Search Results for "frequency spectrum analyzers"
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Showing 28 open source projects for "frequency spectrum analyzers"
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eqMac
macOS System-wide audio equalizer & volume mixer
System audio equalizer for macOS. Professional grade Parametric EQ & volume mixer. If you feel like your audio device (Headphones or Speaker) does not have enough Bass (low frequency) punch, or vice versa, you can adjust that using eqMac. macOS does not have a direct way to access the System Audio stream, so we use the eqMac Audio driver to divert the system audio to the driver's input stream. Then eqMac captures that Input audio stream processes it, and sends it directly to the output device... -
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AUDio MEasurement System
PC based Oscilloscope and Spectrum analyzer using sound card
AUDio MEasurement System - a multi-platfrom system for audio measurement through sound card in the PC. It contains: generator, oscilloscope, audio spectrum analyzer (FFT) and frequency sweep plot. Compiles and works under Linux, Windows and MacOS. Source code is available in "git" and as ZIP snapshot. For more information see README.md -
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SpectrumViewer for Windows
Continuous display of audio spectrum from PC input or wave file
Reads audio from Windows audio interface or wave file and creates a continuous spectrum display. Command line support for generating sine, square, triangle and sawtooth wave files. Uses biquad IIR digital filters for frequency detection, plus digital lowpass filters for output extraction. Highly configurable. 60+ FPS with suitable hardware. Manual or automatic gain control. -
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ntx
Neutrality tests using the SNP site frequency spectrum
Tests on "neutrality" are designed to detect systematic deviations from chance patterns in genetic data. This tool computes for a given SNP site frequency spectrum some standard test statistics like Tajima's D, Fay & Wu's H, etc. Additionally, the user may adapt the tests to specific demographies by specifying non-standard first and secondary moments. These can be obtained e.g. from simulations. -
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Visashot
A python screenshot script for vintage test & measurement instruments
Visashot lets you capture screenshots from vintage Test & Measurement equipment like oscilloscopes and spectrum analyzers. Visashot uses the VISA abstraction layer and associated libraries to access instruments over HP-IB (GP-IB), serial, ethernet and other supported interfaces. At the moment 80+ instruments are supported. All are from HP/Agilent/Keysight but models from other brands could be supported as well, please consider contributing! -
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pysoundanalyser
a python program to generate, visualize, and manipulate short sounds
pysoundanalyser is a Python application that can be used to generate, visualize, and manipulate short sounds through a graphical user interface. Visualization functions include visualization of the power spectrum, the spectrogram, the autocorrelation, and the autocorrelogram of a sound. Manipulation functions include filtering, concatenating, cutting, and scaling the level of a sound. Several types of sounds can also be generated including, pure tones, harmonic complex tones, noise of different... -
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Data Window and FIR Design
Python QT code to design data windows and FIR's
This Python QT4 Application, was created for those who have the need to design data windows and FIR filters. Designed and implemented by Peter Jones Consulting. Copyright (C) 2022. The Data Window and FIR Filter Design Tool app, has two different types of toolboxes; the Data Window toolbox and the FIR filter toolbox. The Data Window portion of the Design app, may be used for viewing the frequency response of three different data window types, which are all... -
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est-sfs
Estimate the unfolded site frequency spectrum and ancestral states
est-sfs implements a maximum likelihood method to infer the unfolded site frequency spectrum (the uSFS) and ancestral state probabilities for DNA sequence data. The uSFS is a vector of counts of nucleotide sites with x derived allele copies in a sample of gene copies from a population. est-sfs infers the uSFS and ancestral state probabilities at polymorphic sites in a focal species using information from up to three outgroup species. Three models of nucleotide substitution have been implemented... -
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eqMac
System Audio Equalizer for macOS - Parametric EQ & Volume Mixer
eqMac is a System Audio Equalizer and processor for Apple macOS platform. -
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freesrs
python library for shock response spectrum (SRS) analysis.
The shock response spectrum (SRS) allows to estimate transient acceleration signals in terms of a maximum response of a dynamic vibration system. Its origin probably dates from civil engineering and the problem of seismic excitations, i.e. earthquake response of buildings, see Clough Penzien 1975. The SRS is a spectrum, i.e. a curve giving the maximum acceleration response depending on frequency. It is derived from a 1-mass-spring-damper vibration system being excited by a base excitation, i.e... -
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Panoramic RTL-SDR directly
Open source RTL-SDR Panoramic Spectrum Analyzer
This utility 'rtl_sdr_panorama.exe' designed for panoramic imaging spectrum REALTIME any (reasonable) band by accumulating within 0.5 second spectral samples of limited bandwidth for simultaneous monitoring (speed via USB, usually within 2...3 MHz) c DVB- chip based RTL-2832/R820 (13...1864 MHz). Controlled parameters: 1. Dongle Phone system. 2. Initial scan, Hz. 3. Endpoint scan, Hz . 4. Spacing scanning ediitsy tens kHz/MHz. 5. Noise level, dB. 6. Magnitude clock frequency correction... -
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coatli
Second and third moments of the "Site frequency spectrum".
