The effect of varying the frequency-warping coefficient (lambda) on localisation and discrimination performance was investigated in two experiments. Cochlear modeling was also conducted to investigate the difference between cochlear output for warped and linear frequency stimuli. Both methods suggest that lambda values greater than 0.65 are not optimal for auditory applications. The optimal lambda values found using these methods (0.47, 0.55 and 0.24 for localisation, discrimination and cochlear modeling, respectively) are lower than the value that best fits the Bark scale (0.77). It is recommended that optimal lambda values be determined by psychophysical evaluation.
Authors:
Senova, Melis; McAnally, Ken; Martin, Russell
Affiliations:
School of Biophysical Sciences and Electrical Engineering, Swinburne University of Technology, Hawthorn, Australia ; Aeronautical and Maritime Research Laboratory, Defence Science and Technology Organisation, Melbourne, Australia(See document for exact affiliation information.)
AES Conference:
22nd International Conference: Virtual, Synthetic, and Entertainment Audio (June 2002)
Paper Number:
000219
Publication Date:
June 1, 2002
Subject:
Virtual, Synthetic and Entertainment Audio
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.