Speech processing - Definition

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.
• Speech synthesis: the artificial synthesis of speech, which usually means computer generated speech.

See also: Audio signal processing, Linguistics, Phonetics, Utterance, Speech signal processing

External links

• Center for Language and Speech Processing at JHU  (http://www.clsp.jhu.edu)
• Speech Processing Group (http://gps-tsc.upc.es/veu/)
• Voyce Security Systems (http://www.voice-security.com)
• Speech Processing Group at the Laboratory of Applied Physics (http://www.tik.ee.ethz.ch/~spr/)
• Speech and Language Processing  (http://www.cs.colorado.edu/~martin/slp.html)
• Speech Processing (http://www.ee.ic.ac.uk/hp/staff/dmb/courses/speech/speech.htm)