Speech processing is the study of speech signals and the processing methods of these signals.
The signals are usually processed in a digital representation, so speech processing can be regarded as a special case of digital signal processing, applied to speech signal.
It is also closely tied to natural language processing (NLP), as its input can come from / output can go to NLP applications. E.g. text-to-speech synthesis may use a syntactic parser on its input text and speech recognition's output may be used by e.g. information extraction techniques.
Speech processing can be divided into 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 a 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
- Speech impediment
External links
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- Language Technologies Institute at CMU
- Language Technologies Research Center at IIIT Hyderabad, India
- Center for Language and Speech Processing at JHU
- Center for Research in Urdu Language Processing at FAST-NU
- Spoken Language Processing Group at Columbia University, New York
- Speech Processing Group
- Speech Processing Group at the Laboratory of Applied Physics
- Speech and Hearing Group at University of Sheffield
- Speech and Language Processing
- Speech Processing
- Speech Processing Discussion Group
- Philips Speech Processing
- Philips Speech Recognition Systems
- IDIAP Research Institute Speech Processing
- Nuance Communications
- Crescendo Speech Processing for Healthcare
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