In population genetics, the "site frequency spectrum" is an important summary statistic of the variation in aligned DNA sequences. This package contains implemented algorithms for the analytical calculation of the expected second and third moments of this spectrum (under the standard neutral Wright-Fisher model). Furthermore there are utilities to estimate these quantities from coalescent simulation (using output of the program 'ms', written by R.R. Hudson). As an add-on some small utilities... -
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DvapUtil
DVAP Utility for band scanning, calibration, firmware update
An example program that uses a Digital Voice Access Point Dongle(DVAP) to implement a simple spectrum analyzer and provide firmware update and calibration functions. -
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bwfinder
Exogenous feature extractor from brainwaves
This program for Scilab searches for primary peaks in the segments of brainwave signal spectrum which are much above the signal spectrum average. Brainwave segments of 1 s are Fourier transformed, thresholded and merged if contiguous. Selected segments are drawn in time domain, frequency domain and a narrow-band analysis at 75 Hz is attempted. This program should detect strong external signals in brainwave recordings. Weak signals are not detected. This program requires the "edf2ascii... -
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ODFR
Software for simulation of slow motional EPR spectra in aligned media
ODFR is intended for simulation of slow-motional EPR spectra for spin-probes (especially nitroxide radicals) in partially oriented samples. The main purpose of the program is the simulation of EPR spectrum angular dependences. Both single- and multiprocessor versions are available. The detailed description of all models and approximations used in the program is contained in the following reference: A.Kh.Vorobiev, A.V.Bogdanov, T.S.Yankova, N.A.Chumakova, “Spin probe determination... -
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AM/FA
AM/FA is basic media player with Frequency Analyzer
AM/FA is a simple media player with add-on:Frequency Analyzer. AM/FA can: - play .mp3,mp4,.wav,.aiff,.aifc files, - make a playlist of your files, - view the spectrum of the sound in real time - real view or equalizer view. So if you want to know everything about spectrum, and don't wanna pay for it a lot just download AM/FA. Langugage: JFX/JFC/Processing IDE. Compatiblity: AM/FA is made especially for Linux, but it can run on Windows as well. Important: For Windows AM/FA needs JRE... -
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RTLSDR Scanner
A cross platform Python frequency scanning GUI for rtl-sdr
A cross platform Python frequency scanning GUI for USB TV dongles, using the OsmoSDR rtl-sdr library. In other words a cheap, simple Spectrum Analyser. More information can be found at: http://eartoearoak.com/software/rtlsdr-scanner An installer and standalone versions for Windows are located here: https://github.com/EarToEarOak/RTLSDR-Scanner/releases Sources are available on GitHub: https://github.com/EarToEarOak/RTLSDR-Scanner ** The up to date installer is no longer... -
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Sonic Candle
Generate Video of Frequency Spectrum (bars) from Audio / Music
------------- Notice ------------- As of September 8, 2018, this project has been announced as being out of development and support. See: http://soniccandle.sourceforge.net/ for the full announcement. Given a music file, generates a video file with a visualization of frequency spectrum bars generated for the music. Outputs high-quality, rendered video. Intended for publishing your own music on YouTube and stuff =) Screen Recording how to use: https://www.youtube.com/watch?v... -
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SpeedScope
Spectrum Analyzer Software
SpeedScope 2014 is developed for use with doppler microwave sensor or any other sensor (like ultrasound doppler probe) which requires some kind of FFT processing (actually we do not use FFT but for the sake of simplicity...). Data is collected via PC sound card interface so sensor output parameters need to satisfy sound card input requirements. This application is portable, it does not write anything to registry (or anywhere else). This app does not 'phone home' or collect any user... -
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RGU-MFS
VamPy Mel-Frequency Spectrum Plugin
VamPy plugin for the Mel-Frequency Spectrum approach described in detail in: Horsburgh, B., Craw, S. & Massie, S. (2012). Music-inspired texture representation, Proceedings of the National Conference on Artificial Intelligence (AAAI), pp. 52-58. -
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QuartzCrystal
Electric Behaviour of Crystals and Pierce Crystal Oscillators
The Java applet QuartzCrystal shows the frequency response of quartz crystals and Pierce crystal oscillators. Crystal parameters can be freely choosen. Display is spectrum analyzer-like and shows the amplitude/phase and/or a Nyquist diagram. Crystals can be series resonant or with load capacitance. Adding of spurious resonances is possible. -
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Frequency Spectrum Dump Inputs: mp3, wav, ogg, flac, etc Scriptable, Visualization Output: csv file with the mean magnitudes of 255 frequency bands
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OpenFHSS is a community-based effort that includes schematic, eagle design files, BOM, gerbers, and firmware for a 902-928MHz ISM, 50-channel, FHSS frequency hopping spread spectrum modem. UPDATE 2011-11-27: The discussion forum is open to new users (OpenFHSS Website->forum)
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The Audio-Analyzer project is a set of tools for measuring the frequency response, distortion, and quality of audio equipment. It includes test signal generators and spectrum analyzers.
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For a given signal, pstool calculates a one-sided power spectrum, i.e. the portion of a signal's power falling within given frequency bins. This is done by employing a one-dimensional real-to-complex FFT routine on an MPI cluster.