# speex Directory Reference

## Files
file | pcm_wrapper.h
| PCM encoding wrapped as a Speex mode.

file | speex.h
| Describes the different modes of the codec.

file | speex_bits.h
| Handles bit packing/unpacking.

file | speex_callbacks.h
| Describes callback handling and in-band signalling.

file | speex_echo.h
| Echo cancellation.

file | speex_header.h
| Describes the Speex header.

file | speex_jitter.h
| Adaptive jitter buffer for Speex.

file | speex_preprocess.h
| Speex preprocessor.

file | speex_stereo.h
| Describes the handling for intensity stereo.

file | speex_types.h
| Speex types.