RETRACTED: Investigation on the Extraction Methods of Timbre Features in Vocal Singing Based on Machine Learning

<div>Feature extraction effects in different environments before and after optimization. (a) Accuracy in different musical environments. (b) Changes in user satisfaction before and after optimization.</div>

Computational Intelligence and Neuroscience

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Figure 9

Figure 9: RETRACTED: Investigation on the Extraction Methods of Timbre Features in Vocal Singing Based on Machine Learning 