In order to improve audio coding performance, excess masking has been employed for the compression of complex audio signals. A new algorithm has been developed to classify and preprocess maskers. A psychoacoustic model is used to estimate simultaneous masking threshold. This masking threshold is used for quantizing audio signal coefficients in the frequency domain. Preliminary test results show improved coding efficiency.
Authors:
Wang, Ye; Vilermo, Miikka
Affiliation:
Nokia Research Center, Speech and Audio Systems Lab., Tampere, Finland
AES Conference:
17th International Conference: High-Quality Audio Coding (September 1999)
Paper Number:
17-021
Publication Date:
September 1, 1999
Subject:
High Quality Audio Coding
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.
To be notified of new comments on this paper you can subscribe to this RSS feed. Forum users should login to see additional options.
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.