A method for designing an allpass chirp for impulse response measurement that ensures a constant signal-to-noise ratio (SNR) in the measurement is presented. By using the background noise and measurement system's frequency responses, a measurement signal can be designed by specifying the group delay trajectory. This signal will have a small crest factor and will be optimally short such that the measured impulse response will have a desired and constant SNR.

Authors: Canfield-Dafilou, Elliot K.; Abel, Jonathan S.
Affiliation: Center for Computer Research in Music and Acosutics (CCRMA), Stanford University, Stanford, CA, USA
AES Convention: 144 (May 2018) Paper Number: 10014
Publication Date: May 14, 2018 Import into BibTeX
Subject: Audio Processing and Effects – Part 1
Permalink: https://www.aes.org/e-lib/browse.cfm?elib=19410

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:   /conv/144/10014.pdf

Start a discussion about this paper!