AES E-Library

AES E-Library

The Evolution of Chirp-Based Measurement Techniques

Document Thumbnail

Logarithmic chirp signals, also known as exponentially swept sines, have been used to determine the behavior of audio systems for more than two decades. This is done using a nonlinear deconvolution process that evaluates the direct and harmonic responses of a system. Despite the long history of this technique, improvements continue to be discovered and questions remain. Relatively subtle features of these signals are important for making accurate measurements. This paper describes how these signals have been used in measuring audio systems, describes the current state of the art, and clarifies the theoretical foundations and limitations of the technique.

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