Sonic Visualiser v2.4.1

Freeware
Vista / Win10 / Win7 / Win8 / WinXP

Description
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Sonic Visualiser is a tool that you can use to study a musical recording.

It could be useful to musicologists, archivists, signal-processing researchers. For others, it provides a very interesting look at what lies inside an audio file.

Key Features:

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.

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