| Common | Definitions and helper classes used by the rest of the library | 
| Curves | User-defined mapping functions | 
| ▼Delay utilities | Standalone templated classes for delays | 
| Interpolators | |
| Envelopes and LFOs | LFOs, envelopes and filters for manipulating them | 
| FFT (complex and real) | Fourier transforms (complex and real) | 
| Basic filters | Classes for some common filter types | 
| ▼Multichannel mixing | Utilities for stereo/multichannel mixing operations | 
| Orthogonal matrices | Some common matrices used for audio | 
| Performance helpers | Nothing serious, just some #defines and helpers  | 
| Multi-rate processing | Classes for oversampling/upsampling/downsampling etc | 
| Spectral Processing | Tools for frequency-domain manipulation of audio signals | 
| Window functions | Windows for spectral analysis |