DIFFERENTIAL AUDIO REPRODUCTION Russian patent published in 2019 - IPC H04R1/40 

FIELD: physics.

SUBSTANCE: invention relates to acoustics, particularly to sound reproduction devices. Sound reproduction system comprises an array of emitters having at least three converters and a computing module. Computing unit comprises an input means for receiving an audio stream to be played using the array, a processor, three outputs for controlling at least three array converters. Processor is configured to calculate at least three separate audio signals such that an acoustic difference signal of the second or higher order is reproduced using the array. Processor is configured to calculate second-order acoustic difference signal based on physical expression s₁(t)=s(t−τ₁) s₂(t)=−2s(t−τ₂) s₃(t)=s(t−τ₃) where corresponding τ₁, τ₂ and τ₃ are delay characteristics corresponding to three separate audio signals s₁, s₂ and s₃.

EFFECT: technical result is increased efficiency of sound reproduction.

20 cl, 11 dwg