direkt zum Inhalt springen

direkt zum Hauptnavigationsmenü

Sie sind hier

TU Berlin

Inhalt des Dokuments

Search in All Publications

Search for publications

All Publications by GRK Members

Identification of stimulus cues in narrow-band tone-in-noise detection using sparse observer models
Citation key Schoenfelder2013
Author Schönfelder, V., and Wichmann, F.
Pages 447-463
Year 2013
Journal Journal of the Acoustic Society of America
Volume 134
Number 1
Month July
Abstract The classical psychophysical paradigm of narrow-band tone-in-noise (TiN) detection has been under investigation for more than 70 years, yet no conclusive answer has been given as to which auditory stimulus features listeners rely on. Here, individual observer models were fit to a large trial-by-trial behavioral data set using a modern statistical analysis procedure. Relative perceptual weights were estimated for a set of auditory features including sound energy, representations of the spectra as well as summary statistics of both fine structure and envelope. The fitted models captured the behavior of all listeners on a single-trial level. The estimated perceptual weights were stable across signal levels. They suggest that responses of observers depended on stimulus energy, though that cue was not always dominant, as well as on band-pass detectors applied to the fine structure spectrum. A subset of the observers exhibited an additional dependence on sound envelope which was best captured by two envelope descriptors: average slope and extrema count. For some listeners, a concurrent analysis of sequential dependencies showed interactions between the current and several preceding decisions. There was no unique answer regarding the strategy individual listeners employ during TiN detection, and implications thereof are discussed.
Link to original publication Download Bibtex entry

To top

Import Publication

Upload BibTeX

Export all entries to BibTex

Zusatzinformationen / Extras

Quick Access:

Schnellnavigation zur Seite über Nummerneingabe