ANGLE-DEPENDENT OPERATING DEVICE OR METHOD FOR GENERATING PSEUDO-STEREOPHONIC AUDIO SIGNAL Russian patent published in 2014 - IPC H04S5/00 H04R5/00 G10L19/00 

Abstract RU 2513910 C2

FIELD: physics, acoustics.

SUBSTANCE: invention relates to audio signals and devices or methods for generation, transmission, conversion and reproduction thereof. A monophonic audio signal of arbitrary directional characteristic is subjected to targeted propagation time difference (1210, 1211) and loudness corrections (derived from 1212 and 1213), while parameterising the angle phi (1205) included by the main axis (1203) and the direction of impingement of the sound source (1204), an imaginary left opening angle alpha (1206), and an imaginary right opening angle beta (1207), and the directional characteristic of the monophonic signal to be stereophonicised (represented in polar coordinates). The result is an M-signal and an S-signal allowing MS matrix formation (and thereby the stereophonic reproduction of the originally monophonic audio signal).

EFFECT: improved stereophonic reproduction of a monophonically mapped sound source.

14 cl, 20 dwg

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RU 2 513 910 C2

Authors

Par Klemens

Dates

2014-04-20Published

2009-05-12Filed