A system for dividing time-coincident stereo audio signals into directional segments is presented. The purpose is to give greater flexibility in the presentation of spatial information when two-channel audio is reproduced. For example, different inter-channel time shifts could be introduced for segments depending on their direction. A novel aspect of this work is the use of complex wavelet packet analysis, along with ‘best basis’ selection, in an attempt to identify time-frequency atoms which belong to only one segment. The system is described, with reference to the relevant underlying theory and the quality of its output for the best bases from complex wavelet packets is compared with methods based on more established analysis and processing methods.
Author:
Wells, Jeremy
Affiliation:
University of York, York, UK
AES Convention:
130 (May 2011)
Paper Number:
8436
Publication Date:
May 13, 2011
Subject:
Source Enhancement
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.