Acoustic correction apparatus and method for vehicle audio system
AssigneeHyundai Motor Company
InventorSoon Kwon Paik
Life of this patent
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Abstract
Disclosed herein is an acoustic correction apparatus and method for vehicle audio systems which is capable of providing optimal sound at a reference level to a listener even though the acoustic spatial response characteristics in the room of a vehicle vary due to a change in the material of seat covers or the like. A first acoustic analysis unit obtains target frequency characteristic data at a specific listening location based on generated acoustic signals played from an audio system. A second acoustic analysis unit obtains measured frequency characteristic data at the listening location based on measured acoustic signals collected by the microphone unit. An acoustic correction unit adjusts the equalizer of the audio system based on the target and measured frequency data.
Claims6
An acoustic correction apparatus for a vehicle audio system, comprising:
- a microphone unit installed in an internal space of a vehicle;
- a first acoustic analysis unit for obtaining target frequency characteristic data at a specific listening location based on generated acoustic signals played from an audio system;
- a second acoustic analysis unit for obtaining measured frequency characteristic data at the listening location based on measured acoustic signals collected by the microphone unit;
- and
- an acoustic correction unit for adjusting an equalizer of the audio system based on the target and measured frequency data.
An acoustic correction method for a vehicle audio system, comprising the steps of:
- playing a sound source through an audio system;
- obtaining target frequency characteristic data at a specific listening location from generated acoustic signals, which are played through the audio system, based on a first reference transfer function or functions between speakers of the audio system and the specific listening location;
- obtaining measured frequency characteristic data at the listening location from measured acoustic signals, which are collected by a microphone unit, based on a second reference transfer function between the microphone unit and the listening location;
- and
- adjusting an equalizer of the audio system based on the target and measured frequency characteristic data.
Dependencies are inferred from the claim text.