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speech coder

   Also found in: Wikipedia 0.01 sec.
speech coder [′spēch ‚kōd·ər]
(communications)
A device that uses data-compression techniques to convert a high-bit-rate signal resulting from digital pulse-code modulation of speech to a low-rate digital signal that can be transmitted or stored.


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RealSpeak Word uses a new approach to achieve high quality synthesis for predefined words and idioms based on a coding-by-synthesis model rather than the traditional method of recording the audio data and then using a speech coder.
These applications require support for video coders, speech coders, telephony middleware, JBIG standards (Joint Bi-Level Image Experts Group), MP3, software modem- and other DSP-intensive tasks in addition to supporting a real-time operating system, and system and network management tasks which are better served by a RISC processor.
Although there has been no announcement, it is clear that SASL will make new versions of its low-level speech coders, modems and echo canceler applications available for the StarCore DSPs that Motorola and Lucent Technologies are creating, and which will initially use Motorola's M-Core instruction set.
 
 
 
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