AES E-Library

AES E-Library

Measurement 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 systems (SIMO) where the dominant nonlinearities can be concentrated in a single source adding nonlinear distortion to the input signal. The equivalent input distortion at this source can easily be derived from the measured sound pressure signal by performing a filtering with the inverse transfer response prior to the spectral analysis. This technique reduces the influence of the acoustical environment (room), removes redundant information and simplifies the interpretation. It is also the basis for speeding up distortion measurements, for the prediction of distortion in the sound field and for the detection of noise and other disturbances not generated by the transducer.

AES Convention: Paper Number:
Publication Date:

Click to purchase paper as a non-member or login as an AES member. If your company or school subscribes to the E-Library then switch to the institutional version. If you are not an AES member and would like to subscribe to the E-Library then Join the AES!

This paper costs $33 for non-members and is free for AES members and E-Library subscribers.

Learn more about the AES E-Library

E-Library Location:

Start a discussion about this paper!

AES - Audio Engineering Society