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AssigneeFaurecia Clarion Electronics Europe
InventorsNicolas LOPEZ ZULETA, Jérôme NOIROT, Jacquemin VIDAL
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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.
A method of improving the low-frequency sound rendering of an audio signal, the sound rendering being performed by an audio system comprising at least one loudspeaker, the method comprising:
A processing system for improving the low-frequency sound rendering of an audio signal, the sound rendering being performed by an audio system comprising at least one speaker, the processing system comprising a low-frequency sound enhancement module comprising filters for separating an input audio signal into a high-frequency signal and a low-frequency signal, the processing system being configured to implement a first processing of the low-frequency signal to obtain a low-frequency output signal and a second processing of the high-frequency signal to obtain a high-frequency output signal, and a summation of the low-frequency output signal and the high-frequency output signal to obtain an output audio signal supplied as input to a set of audio processing blocks of the audio system, the low-frequency sound enhancement module configured, for said first processing of the low-frequency signal, to increase the dynamics of the low-frequency signal, parameterised as a function of at least a transient part of said low-frequency signal.
Dependencies are inferred from the claim text.