The Speech Transmission Index (STI) is becoming the universally accepted method for measuring the potential intelligibility of a sound system. However, a number of operating conditions and sound system characteristics seem not to be taken into account by current STI techniques. This paper highlights a number of these conditions and discusses possible modifications to the STI in order to improve its potential use and accuracy. In particular it is shown that frequency response anomalies and restricted system bandwidth can lead to erroneous results under low noise, and reverberant conditions.
Author:
Mapp, Peter
Affiliation:
Peter Mapp Associates, Colchester , UK
AES Conference:
21st International Conference: Architectural Acoustics and Sound Reinforcement (June 2002)
Paper Number:
000094
Publication Date:
June 1, 2002
Subject:
Architectural Acoustics & Sound Reinforcement
Click to purchase paper as a non-member or you can login as an AES member to see more options.
No AES members have commented on this paper yet.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.