Valve Noise

Suppose that you have a signal Y (Y can be a time series, a parametric surface or a volumetric data series) corrupted by a Gaussian noise with unknown variance. It is often of interest to know more about this variance. EVAR(Y) thus returns an estimated variance of the additive noise.EVAR provides... Platforms: Matlab

Relief Valve DynamicsModeling and Simulation of a Hydraulic Relief ValveThe attached file presents a simulation of a direct-operated hydraulic relief valve with built-in damper. The study of the valve included the following:d-deD? Construction and operation of the valved-deD? Mathematical... Platforms: Matlab

This submission was created by Valery Tchkalov and Steve Miller to help engineers understand parameterization of hydraulic valves. The included white paper, simulation models, and MATLAB scripts cover the structure of a valve model, examples of how to use optimization algorithms to tune your... Platforms: Matlab

This simple simulation shows the implementation of FbLMS algorithm for a single channel feedback 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.FbLMS... Platforms: Matlab

The function essentially simulates the colored noise which essentially is a correlated process and unlike the white noise does not have flat PSD. Although white noise is a realistic process color noise seems more practical and hence it requires correct modeling and simulation. The simulation here... Platforms: Matlab

This archive contains the function which helps in adding the noise to the image given. The noise function can b given various parameters to create various types of noises like gaussian,uniform,Rayleigh etc..........This archive also contains a function which helps in restoring a distorted image.... Platforms: Matlab

A Matlab reference implementation of a novel semi-analytical signal processing model for the binaural coherence of homogeneous isotropic noise fields is presented.The model is derived from a simplified geometrical model of the human head, where the shadowing between the left and right ear is... Platforms: Matlab

The white noise is a combination of all frecuencies.The program generate white noise using randn and create a group of filters for the musical notes.The melody is introduced in a matrix Platforms: Matlab

USAGE: noise=fftnoise(f[,Nseries]) INPUTS: f: the fft of a time series (must be a column vector) Nseries: number of noise series to generate. (default=1) OUTPUT: noise: surrogate series with same power spectrum as f. (each column is a surrogate). ------ Example: ------ %calculate if the trend is... Platforms: Matlab

Contains m-files to train and implement the MMSE noise tracking algorithm described in:J.S. Erkelens and R. Heusdens, "Tracking of nonstationary noise based on data-driven recursive noise power estimation", IEEE Trans. Audio, Speech & Lang. Proc., Vol. 16, No. 6, pp. 1112-1123, August 2008.See... Platforms: Matlab

Matlab implementation of an MMSE based noise PSD tracking algorithm for speech enhancement. This package is an implementation of the algorithm described in "MMSE BASED NOISE PSD TRACKING WITH LOW COMPLEXITY", by Richard C. Hendriks, Richard Heusdens and Jesper Jensen, IEEE International... Platforms: Matlab

Reduce image noise by measuring local pixel statistics and remapping intensities.Tristan Ursell (c)Relative Noise TransformMarch 2012Iout=relnoise(Iin,sz,sigma);Iout=relnoise(Iin,sz,sigma,'field');[Iout,Ivar]=relnoise(Iin,sz,sigma,...);[Iout,Ivar,Imean]=relnoise(Iin,sz,sigma,...);Iin = the input... Platforms: Matlab

The application plays WAV audio files of the format 44.1kHz/16Bit through a non linear x3/2 characteristic to simulate the sound of a single valve amplifier creating harmonic distortions (limited to k2). Please keep in mind that this is a simple model to approximate the non linear behavior of a... Platforms: Mac

DE:Noise makes it easy to remove excessive noise in one easy-to-use tool! DE:Noise handles spurious frame-to-frame defects ranging from fine digital/electronic noise to blotchy spots (e.g. dirt on the film). DE:Noise combines motion estimation techniques with feature-sensitive, edge-preserving... Platforms: Mac

Noise Level Calculation Noise Level Many types of noise can be eliminated during data collection or post-processing. Noise removal during data collection is preferable. Noise that cannot be removed will increase Sv measurements and bias in situ TS measurements, leading to errors in fish density... Platforms: Mac

This software will convert real-time stereo audio at CD quality directly to MP3 or WMA with Hiss removal. No more converting. Just plug an audio source into the sound card, record (with Noise Reduction) and have a ready-to-play MP3 or WMA when you're finished. The real-time Noise Reduction Block... Platforms: Windows

RAE is the advanced sound analyzer with the latest environmental noise measurement technology. It is a functional limited edition of the advanced acoustic research system DSSF3 prepared to offer its latest functions at a reasonable price. RAL + Impulse response, Running ACF, Noise measurement.... Platforms: Windows

The filter for Adobe Premiere video editor does noise reduction for video transfer from analog (video cameras, VCRs and so on) and digital media (DVD, Video CD, digital video cameras and so on) as this noise appears in input image overcompression. The noise filter highlights image outlines to... Platforms: Windows

PhotoAcute Studio improves the quality of photographs taken with digital cameras and camera phones. It increases resolution, reduces noise, removes chromatic aberrations, corrects brightness of overexposed and underexposed parts of the picture. Most modern digital cameras and some camera... Platforms: Windows

GritTec's Noise cancellation (NC) technology of single-microphone solution is used for reducing the external hindrances and background noises in speech signal. NC can be used as for the selection of speech signal, so and for the selection of background noises. NC is recommended to use in case of... Platforms: Windows