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Convention Paper

Measurements of Logatom Intelligibility in the Digital Chains with Delta Modulation Coding

Authors: Basciuk, Kazimierz; Brachmanski, Stefan; Majewski, Wojciech; Myslecki, Wojciech

AES Convention 104 · Paper 4707 · May 1998

Abstract

This paper presents the results of measurements of speech intelligibility in the digital telecommunication channels with delta modulation coding. Our research included comparative subjective measurements carried out with a traditional intelligibility test and a new fully automatic, modified intelligibility test with forced choice (MIT-FC). The experiments were performed for various codecs and channel capacities and with white additive noise introduced in digital channel between coder and decoder. The results proved that both tests rank the investigated channels consistently and it is possible to predict or recalculate MIT-FC to traditional test scores and vice versa.

Details

Published in
AES Convention 104
AES Convention
104
Paper number
4707
Publication date
May 6, 1998
Session subject
Quality Evaluation of Sound Systems
Affiliation
Wroclaw University of Technology, Wroclaw, Poland (See document for exact affiliation information.)
Type
Convention Paper