The MPEG Audio AAC Standard [1] uses two MDCT sizes and transition windows in order to adapt these uniform transforms to the signal specifics. Here, we present a new adaptation scheme based on a fixed size MDCT where subband merging is done in order to obtain better temporal resolution on chosen parts of the spectrum. The performances of the proposed approach are evaluated, with respect to the AAC, thanks to an objective measure, which takes into account the temporal masking effect.

Authors: Bimbot, Frederic; Camberlein, Ewen; Philippe, Pierrick
Affiliations: France Télécom R&D; IRISA(See document for exact affiliation information.)
AES Convention: 121 (October 2006) Paper Number: 6894
Publication Date: October 1, 2006
Subject: 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.

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.