Sonic Visualiser v.1.7.1 (freeware)

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  Feb 7, 2010

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 as possible, Sonic Visualiser also has powerful annotation capabilities to help describe what you find, and the ability to run automated annotation and analysis plugins.

Features include sophisticated spectrogram views; multi-resolution waveform and data displays; manual annotation of time points and curves; measurement capabilities from spectrogram and spectrum; playback at any speed; looping and playback of discontiguous selections; ability to apply standard audio effects and compare the results with their inputs; and support for onset detection, beat tracking, structural segmentation, key estimation and many other automated feature extraction algorithms via Vamp audio analysis plugins.

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.
Sonic Visualiser cannot support VST plugins directly because Steinberg's VST license is incompatible with Sonic Visualiser's GPL license. Windows and OS/X users can get limited support using the Audacity VST Enabler, and Linux users can try dssi-vst.

Visit: Sonic Visualiser



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