Speech processing

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 recognize the identity of the speaker.
* Enhancement of speech signals, e.g. audio noise reduction,
* Speech coding, a specialized form of data compression, is important in the telecommunication area.
* 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.
* Speech enhancement: enhancing the perceptual quality of speech signal by removing the destructive effects of noise, limited capacity recording equipment, impairments, etc.

See also

* Audio signal processing
* Linguistics
* Phonetics
* Utterance
* Speech signal processing
* Packet Loss Concealment

External links

* [http://www.speech.cs.cmu.edu Language Technologies Institute at CMU]
* [http://speech.iiit.ac.in Language Technologies Research Center at IIIT Hyderabad, India]
* [http://www.clsp.jhu.edu Center for Language and Speech Processing at JHU ]
* [http://www.crulp.org Center for Research in Urdu Language Processing at FAST-NU ]
* [http://www.cs.columbia.edu/speech Spoken Language Processing Group at Columbia University, New York]
* [http://gps-tsc.upc.es/veu/ Speech Processing Group]
* [http://www.tik.ee.ethz.ch/~spr/ Speech Processing Group at the Laboratory of Applied Physics]
* [http://www.dcs.shef.ac.uk/spandh Speech and Hearing Group at University of Sheffield]
* [http://www.cs.colorado.edu/~martin/slp.html Speech and Language Processing ]
* [http://www.ee.ic.ac.uk/hp/staff/dmb/courses/speech/speech.htm Speech Processing]
* [http://www.dsprelated.com/groups/speechcoding/1.php Speech Processing Discussion Group]
* [http://www.philips.com/dictation Philips Speech Processing]
* [http://www.speechrecognition.philips.com/index.asp Philips Speech Recognition Systems]
* [http://www.idiap.ch/speech-processing.php IDIAP Research Institute Speech Processing]
* [http://www.nuance.com Nuance Communications]
* [http://www.crescendo.com/en/speech_recognition.php Crescendo Speech Processing for Healthcare]


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