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DescriptionRfel vsesmer front.png
English: artificial omni-directional sound source in anechoic acoustic chamber, Czech Technical Univerzity In Prague, Faculty of Electrical Engineering, Department of Physics
Čeština: umělý všesměrový zdroj zvuku v akustické bezodrazové komoře katedry fyziky na ČVUT FEL v Praze
Deutsch: Dodekaeder-Lautsprecher als Pseudo-Kugelquelle für akustische Messungen im (schall-)reflexionsarmen Raum der Fakultät für Elektrotechnik der TU Prag.
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