Two seemingly incompatible worlds of quantum physics and acoustics have their meeting point in experiments with the Bose-Einstein Condensate. From the very beginning, the Quantum Music project was based on the idea of converting the acoustic phenomena of quantum physics that appear in experiments into the sound domain accessible to the human ear. The first part of this paper describes the experimental conditions in which these acoustic phenomena occur. The second part of the paper describes the process of sound synthesis which was used to generate final sounds. Sound synthesis was based on the use of two types of basic data: theoretical formulas and the results of experiments with the Bose-Einstein condensate. The process of sound synthesis based on theoretical equations was conducted following the principles of additive synthesis, realized using the Java Script and Max MSP software. The synthesis of sounds based on the results of experiments was done using the MatLab software. The third part or the article deals with the acoustic analysis of the generated sounds, indicating some of the acoustic phenomena that have emerged. Also, we discuss the possible ways of using such sounds in the process of composing and performing contemporary music.
Sadržaj -DM zvu nici (DML-Distributed ModeLoudspeakers) odnosno zvu nici sa raspodeljenim izvorima vibracija predstavljaju tehni ko rešenje koje se bazira na upoterbi ravnih plo a, odnosno panela kao izvora zvuka. U ovom rešenju do formiranja zvu nog polja dolazi aktiviranjem ravnomerno raspodeljenih izvora vibracija ravne plo e, koriš enjem namenskog elektroakusti kog pobu iva a (exciter). Zbog ovakvog na ina generisanja zvuka, karakteristike DM zvu nika se umnogome razlikuju od karakteristika elektrodinami kih zvu nika sa membranom. Njihov oblik u vidu plo e male debljine ini ih veoma interesantnim za primenu u dizajniranju enterijera, za potrebe mobilne telefonije i ra unarske industrije, industrije zabave i sl.U ovom radu su prikazani rezultati merenja frekvencijske karakteristike, karakteristike usmerenosti i izobli enja ovog tipa zvu nika u zavisnosti od na ina njihove ugradnje.Klju ne re i -Akustika, izvori zvuka, zvu nici. DraganDrin i , , Visoka škola elektrotehnike i ra unarstva, Vojvode Stepe 283, Beograd, dragan.drincic@beotel.net Dragan Novkovi , Visoka škola elektrotehnike i ra unarstva, Vojvode Stepe 283, Beograd, novkov@viser.edu.rs Sonja Krsti , Visoka škola elektrotehnike i ra unarstva, Vojvode Stepe 283, Beograd,ABSTRACT Distributed Mode Loudspeakers ((DML) represent a technical solution based on flat panel as sound source.Sound field is formed activating uniformly distributed sources of vibration in a flat plate using a special purpose electro acoustical exciter. This method of generating sound makes speaker radiation characteristics different from the one for electro -dynamic speakers. Those speakers could be applied in interior design, for mobile telephony and computer industry, the entertainment industry, etc. This paper presents results for frequency and directivity characteristics, and distortion measurements for different methods of their installation. DISTRIBUTED MODE LOUDSPEAKERS
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