Building a CNN model from scratch: https://www.youtube.com/watch?v=ZN6P_GEJ7lk&list=PLeo1K3hjS3utJFNGyBpIvjWgSDY0eOE8S&index=3 Understanding the mel spectrogram: https://medium.com/analytics-vidhya/understanding-the-mel-spectrogram-fca2afa2ce53 Lmk if these are helpful enough