Comparative Study of Musical Timbral Variations: Crescendo and Vibrato Using FFT-Acoustic Descriptor

Comparative Study of Musical Timbral Variations: Crescendo and Vibrato Using FFT-Acoustic Descriptor

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A quantitative evaluation of the musical timbre and its variations is important for the analysis of audio recordings and computer-aided music composition.Using the FFT acoustic descriptors Inkjet Original Inks and their representation in an abstract timbral space, variations in a sample of monophonic sounds of chordophones (violin, cello) and aerophones (trumpet, transverse flute, and clarinet) sounds are analyzed.It is concluded that the FFT acoustic descriptors allow us to Soccer - Field Equipment - Accessories distinguish the timbral variations in the musical dynamics, including crescendo and vibrato.

Furthermore, using the Random Forest algorithm, it is shown that the FFT-Acoustic provides a statistically significant classification to distinguish musical instruments, families of instruments, and dynamics.We observed an improvement in the FFT-Acoustic descriptors when classifying pitch compared to some timbral features of Librosa.