The EST signal processing library provides a set of standard signal processing tools designed specifically for speech analysis. The library includes:
- Windowing (creating frames from a continuous waveform)
- Linear prediction and associated operations
- Cepstral analysis, both via lpc and DFT.
- Filterbank analysis
- Frequency warping including mel-scaling
- Pitch tracking
- Energy and Power analysis
- Spectrogram Generation
- Fourier Transforms
- Pitchmarking (of laryngograph signals)