Application of Neural Network Algorithm Based on Principal Component Image Analysis in Band Expansion of College English Listening

<div>Subjective preference auditory test of PCA-NN and other mainstream audio extension algorithms. (a) La and PCA-NN. (b) Le and PCA-NN. (c) EHBE and PCA-NN.</div>

Computational Intelligence and Neuroscience

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Figure 9

Figure 9: Application of Neural Network Algorithm Based on Principal Component Image Analysis in Band Expansion of College English Listening 