A maximum-length sequence (MLS) has mathematical properties that makeit very useful as an excitation signal for measurement in audio and acoustics. The pathology of MLS systems when there is distortion of various kinds is explored. The resulting artifacts can falsify a reverberation plot, reduce the distortion immunity of the measurement system, and give rise to spurious reflections in the impulse response, to name a few negative aspects. On the other hand, MLS systems can also allow the determination of the total distortion of an electroacoustic system when excited by a signal of any desired spectrum, and sensitive tests for determining the presence of distortion are possible due to the time-domain separation of linear and nonlinear components.
Author:
Vanderkooy, John
Affiliation:
Department of Physics, University of Waterloo, Waterloo, Ont., Canada
JAES Volume 42 Issue 4 pp. 219-231; April 1994
Publication Date:
April 1, 1994
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.