A modular multiprocessor system and its application to real-time speech coding

Author

Gluth, R. ; Heute, U.

Author_Institution

Erlangen-Univ., Nurnberg, West Germany

fYear

1988

fDate

7-9 June 1988

Firstpage

1565

Abstract

Many multiple-digital-signal-processor (DSP) systems are not flexible enough to incorporate both additional tasks and new DSP elements. A possible philosophy for a universal´ system without these drawbacks is developed. Basic tasks are defined very generally. They are mapped on general basic system elements: processing units, communication channels, processing control, and real-time interfaces. The restrictions for the actual implementation of each element are reduced to the necessary minimum, i.e. a communication standard. A realized system of this type is presented, based on a certain DSP board, but with other units and tasks easily inserted. A sample application in speech coding that utilizes these features is shown: a 14.5 kb/s real-time speech codec.<>

Keywords

codecs; computerised signal processing; encoding; multiprocessing systems; real-time systems; signal processing equipment; speech analysis and processing; telecommunications computing; 14.5 kbit/s; DSP board; communication standard; computerised signal processing; modular multiprocessor system; multiple-digital-signal-processor; real-time interfaces; real-time speech coding; speech codec; Communication channels; Communication standards; Communication system control; Control systems; Digital signal processing; Multiprocessing systems; Process control; Real time systems; Speech codecs; Speech coding;

fLanguage

English

Publisher

ieee

Conference_Titel

Circuits and Systems, 1988., IEEE International Symposium on

Conference_Location

Espoo, Finland

Type

conf

DOI

10.1109/ISCAS.1988.15230

Filename

15230