Production of 3D audio signals
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United States of America Patent
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Oct 24, 2017
Grant Date -
Nov 12, 2015
app pub date -
Dec 19, 2013
filing date -
Dec 27, 2012
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Abstract
A device which produces the necessary directional audio signals for a 3-dimensional audio playback and which in that case uses as input signals the available channels of an audio recording intended for 2-dimensional audio playback. By taking psychoacoustic effects into account the desired spatial 3D audio effect is produced by a targeted use of signal delays, frequency-dependent amplitude matchings and a limited use of reverberation effects in conjunction with a targetedly asymmetric processing.
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