You are currently logged in as an
Institutional Subscriber.
If you would like to logout,
please click on the button below.
Home / Publications / E-library page
Only AES members and Institutional Journal Subscribers can download
Non-stationary noise is notoriously detrimental to room impulse response (RIR) measurements using exponential sine sweeps (ESSs). This work proposes an extension to a method of detecting non-stationary events in ESS measurements that aims at precise localization of the disturbance in the captured signal. The technique uses short-term running cross-correlation as a means to estimate the instantaneous correlation between two sweep signals. Both, the detection threshold and measured correlation, are evaluated on short windows, allowing for accurate analysis of the entire signal. Additional pre-processing steps are applied to improve the robustness of the proposed technique. The approach is tested on various types of simulated and measured non-stationary noise, showing that detection errors did not exceed 23 ms. The method presented in this work increases the robustness of RIR measurements using ESS against non-stationary noise.
Author (s): Prawda, Karolina; Schlecht, Sebastian J.; Välimäki, Vesa
Affiliation:
Aalto University, Espoo, Finland; Aalto University, Espoo, Finland; Aalto University, Espoo, Finland
(See document for exact affiliation information.)
AES Convention: 154
Paper Number:10636
Publication Date:
2023-05-06
Import into BibTeX
Session subject:
Room Acoustics
Permalink: https://aes2.org/publications/elibrary-page/?id=22043
(2847KB)
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 Join the AES. If you need to check your member status, login to the Member Portal.
Prawda, Karolina; Schlecht, Sebastian J.; Välimäki, Vesa; 2023; Short-term Rule of Two: Localizing Non-Stationary Noise Events in Swept-Sine Measurements [PDF]; Aalto University, Espoo, Finland; Aalto University, Espoo, Finland; Aalto University, Espoo, Finland; Paper 10636; Available from: https://aes2.org/publications/elibrary-page/?id=22043
Prawda, Karolina; Schlecht, Sebastian J.; Välimäki, Vesa; Short-term Rule of Two: Localizing Non-Stationary Noise Events in Swept-Sine Measurements [PDF]; Aalto University, Espoo, Finland; Aalto University, Espoo, Finland; Aalto University, Espoo, Finland; Paper 10636; 2023 Available: https://aes2.org/publications/elibrary-page/?id=22043
@article{prawda2023short-term,
author={prawda karolina and schlecht sebastian j. and välimäki vesa},
journal={journal of the audio engineering society},
title={short-term rule of two: localizing non-stationary noise events in swept-sine measurements},
year={2023},
number={10636},
month={may},}