Seismic Signals

Code_Aster is a finite element solver (similar to Nastran, Abaqus, Ansys, ...) and it solve different types of mechanical, thermal, acoustic, seismic, problems. It can be used for simulation in thermo - hydro - mechanics and calculation of structures. It has been validated by more than 3000 test... Platforms: Windows, Windows 8, Windows 7, Windows Server

Calculates the average log-spectral distance between CLEAN and NOISY signals. It has the capability of calculating this distance for a specified sub-band as well. This measure is used for evaluation of processed speech quality in comparison to the original speech. Platforms: Matlab

This application displays both signals from created MQT Database. Beat annotations and waveform boundary annotations included in the database can be viewed with the signal.Moving a slider, plots further fragments of the signals. User can adjust window length.Samples of signals and annotations are... Platforms: Matlab

SSA generates a trayectory matrix from the original series by sliding a window of length L. The trayectory matrix is aproximated using Singular Value Decomposition. The last step reconstructs the series from the aproximated trayectory matrix. The SSA applications include smoothing, filtering, and... Platforms: Matlab

openGPR is a framework for the management, processing and 2D/3D-visualization of ground penetrating radar (GPR, georadar) data. It interoperates with existing tools like Seismic Unix, with a special focus on georadar applications. Platforms: *nix

STK (Seismic Tool Kit) is a tool for seismic signal processing in graphical interface: various filters, spectral analysis, polarization, time-frequency, Hilbert transform, instrumental response...etc. Signals processed in STK must be in SAC format. Platforms: *nix

With improvements in signal processing some new models with enhanced features are made available.TVAR is on similar pattern.This model is better than conventional am-fm model in some respect as it facilates the implementation of same algo on various signals bearing different parameters. Use of... Platforms: Matlab

A signal object (an object of class "signal") is a set of data in an one dimensional array, combined with information about its sample rate, starting time and other useful infos. A number of methods makes it easy to generate and modify signals."signal" is used and tested for considerable time in... Platforms: Matlab

Word War vi is a side scrolling arcade game in which you pilot your vi-per craft through core memory eradicating the emacs processes by firing -9 signals at them, or injecting NULL pointers into their execution stream while evading OS defenses. Platforms: *nix

Signals and Systems, Guide to Matlab, Matlab 7, Matlab Getting Started, Matlab Demystified, Matlab for Engineers Platforms: Windows

Marsyas, which stands for Music Analysis, Retrieval and Synthesis for Audio Signals is specially designed to be an Open Source software framework for audio processing. The main goal of the framework is to provide a general, extensible and flexible architecture that allows easy experimentation... Platforms: Windows

CHAPTER 1: FOURIER ANALYSIS1.1 CONTINUOUS-TIME FOURIER SERIES (CTFS)1.2 PROPERTIES OF CTFS 1.2.1 Time-Shifting Property 1.2.2 Frequency-Shifting Property 1.2.3 Modulation Property1.3 CONTINUOUS-TIME FOURIER TRANSFORM (CTFT)1.4 PROPERTIES OF CTFT 1.4.1 Linearity 1.4.2 Conjugate Symmetry 1.4.3 Real... Platforms: Matlab

This is a set of functions written to teach the stream programming base theory. I think that this can be useful to the programmers that don't know what the stream programing is and manage signals or (infinite) sequences of entities. Platforms: Matlab

Computes the Woody average by first aligning individual signals (corrupted by jitter) with the standard average. Uses xcorr to compute the lag and then re-averages the signals to get an improved estimate.Example included in help.Technique deteriorates at low SNRs. Platforms: Matlab

BioEra is DSP visual designer that can be used to create interfaces between human being and a machine with using bio signals like EEG, QEEG, HEG, EMG, ECG, GSR, EOG, visual/sound entrainment and others. Platforms: Windows, Mac, Linux

BioSig is a software library for processing of biomedical signals (EEG, ECG, etc.) with Matlab, Octave, C/C++ and Python. A standalone signal viewer supporting more than 30 different data formats is also provided. Platforms: Windows, Mac, Linux

JMorseTrainer is a program which helps you to learn Morse code.It generates random Morse signals from dictionaries which can contain single words or full sentences. Platforms: Mac

SPINspiral is a parameter-estimation code for the analysis of gravitational-wave signals detected by LIGO/Virgo. Platforms: Mac, BSD, Linux

A fourier filter for time-series signals. Version 1.5, May 4, 2007, is calibrated specifically for time-based signals. Does not require the Signal Processing Toolbox. By adjusting the parameters, you can create lowpass, highpass, bandpass, and bandreject (notch) filters with variable cut-off... Platforms: Matlab

This code implements automatic gain control for audio signals, which attempts to apply a smoothly-varying gain to an audio waveform in order to keep its energy close to some target level. This version also tries to balance the energy in individual frequency bands. It works by taking the... Platforms: Matlab