Spectrograms

Specview is a Java GUI_based application for 1-D spectral visualization and analysis of astronomical spectrograms generated by a variety of observatories and instruments. Note that we no longer provide file distributions of this software. You are encouraged to visit the specview web site... Platforms: Windows, Mac, Linux

FreqTweak is a tool for FFT-based realtime audio spectral manipulation and display. It provides several algorithms for processing audio data in the frequency domain and a highly interactive GUI to manipulate the associated filters for each. It also provides high-resolution spectral displays in... Platforms: *nix

Specview is a Java GUI_based application for 1-D spectral visualization and analysis of astronomical spectrograms generated by a variety of observatories and instruments. Platforms: *nix

Luscinia was developed as an accessible and Open Source software for archiving and analyzing field sound recordings (especially of animals). It incorporates an interface to a database, spectrogram measurement algorithms, sound comparison algorithms, and statistical analysis. Luscinia provides... Platforms: Windows

Praat (also the Dutch word for "talk") is a free scientific software program for the analysis of speech in phonetics. It has been designed and continuously developed by Paul Boersma and David Weenink of the University of Amsterdam. It can run on a wide range of operating systems, including... Platforms: Mac

Praat (also the Dutch word for "talk") is a free scientific software program for the analysis of speech in phonetics. It has been designed and continuously developed by Paul Boersma and David Weenink of the University of Amsterdam. It can run on a wide range of operating systems, including... Platforms: Linux

The waveform suite is designed to allow easy data retrieval from a variety of sources and to make basic waveform research quick and easy. It is a toolset that allows the creation of more sophisticated programs without having to be concerned with all details. Features include: * History feature... Platforms: Matlab

Speech analysis and parameter extractionShort-term analysis, frames and windowsTime-domain analysis: energy, zero-crossings, statistic parameters, autocorrelationFrequency-domain analysis: spectra and spectrogramsCepstral analysisLinear prediction analysisPitch and formant estimationto run the... Platforms: Matlab

RF Explorer is an affordable Handheld Spectrum Analyzer designed from scratch to be a sort of Swiss Army Knife for the specific needs of ISM band digital communication. Depending on the model and (optional) expansion board you'll be able to cover all ISM bands. The iRF Explorer application... Platforms: Mac