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Perceptual Effects of Synthetic Reverberation on 3-D Audio Systems

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A psychoacoustic investigation was conducted in which five subjects gave localization judgements for headphone-delivered speech stimuli processed by non-individualized head related functions (HRTFs), with and without synthetic spatial reverberation added to the stimuli. Spatial reverberation minimized intracranially heard stimuli, but increased the magnitude of azimuth and elevation localization errors. The results are applicable to 3-D sound systems and spatial sound field processors designed to increase the sensation of auditory spaciousness.

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