Sonic Visualiser is an application for viewing and analysing the contents of music audio files. With Sonic Visualiser, Study a musical recording rather than simply listen to it. It can load audio files in WAV, Ogg and MP3 formats, and view their waveforms and look at audio visualizations such as spectrogram views, with interactive adjustment of display parameters. You can annotate audio data by adding labeled time points and defining segments, point values and curves and overlay annotations on top of one another with aligned scales, and overlay annotations on top of waveform or spectrogram views. It provides the best available core waveform and spectrogram audio visualisations for use with substantial files of music audio data.