Browse Prior Art Database

EFFICIENT COMPUTATION OF BIT EXACT RESULTS

IP.com Disclosure Number: IPCOM000009270D
Original Publication Date: 1999-Jun-01
Included in the Prior Art Database: 2002-Aug-14

Publishing Venue

Motorola

Related People

Authors:
Roger Smith Wen Su

Abstract

The international standard ITU G.729A describes a method for compressing and decom- pressing voice signals. Associated with the standard is an unoptimized reference C code which imple- ments it. An optimized implementation of the stan- dard is deemed compliant if any input stream to be compressed or decompressed produces an output stream which is bit-for-bit identical with the output stream produced by the reference code. Although other mechanisms exist for satisfying compliance, bit-exact output is a de facto requirement for com- pliance.