Opens in a new tab

AES E-Library

← Back to search

Convention Paper

Generation and Evaluation of Isolated Audio Coding Artifacts

Authors: Dick, Sascha; Schinkel-Bielefeld, Nadja; Disch, Sascha

AES Convention 143 · Paper 9809 · October 2017

Abstract

Many existing perceptual audio codec standards define only the bit stream syntax and associated decoder algorithms, but leave many degrees of freedom to the encoder design. For a systematic optimization of encoder parameters as well as for education and training of experienced test listeners, it is instrumental to provoke and subsequently assess individual coding artifact types in an isolated fashion with controllable strength. The approach presented in this paper consists of a pre-selection of suitable test audio content in combination with forcing a specially modified encoder into non-common operation modes to willingly generate controlled coding artifacts. In conclusion, subjective listening tests were conducted to assess the subjective quality for different parameters and test content.

Details

Published in
AES Convention 143
AES Convention
143
Paper number
9809
Publication date
October 6, 2017
Session subject
Signal Processing
Affiliation
Fraunhofer Institute for Integrated Circuits IIS, Erlangen, Germany; Silvantos GmbH, Erlangen, Germany; Fraunhofer IIS, Erlangen, Erlangen, Germany (See document for exact affiliation information.)
Type
Convention Paper