Perceptual Effects of Dynamic Range Compression in Popular Music Recordings - January 2014
Accurate Calculation of Radiation and Diffraction from Loudspeaker Enclosures at Low Frequency - June 2013
New Measurement Techniques for Portable Listening Devices: Technical Report - October 2013
Systematic & Common Errors in Sound System STI and Intelligibility Measurements
STI or its derivatives (RaSTI and STIPa) have become the internationally accepted methods for acoustically measuring the potential intelligibility performance of a sound system. However, in practice, many of the measurements carried out in the field, to either verify or ascertain sound system and Voice Alarm intelligibility performance, are often based on flawed techniques. The paper examines a number of common problems found to affect measurement accuracy. The paper also highlights conditions under which STI and STIPa inherently appear to incorrectly predict intelligibility performance. In particular it is shown that the currently available commercial software programmes and instrumentation fail to correctly predict the performance of sound systems exhibiting irregular or band limited frequency responses when they are operating in reverberant environments under quiet (i.e. high signal to noise ratio) conditions.
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.