... signal 0.5 (b) Octave distribution signal 1 Time 0.5 Octaves 10 11 12 13 (h) Figure 9: Comparison of octave distributions Signals and 2: Rock-like signals, and Signals and 4: Classical-like signals ... stage-by-stage implementation and analysis of three important audio processing tasks, namely, (1) audio compression, (2) audio classification, and (3) securing audio content using TF approaches The ... of Signal Processing to Audio and Acoustics, pp 127–130, 2003 [45] C Xu, N C Maddage, and X Shao, “Automatic music classification and summarization,” IEEE Transactions on Speech and Audio Processing, ...