ITDs depend on low frequencies and yet white noise encompasses all frequencies. How can researchers who use white noise, accurately distinguish the directional cues (ITDs/ ILDs) of a listener ? I came across some research last night which argued that white noise eliminates the precedence effect. As the precedence effect strengthens a persons sense of localisation, what is the point in consciously reducing it ?! I've read a lot of literature regarding the use of white noise in sound localisation experiments, but very little in justifying it. Any ideas, feedback etc much appreciated.
Thank you.
Hi Kevin, have a look of this PhD thesis:
Mattes, Symeon (2016) Perceptual models for sound field analysis and sysnthesis. University of Southampton, Engineering and the Environment, Doctoral Thesis , 344pp.
http://eprints.soton.ac.uk/397216/
The justification for using white noise, according to Mattes (2016), appears to be its neutrality in the perceptual experience of the subject.
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