| speex.h [code] | Describes the different modes of the codec | 
| speex_bits.h [code] | Handles bit packing/unpacking | 
| speex_buffer.h [code] | |
| speex_callbacks.h [code] | Describes callback handling and in-band signalling | 
| speex_echo.h [code] | Echo cancellation | 
| speex_header.h [code] | Describes the Speex header | 
| speex_jitter.h [code] | Adaptive jitter buffer for Speex | 
| speex_preprocess.h [code] | Speex preprocessor. The preprocess can do noise suppression, residual echo suppression (after using the echo canceller), automatic gain control (AGC) and voice activity detection (VAD) | 
| speex_resampler.h [code] | |
| speex_stereo.h [code] | Describes the handling for intensity stereo | 
| speex_types.h [code] | Speex types | 
 1.5.1