![]() New session, open piano-scale.wav and play it.sung pitch, although if we zoom in we can quite clearly see sibilance (these frequencies around 10kHz are pretty much the sweet spot for visibility in a 44.1kHz waveform) Continue until the vocal starts, and observe that we can see very little that relates to e.g.signal voltage and speaker cone deflection Notice the different shapes in waveform resulting from different types of synthetic percussive sound (low-frequency kick drum / higher frequency cymbal-type sounds) - refer back to Christophe's notes about correspondence between e.g.Return to the start and zoom in (using the zoom wheel, but noting that the mouse wheel also works).Play from the start, just to get an idea what it sounds like.Show dragging through the file using Navigate tool, and also using the overview at bottom.Start Sonic Visualiser and open A Friendly Warning (very severe, synthetic 80s pop song by Act).Audio Indexing and Search in Python (IPython Notebook) (CR, 40 min)ĭirect links to the audio files themselves are included here, but for copyright reasons they won't necessarily persist beyond the workshop! Sonic Visualiser - hands on with waveform and spectrograms ¶.Feature Extraction using Vamp Plugins in Python (IPython Notebook) (CC, 40 min).Sonic Visualiser - hands on with Vamp plugins (CC, 15 min). ![]()
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