IMPLEMENTATION OF G.726 ADPCM ON TMS320C62XX DSP

ADPCM (Adaptive Differential Pulse Code Modulation) is a widely used voice coding standard for communications links within the worldwide telecommunications network. Within the ITU (International Telecommunication Union) several standards are defined, of which the two most commonly used are G.721 and G.726. G.726 is a superset of G.721, and is used in the rest of this document. The G.726 standard is used for Digital Cordless Telephony, Radio/Wireless Local Loop, and Pair-Gain.

Texas Instruments TMS320C62xx processors are well suited to performing voice compression for multi-channel G.726 applications, and this application note puts emphasis on base-station design for all of the above systems.

This application report is designed to be used with the Texas Instruments G.726 TMS320C62xx software package and the ITU recommendation G.726.

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