Auditory Spectro-Temporal Pattern Analysis.
Abstract
The long-term aim of this project is a better understanding of auditory processes which use across frequency or across-ear temporal envelope difference cues to aid performance. Specific areas of investigation include comodulation masking release (CMR), the masking-level difference (MLD), temporal resolution, and the processing of amplitude and frequency modulation.' The goal of the first proposed experiment is to examine the possible relation between CMR and auditory phenomena related to auditory scene analysis; the goal of the second experiment is to examine the possible relation between CMR and the MLD for narrowband noise maskers; the goal of the third experiment is to determine the extent to which across-frequency correlation of temporal envelope may influence gap detection for wideband stimuli; the goal of the fourth experiment is to determine whether masking release can be derived from cues based upon across-frequency coherence of frequency modulation; the goal of the fifth experiment is to examine a modulation masking phenomenon related to frequency modulation. The tasks will be signal detection in masking noise, temporal gap detection, and the detection of frequency modulation. Testing will be performed in a sound-treated room, using a 3AFC adaptive procedure.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 12, 1992
- Accession Number
- ADA253037
Entities
People
- Joseph W. Hall
Organizations
- University of North Carolina at Chapel Hill