AES Journal Forum

Measurement and Application of Equivalent Input Distortion

Document Thumbnail

A new technique for measuring nonlinear distortion in transducers is presented which considers a priori information from transducer modeling. Transducers are single-input, multiple-output (SIMO) systems where the dominant nonlinearities can be concentrated in a single source, adding nonlinear distortion to the input signal. Assessing the distortion at the source results in more meaningful data describing the large-signal behavior of loudspeakers independent of the linear transfer response. Since the distortion source is not accessible for direct measurements, the equivalent input distortions are calculated from the sound pressure output. This technique makes it possible to predict the distortion in the sound field, to investigate the influence of the acoustical environment (room), and to separate noise and other disturbances not generated by the transducer.

JAES Volume 52 Issue 9 pp. 931-947; September 2004
Publication Date:

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

RSS Feed 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:

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.

AES - Audio Engineering Society