Analysis processes

Real-time music information retrieval (MIR) processes are available, thanks to the Gist library. They allow to easily build audio-reactive visuals, by extracting meaningful parameters from a live or pre-recorded audio signal.

Here is a video example of their usage:

Envelope

These processes allow to extract the volume of an audio signal.

Onset detection

These processes allow to detect hits and impacts and are useful for beat detection. The first outlet outputs the detection signal. The second outlet outputs an impulse when an onset is detected.

Pitch detection

These processes allow to estimate the pitch of a monophonic signal (between 150 and 1500 Hz).

Spectral parameters

These processes allow to extract parameters related to the spectrum and the timbre of an audio signal.

Spectrum extraction

These processes convert the input audio signal in an “audio” signal containing the spectra, and are mainly useful for further processing in custom processes.

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