Audio Signal Processing, Signal, Digital Signal Processing, Amplitude, Machine Learning.
[1] https://medium.com/@stephenhartzell/digital-signal-processing-in-one-lesson-a2f4f64305bf [2] https://towardsdatascience.com/understanding-audio-data-fourier-transform-fft-spectrogram-and-speech-recognition-a4072d228520 Other References: [1] https://en.wikipedia.org/wiki/Sine_wave [2]