chapter
4 Pages

Part II: Speech Processing

W ITHTHE ADVENT OF CHEAP, HIGH-SPEED PROCESSORS, and with the ever-decreas-ing cost of memory, the cost of speech processing has been driven down to the point whereit can be (and has been) embedded in almost any system, from a low-cost consumer product (e.g., solid-state digital answering machines, voice-controlled telephones, etc.), to a desktop application (e.g., voice dictation of a first draft quality manuscript), to an application embedded in a voice or data network (e.g., voice dialing, packet telephony, voice browser for the Internet, etc.). It is the purpose of this part of the handbook to provide discussions of several of the key technologies in speech processing and to illustrate how the technologies are implemented using special-purpose digital signal processor (DSP) chips or via standard software packages running on more conventional processors.