Vibration states of the loudspeaker enclosure were examined by the laser interferometry and hot wire anemometry. According to simple expressions, air pressure in the enclosure is independent on air density. This statement has been tested by the use of gases indicated by very different densities (air, He, SF6), and interferometric data show a strong dependence of vibration states of the enclosure walls on density, when driving frequency increases from 500 Hz up to 1 kHz. The principal reason for a deviation resides in the imaginary part of the Morse impedance exerted by the vibrating gas within the enclosure.

Authors: Djurek, Danijel; Demoli, Nazif
Affiliations: AVAC (Alessandro Volta Applied Ceramics) Laboratory for Nonlinear Dynamics, Zlatar-Bistrica, Croatia; Institute of Physics, Zagreb, Croatia(See document for exact affiliation information.)
AES Convention: 130 (May 2011) Paper Number: 8321
Publication Date: May 13, 2011
Subject: Loudspeakers

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.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

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.