An alternative approach to psychoacoustical masking modelling is to model such phenomena as suppression, spreadof-excitation and IHC adaptation, which are among the underlying physiological phenomena for psychoacoustically observed masking. This paper proposes a physiologically grounded model for threshold estimation. It includes a reconfigurable non-uniform filterbank to simulate a "cochlear amplifier" and an associated suppression effect and a digital reservoir IHC model to account for their adaptive responses. It allows designing coders, which retain enough information to create an identical excitation pattern in the auditory nerve compared to that of the original signal. As our model is based on the masking physiology, its application is justified in the complex audio signals case.

Authors: Ivanov, Alexei V.; Petrovsky, Alexander A.
Affiliations: Computer Engineering Department at the Belarusian State University of Informatics and Radioelectronics, Minsk, Belarus ; Real-Time Systems Department at the Bialystok Technical University, Bialystok, Poland(See document for exact affiliation information.)
AES Convention: 116 (May 2004) Paper Number: 6082
Publication Date: May 1, 2004
Subject: Psychoacoustics, Perception, and Listening Tests

Click to purchase paper as a non-member or you can login as an AES member to see more options.

No AES members have commented on this paper yet.

Subscribe to this discussion

To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.

Start a discussion!

If you would like to start a discussion about this paper and are an AES member then you can login here:
Username:
Password:

If you are not yet an AES member and have something important to say about this paper then we urge you to join the AES today and make your voice heard. You can join online today by clicking here.