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Convention Paper

STI Measurements Using a Dual Channel Analyzer

Authors: Højberg, Klaus

AES Convention 81 · Paper 2397 · November 1986

Abstract

The Speech Transmission index is based on the Modulation Transfer Function. The MTF can either be measured directly in the modulation domain, as suggested by T. Houtgast and H.J.M. Steeneken, or calculated from the impulse response. The method described in this paper measured the noise-free impulse response and calculates the MTF according to the definition by M.R. Schoeder. The noise-free MTF is then corrected for the influence of noise by a measurement of the background noise.

Details

Published in
AES Convention 81
AES Convention
81
Paper number
2397
Publication date
November 6, 1986
Session subject
Audio Measurement and Instrumentation
Affiliation
Bruel & Kjaer, Naerum, Denmark (See document for exact affiliation information.)
Type
Convention Paper