Real-time spatial audio control system for loudspeaker arrays
Data di pubblicazione05-07-2022
Data di priorità19-05-2020
TitolarePolitecnico di Milano
DipartimentoDepartment of Electronics, Information and Bioengineering
AutoriSarti Augusto, Tubaro Stefano, Canclini Antonio, Bondi Luca, Borra Federico
The proposed invention consists in an algorithm for the achievement of 3D immersive audio by real-time rendering of sound sources using loudspeaker arrays.
With the application of stereophonic laws, it is possible to achieve a highly enhanced audio experience in which every sound is perceived as coming from a specific location on the stage.
Traditional systems adopted in the live music context involve the use of a dual-mono setup in which two speakers are placed on either side of the stage. This type of arrangement is very sensitive and the quality of the acoustic experience is easily compromised; moreover, the sound all comes from the central area only.
Immersive audio solves this problem by allowing the acoustic scene to be reproduced coherently from all audience positions. In order to achieve this effect with arrays of loudspeakers, a control system is required. The one proposed by this invention is a spatialization algorithm that enables real-time processing of a large number of audio sources by taking into account the geometry of loudspeaker arrays. The software is then complemented by a user interface that makes the work of the sound engineer easier.