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Convention Paper

NMR Measurements on Multiple Generations Audio Coding

Authors: Keyhl, Michael; Herre, Jürgen; Schmidmer, Christian

AES Convention 96 · Paper 3803 · February 1994

Abstract

With the advent of low bit-rate coding in studio and consumer applications, multiple generations (tandem) coding becomes reality. It is reported that depending on the algorithms and bit rates employed, the final sound quality may decrease significantly. The noise-to-mask ratio (NMR) perceptual measurement is capable of evaluating the margin toward audibility. The results of numerous measurements on typical tandem combinations will be presented, and the consequences on multiple generations coding will be discussed.

Details

Published in
AES Convention 96
AES Convention
96
Paper number
3803
Publication date
February 6, 1994
Session subject
Measurement Technique and Instrumentation
Affiliation
Fraunhofer Institut fur Integrierte Schaltungen, Erlangen, Germany (See document for exact affiliation information.)
Type
Convention Paper