Speech Synthesis

Speech synthesis is the artificial production of human speech. A computer system used for this purpose is called a speech synthesizer, and can be implemented in software or hardware. A text-to-speech (TTS) system converts normal language text into speech; other systems render symbolic linguistic representations like phonetic transcriptions into speech.

Synthesized speech can be created by concatenating pieces of recorded speech that are stored in a database. Systems differ in the size of the stored speech units; a system that stores phones or diphones provides the largest output range, but may lack clarity. For specific usage domains, the storage of entire words or sentences allows for high-quality output. Alternatively, a synthesizer can incorporate a model of the vocal tract and other human voice characteristics to create a completely "synthetic" voice output.

The quality of a speech synthesizer is judged by its similarity to the human voice and by its ability to be understood. An intelligible text-to-speech program allows people with visual impairments or reading disabilities to listen to written works on a home computer. Many computer operating systems have included speech synthesizers since the early 1990s.

Sample of Microsoft Sam Sorry, your browser either has JavaScript disabled or does not have any supported player.
You can download the clip or download a player to play the clip in your browser. Microsoft Windows XP's default speech synthesizer voice saying "The quick brown fox jumps over the lazy dog 1,234,567,890 times. soi"

Read more about Speech Synthesis:  History, Synthesizer Technologies, Dedicated Hardware, Speech Synthesis Markup Languages, Applications

Other articles related to "speech, speech synthesis":

The Java Speech API’s Classes and Interfaces
... The different classes and interfaces that form the Java Speech API are grouped into the following three packages javax.speech Contains classes and interfaces for a generic ... javax.speech.synthesis Contains classes and interfaces for speech synthesis ... javax.speech.recognition Contains classes and interfaces for speech recognition ...
Language Software - Human Language Technologies
... teacher is Natural Language Processing (NLP), especially the areas of speech synthesis, speech recognition and parsing ... Speech synthesis has improved immeasurably in recent years ... At word level, speech synthesis is quite effective, the artificial voice often closely resembling a human voice ...
Articulatory Synthesis - Bibliography
... WINDBAG—a vocal-tract analog speech synthesizer ... IEEE Transactions on Audio, Speech, and Language Processing 15 1218-1225 Birkholz P, Jackel D, Kröger BJ (2006) Construction and control of a three-dimensional vocal tract model ... Proceedings of the International Conference on Acoustics, Speech, and Signal Processing (ICASSP 2006) (Toulouse, France) pp ...
Speech Synthesis - Applications
... Speech synthesis has long been a vital assistive technology tool and its application in this area is significant and widespread ... readers for people with visual impairment, but text-to-speech systems are now commonly used by people with dyslexia and other reading difficulties as well as by pre-literate children ... frequently employed to aid those with severe speech impairment usually through a dedicated voice output communication aid ...
Chinese Speech Synthesis
... Chinese speech synthesis is the application of speech synthesis to the Chinese language (usually Standard Chinese) ...

Famous quotes containing the words synthesis and/or speech:

    It is in this impossibility of attaining to a synthesis of the inner life and the outward that the inferiority of the biographer to the novelist lies. The biographer quite clearly sees Peel, say, seated on his bench while his opponents overwhelm him with perhaps undeserved censure. He sees him motionless, miserable, his head bent on his breast. He asks himself: “What is he thinking?” and he knows nothing.
    Andre Maurois (1885–1967)

    Go three days without reading and your speech will become tasteless.
    Chinese proverb.