METHOD AND SYSTEM FOR IMPROVING THE RESTITUTION OF LOW FREQUENCIES OF AN AUDIO SIGNAL
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United States of America Patent
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Issued Date -
Aug 31, 2023
app pub date -
Feb 27, 2023
filing date -
Feb 28, 2022
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Abstract
A method and a system for improving the low-frequency sound reproduction of an audio signal, the sound reproduction being performed by an audio system comprising at least one loudspeaker. The system includes a low-frequency sound enhancement module with filters for separating an input audio signal into a high-frequency signal and a low-frequency signal. The system is configured to implement a first audio processing of the low-frequency signal to obtain a low-frequency output signal and a second audio processing of the high-frequency signal to obtain a high-frequency output signal. The low-frequency sound enhancement module includes, for the first processing of the low-frequency signal, a module for increasing the dynamic range of the low-frequency signal, which is parameterised as a function of at least one transient part of the low-frequency signal.
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