In a recent work, we reviewed the basics of level detection for dynamic range compression, and presented various tunings of level detector parameters for optimal correspondence with well-known and recently-proposed facts pertaining loudness perception. In the paper, we review key points, and present several extensions. We review the mathematics behind the operation of the popular root-mean-square detector, with special attention paid to the effect of time constant on detector performance. We compare an equal loudness filter, designed in the prior work to compensate for frequency-dependent steady-state loudness perception, to standard weightings. Updated results based on newly standardized loudness contours are also presented.
Author:
Cassidy, Ryan J.
Affiliation:
The Center for Computer Research i n Music and Acoustics and the Department of Electrical Engineering, Stanford University, Stanford, C A
AES Convention:
117 (October 2004)
Paper Number:
6235
Publication Date:
October 1, 2004
Subject:
Psychoacoustics, Perception, and Listening Tests
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.