed to reduce visible noise and grain in photographic images produced by digital cameras and scanners. Neat Image is indispensable in low-light (indoors, night, no-flash, astro) and high-speed (sport, action, children) photography. Neat Image not only reduces the high... Platforms: Mac

A video filter designed to reduce visible noise and grain in digital video sequences produced by digital video cameras, camcorders, TV-tuners, digitizers of film or analog video. Neat Video provides the most accurate video noise reduction currently available. Neat Video efficiently reduces noise... Platforms: Mac

A video filter designed to reduce visible noise and grain in digital video sequences produced by digital video cameras, camcorders, TV-tuners, digitizers of film or analog video. Neat Video provides the most accurate video noise reduction currently available. Neat Video efficiently reduces noise... Platforms: Mac

A video filter designed to reduce visible noise and grain in digital video sequences produced by digital video cameras, camcorders, TV-tuners, digitizers of film or analog video. Neat Video provides the most accurate video noise reduction currently available. Neat Video efficiently reduces noise... Platforms: Mac

The two-step noise reduction (TSNR) technique removes the annoying reverberation effect while maintaining the benefits of the decision-directed approach. However, classic short-time noise reduction techniques, including TSNR, introduce harmonic distortion in the enhanced speech. To overcome this... Platforms: Matlab

Unlike all other posted DTMF programs, my application is specifically designed to simulate the working of a real DSP processor especially for beginners.That would mean that digital oscillator was used to create sine and cosine functions and signal is passed through 8 filters. The signal is... Platforms: Matlab

LLR_DEMOD LLR Demodulator H = LLR_DEMOD_MEX(CONSTELLATION, MAPPING, METHOD) constructs a LLR demodulator object H for a given constellation, mapping and noise variance. The vectors CONSTELLATION and MAPPING are usually generated by using MATLAB Modem Modulation Modem. and contain the complex or... Platforms: Matlab

This function can be used for adding different kind of impulse noises (i.e. Salt & Pepper noise and Random-value impulse noise) to image.Salt & Pepper Noise values are 0 or 255 but random-value impulse noise values vary from 0 to 255.website : http://kannan.keizer.googlepages.com Platforms: Matlab

Usage:Jitter = Pn2Jitter(f, Lf, fc)Inputs:f: Frequency vector (phase noise break points), in Hz, row or column.Lf: Phase noise vector, in dBc/Hz, same dimensions, size(), as f.fc: Carrier frequency, in Hz, a scalar.Output:Jitter: RMS jitter, in seconds.Phase noise data can be derived from... Platforms: Matlab

Used on cellular phones to filter outbackground noise. Measure the signal to noise ratio of an audio input in realtime. Pass speech but give silence where the input is noise (hiss, snap crackle and pop).Includes a tutorial on how to use statistics (correlation coefficient) to calculate the signal... Platforms: Matlab

This simple simulation shows the implementation of FxLMS algorithm for a single channel feed-forward active noise control system. Here, the controller generates an "anti-noise" signal to result a destructive interference at the sensor position. The objective is to minimize the noise residue.The... Platforms: Matlab