An earphone system, that enables the listener to hear the sound sources and acoustics of the surroundings as close to real life as possible, are presented. The capture of the surrounding sound is achieved by mounting a microphone on the outside of earphones and simultaneously record and play-back the sound. in this paper measurement with different in-ear recording positions are conducted on nine subjects. The measurements are used for finding the optimal microphone position. The results showed that spatial information can be preserved up to around 4-5 kHz.
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