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Localization of Sound in a Room with Reflecting Walls

The ability of subjects to localize sounds in a typical living room was tested for both direction and distance. A subject was seated in the center of two concentric circular arrays of eight loudspeakers, one having a 1-m and the other a 2-m radius. Eleven different stimuli were used. these were white noise and sinusoids with different temporal envelopoes, a 100-µs pulse, and music. Results show that noise, pulses, and music can be localized very well. Sinusoids with at least one abrupt transition (onset or offset) are localized reasonably well, but sinusoids with slow, 1-s onsets and offsets are localized poorly.


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