AES Store

Journal Forum

Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
4 comments

Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
9 comments

New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
1 comment

Access Journal Forum

AES E-Library

An Evaluation of the Accuracy of MTF-STI Measurements by Comparison to Japanese Three-Syllable Listening Tests

Acceptable speech intelligibility should be a fundamental and important target for every sound system designer. Speech intelligibility is affected not only by the ratio of early energy to reverberant energy, but also by the properties of each individual discrete sound arrival. Evaluation of subjective listening tests using three-syllable word lists shows clearly the effects of loudspeaker directivity, listener location in the room and the acoustic properties of the room. The comparison of the results of listening tests and measured STI values is illustrated using a best-fit logarithmic regression curve. STI values are calculated from a computer generated impulse response. Listening tests are made using a DSP implementation of the same impulse response. The comparison reveals a relationship between the impulse response shape and the STI values. These results show that speech intelligibility can be accurately predicted by MTF-STI measurements because both the time and the energy characteristics of each sound arrival are considered.

Author:
Affiliation:
AES Convention: Paper Number:
Publication Date:
Subject:

Click to purchase paper or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $20 for non-members, $5 for AES members and is free for E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!


 
Facebook   Twitter   LinkedIn   Google+   YouTube   RSS News Feeds  
AES - Audio Engineering Society