3. Basic Representations

1. Waveform

2. Short-time analysis

3. Short-time processing

4. Windowing

5. Signal energy, loudness and decibel

6. Spectrogram and the STFT

7. Autocorrelation and autocovariance

8. Cepstrum and MFCC

9. Linear prediction

10. Fundamental frequency (F0)

11. Zero-crossing rate

12. Deltas and Delta-deltas

13. PSOLA

14. Jitter and shimmer

15. Crest factor (Wikipedia)