Abstract
Horizontal localization experiments are used to evaluate the listener's ability to locate the position of a sound source, and determine how signal characteristics affect this ability. These experiments generate circular, bimodal, and repeated data that are challenging to statistically analyze. A two-part mixture of wrapped Cauchys is proposed for these data, with the effects of signal type and position on localization bias, precision, and front-back confusion modeled using regression. The model is illustrated using mid- (1.0-2.0 kHz) and high- (3.0-6.0 kHz) frequency narrow band noises localization collected among ten normal hearing listeners.
| Original language | English |
|---|---|
| Pages (from-to) | EL229–EL235 |
| Number of pages | 7 |
| Journal | The Journal of the Acoustical Society of America |
| Volume | 129 |
| Issue number | 6 |
| Early online date | 11 May 2011 |
| DOIs | |
| Publication status | Published - Jun 2011 |
Keywords
- acoustic stimulation
- audiometry
- auditory pathways/physiology
- auditory perception
- auditory threshold
- bias
- humans
- models, statistical
- psychoacoustics
- regression analysis
- signal detection, psychological
- sound localization