![]() add ( 'plex', od2 ( mag, phase )) # Phase 2: compute the actual onsets locations onsets = Onsets () onsets_hfc = onsets ( # this algo expects a matrix, not a vector essentia. add ( 'features.hfc', od1 ( mag, phase )) pool. for frame in FrameGenerator ( audio, frameSize = 1024, hopSize = 512 ): mag, phase, = c2p ( fft ( w ( frame ))) pool. Pool () # Computing onset detection functions. od1 = OnsetDetection ( method = 'hfc' ) od2 = OnsetDetection ( method = 'complex' ) # Let's also get the other algorithms we will need, and a pool to store the results w = Windowing ( type = 'hann' ) fft = FFT () # this gives us a complex FFT c2p = CartesianToPolar () # and this turns it into a pair (magnitude, phase) pool = essentia. # Loading audio file audio = MonoLoader ( filename = './././test/audio/recorded/hiphop.mp3' )() # Phase 1: compute the onset detection function # The OnsetDetection algorithm provides various onset detection functions. You can then access particular values in the pools: ![]()
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