Fig. 4From: Convolutional neural networks for the classification of guitar effects and extraction of the parameter settings of single and multi-guitar effects from instrument mixesSpectrogram of an audio sample at 0 dB mixing volume using distortion with gain set to 0.15 and tone set to 0.8 after normalization of the dataset as explained in Section 2.2 without (top) additional noise, i.e., \(\alpha = 0\), and with (bottom) additional noise with \(\alpha = 0.001\) and \(\alpha\) as explained in Section 2.3.2. The noise is noticeable mostly at low magnitudesBack to article page