FreeG
Filed Under: Windows/Audio Analysis &bull Mac/Audio Analysis | report broken link
The Sonalksis FreeG is an intuitive tool that can be used for a variety of applications to increase the control and flexibility of the signal flow in the insert chain of the host.
To make the workflow and the overview of the signal processing easier, FreeG provides extended, customizable metering features and settings.
When working with digital audio, lack of fine metering and extended signal flow control in the host is a common issue. The intentions with FreeG is to improve the workflow in the host by providing these features in the insert chain.
By providing the possibilites of extended control of amplitude, phase and pan (stereo version) in the insert chain as well as fine metering, with user configurable industry standard parameter options, the range of applications for FreeG is almost only limited to the context of the actual usage and of course, the insert chain.
Sonic Visualizer
Filed Under: Linux/Audio Analysis &bull Windows/Audio Analysis &bull Mac/Audio Analysis | report broken link
Sonic Visualiser is an application for viewing and analysing the contents of music audio files.
The aim of Sonic Visualiser is to be the first program you reach for when want to study a musical recording rather than simply listen to it.
As well as a number of features designed to make exploring audio data as revealing and fun as possible, Sonic Visualiser also has powerful annotation capabilities to help you to describe what you find, and the ability to run automated annotation and analysis plugins in the Vamp analysis plugin format – as well as applying standard audio effects.
We hope Sonic Visualiser will be of particular interest to musicologists, archivists, signal-processing researchers and anyone else looking for a friendly way to take a look at what lies inside the audio file.
Sonic Visualiser contains features for the following:
- Load audio files in WAV, Ogg and MP3 formats, and view their waveforms.
- Look at audio visualisations such as spectrogram views, with interactive adjustment of display parameters.
- Annotate audio data by adding labelled time points and defining segments, point values and curves.
- Overlay annotations on top of one another with aligned scales, and overlay annotations on top of waveform or spectrogram views.
- View the same data at multiple time resolutions simultaneously (for close-up and overview).
- Run feature-extraction plugins to calculate annotations automatically, using algorithms such as beat trackers, pitch detectors and so on.
- Import annotation layers from various text file formats.
- Import note data from MIDI files, view it alongside other frequency scales, and play it with the original audio.
- Play back the audio plus synthesised annotations, taking care to synchronise playback with display.
- Select areas of interest, optionally snapping to nearby feature locations, and audition individual and comparative selections in seamless loops.
- Time-stretch playback, slowing right down or speeding up to a tiny fraction or huge multiple of the original speed while retaining a synchronised display.
- Export audio regions and annotation layers to external files.
FreqAnalyst
Filed Under: Windows/Audio Analysis | report broken link
Blue Cat’s FreqAnalyst is a free spectrum analyzer plugin that lets you monitor the spectral content of your audio signal in real time. It has been designed to provide extreme smoothness and high resolution for both time and frequency: unlike most spectrum analyzers, Blue Cat’s FreqAnalyst is able to display continuous variations even with a very high frequency resolution, thanks to its unique smooth interpolation algorithms.
Most aspects of the audio to frequency display conversion can be managed, which lets you total control over the monitoring. A special thresholding system has been developed to help you see the important parts of the spectrum easily. In case you need extra precision in a particular frequency range, you can zoom the display and check the part of the graph you are interested in.
As shown in the screenshots, you can use the new opacity management feature to make the plug-in window transparent and see what is behind: forget about your multiple display setup, you do not need it anymore! You can now check the spectrum of your mix and see your audio tracks behind. This feature is also particularly useful when you want to compare the spectrum of two tracks: just stack your two FreqAnalyst windows and see the difference!
MultiInspectorFree
Filed Under: Windows/Audio Analysis &bull Mac/Audio Analysis | report broken link
Third octave 31 band spectral analyzer with the ability to display the analysis result of other instances in the same window.
MultiInspectorFree is a 31 band spectral analyzer designed to be used in a multitrack environment. Based on the technology of FaderWorks to handle multiple dependent instances of the same plug-in, MultiInspectorFree provides an easy way for simultaneous spectral analysis of several audio signals.
The first instance of MultiInspectorFree behaves like a standard 31 band spectral analyzer. Additional instances automatically send their spectral analysis result to all other instances of MultiInspectorFree. Every editor window of MultiInspectorFree shows the same content. Therefore, after opening all necessary plug-in instances it is sufficient to leave just one editor window open. The width and the color of the level bars are adjusted according to the current number of instances.
MultiInspectorFree incorporates a standard third octave frequency analyzer. The center frequencies of the bands are based on the ISO 266:1997 standard (20 Hz to 20 kHz). Pink noise will appear flat in the frequency spectrum.
MultiInspectorFree supports up to 4 instances at a sample rate of 44.1 kHz.
For spectral analysis with more options you may want to take a look at MultiInspector.
MultiInspectorFree is available as a plug-in for Windows (VST only) and Mac OS X (VST and AU, both Universal Binary).
bs-spectrum
Filed Under: Windows/Audio Analysis &bull Mac/Audio Analysis | report broken link
bs-spectrum is a spectrum analyzer for Steinberg VST 2.4 , and Apple Audio Units plug-in format.
Praat
Filed Under: Linux/Audio Analysis &bull FreeBSD/Audio Analysis &bull Solaris/Audio Analysis &bull Windows/Audio Analysis &bull Mac/Audio Analysis | report broken link
Praat is a free scientific computer 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. The program also supports speech synthesis, including articulatory synthesis.
Dual Channel FFT
Filed Under: Windows/Audio Analysis | report broken link
Dual Channel FFT is a program that analyses the spectral difference between two measurement points. This can be useful to measure the electro- and acoustical chain during a live performance.
Additionally the program can visualize the processing of VST Plug-ins, export the frequency response to TXT/BMP and export the impulse response to WAV.
Dual Channel FFT is free for non-commercial use.





