Modeling human sound-source localization with the auditory modeling toolbox

Majdak Piotr, Robert Baumgartner, Marko Takanen, Olli Santala, Ville Pulkki, Peter Søndergaard

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

Spatial perception of sound sources involves different mechanisms in the auditory system, especially when it comes to localizing sound sources in the horizontal (left-right) or in the sagittal planes (front-back and top-down). Recently, a model for the perception of sound sources in the horizontal plane has been introduced (Takanen et al., 2014, Hear Res 309:147-163). It is based on the count-comparison analysis of binaural signals that is motivated by the spike-rate encoding of directional cues found in the mammalian auditory pathways. It results in an activation map visualizing the prediction of the perceived horizontal direction of sounds. Further, a model aiming at predicting the localization performance in sagittal planes has been introduced (Baumgartner et al., 2013, in The Technology of Binaural Listening, editor J. Blauert, [Springer, Berlin], Ch. 4, pp. 93-119). It is based on the comparison of processed acoustic signals with an internal template of processed head-related transfer functions and yields a statistical probability for the perceived direction of the source along a sagittal plane. These models can be extensively evaluated and applied because their implementation is publicly available, which is essential for reproducible research. The implementations of the models are available within the auditory modeling toolbox (AMT), an open-source and freely available collection of auditory models. In this contribution, we describe the AMT, the two models, and their implementations within the AMT, showing how to begin modeling human sound-source localization.

Original languageEnglish
Title of host publication21st International Congress on Sound and Vibration 2014, ICSV 2014
PublisherInternational Institute of Acoustics and Vibration (IIAV)
Pages1318-1324
Number of pages7
Volume2
ISBN (Electronic)9781634392389
Publication statusPublished - 2014
MoE publication typeA4 Conference publication
EventInternational Congress on Sound and Vibration - Beijing, China
Duration: 13 Jul 201417 Jul 2014
Conference number: 21

Conference

ConferenceInternational Congress on Sound and Vibration
Abbreviated titleICSV
Country/TerritoryChina
CityBeijing
Period13/07/201417/07/2014

Fingerprint

Dive into the research topics of 'Modeling human sound-source localization with the auditory modeling toolbox'. Together they form a unique fingerprint.

Cite this