Speech processing

Speech processing is the study of speech signals and the processing methods of these signals.

The signals are usually processed in a digital representation whereby speech processing can be seen as the intersection of digital signal processing and natural language processing.

Speech processing can be divided in the following categories:

Speech recognition, which deals with analysis of the linguistic content of a speech signal.
Speaker recognition, where the aim is to recognise the identity of the speaker.
Enhancement of speech signals, e.g. Noise reduction,
Speech coding for compression and transmission of speech. See also Telecommunication.
Voice analysis for medical purposes, such as analysis of vocal loading and dysfunction of the vocal cords.
Artificial voice : the artificial synthesis of speech, which usually means computer generated speech and the speech recognition by computers.