In the piston range of a loudspeaker the sound pressure at a distant point is related to the amplitude of vibration of the diaphragm by a simple expression. The amplitude of vibration of the piston can be measured easily with a traveling microscope at different frequencies and related to the response. Since reflected waves have little effect on the amplitude of vibration, accurate results can be obtained even in reverberant environments. The difficulty in measuring the reduced amplitude at higher frequencies imposes an upper frequency limit on this method of measurement.
Authors:
Nagaraj, G.; Zacharia, K. P.
Affiliation:
School of Electronics and Communication Engineering, Anna University, Madras, India
JAES Volume 42 Issue 7/8 pp. 588-589; July 1994
Publication Date:
July 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.