Room response equalization aims at improving the sound reproduction in rooms by applying advanced digital signal processing techniques to design an equalizer on the basis of one or more measurements of the room response. This topic has been intensively studied in the last 40 years, resulting in a number of effective techniques facing different aspects of the problem. This tutorial will review the existing methods following their historical evolution, and discussing pros and cons of each approach with relation to the room characteristics, as well as instrumental and perceptual measures.
Stefania Cecchi is an Associate Professor at the Department of Information Engineerig of Università Politecnica delle Marche (Italy). She received the Laurea degree (with honors) in electronic engineering from the University of Ancona (now University Politecnica delle Marche, Italy) in 2004 and the Ph.D. degree in electronic engineering from the University Politecnica delle Marche (Ancona, Italy) in 2007. She was a Post Doc Researcher at the same university above, from February 2008 to October 2015, and Assistant Professor from November 2015 to October 2018. She is the author or coauthor of several international papers. Her current research interests are in the area of digital signal processing including adaptive and subband algorithms applied to audio processing with particular attention to immersive audio rendering, audio equalization and automotive audio. Dr. Cecchi is a member of the Acoustic Engineering Society (AES), Institute of Electrical and Electronics Engineers (IEEE) and Italian Acoustical Association (AIA).