Because of their relatively low sensitivity, electret headphones require high signal voltages to generate the customary sound pressure levels in the ear. An electronic amplifier for producing such signal voltages is described. For an output equivalent of 110 dB SPL in an artificial ear, the harmonic distortion of the amplifier was in the range of 0.2%, which was lower than the distortion of push-pull electret headphones. The distortion characteristic, particularly at low frequencies, was superior to that of the commonly used transformers.

Authors: Kröning, Manfred; Lerch, Richard; Zahn, Rolf
Affiliation: Institut fiir Elektroakustik, Technische Hochschule Darmstadt, D-6100 Darmstadt, West Germany
JAES Volume 30 Issue 9 pp. 607-609; September 1982
Publication Date: September 1, 1982

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.