Proposed paper for AES 21st International Conference on Architectural Acoustics & Sound Reinforcement, June 1-3, 2002, St. Petersburg, Russia.
 

Sophisticated tube headphones for spatial sound reproduction

Klaus A J Riederer
Risto Niska (*)

Helsinki University of Technology (HUT)
Laboratory of Computational Engineering
Laboratory of Acoustics and Audio Signal Processing
Miestentie 3, P.O. Box 9400, FIN-02015 HUT, Finland
Tel: +358 9 451 5328; Fax +358 9 451 4830
Email: Klaus.Riederer@hut.fi
URL: http://www.lce.hut.fi/~kar

(*)Unides Design Ay.
Sallatunturintie 1J 75, FIN-00970 Helsinki, Finland
Tel: +358 9 755 5854; +358 400 445 880




Custom tube headphones, fulfilling high requirements of accurate spatial sound perception experiments are presented. The UD-ADU1b headphones demonstrate a maximal ±5 dB deviation in the frequency band 30..9000 Hz, 1/3-octave smoothed. The ear canal blocking attenuates background noise typically 15-20 dB, and allows a precise positioning of the sound source. The non-magnetic tubes are used in neuro- and psychophysiological research.