A new computerized production testing facility for measuring loudspeaker drive units and systems is described. Unit and sound impulse responses are measured directly in a semi-anechoic environment, and a fast Fourier transform analyzer is used to calculate and display the corresponding frequency response. All frequency response curves are stored on a magnetic disk and special software routines, which enable drive units to be matched for shape and sensitivity to within 0.5 dB, are described. The precautions necessary for the design of the measuring environment and the equipment in order to achieve the desired accuracy are discussed.
Author:
Fincham, Laurie R.
Affiliation:
KEF Electronics Limited, Maidstone, Kent, UK
JAES Volume 27 Issue 12 pp. 970-974; December 1979
Publication Date:
December 1, 1979
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.