Patent ID: 11950090
Assignee: AAC MICROTECH (CHANGZHOU) CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 7:
8. An in-vehicle adaptive sound quality output device, including:
a volume level acquisition unit, for obtaining a current volume level input by the user;
a calculation unit of audio signal gain difference, used for determining an audio signal gain difference between the current volume level and a baseline volume level according to the current volume level and the preset baseline volume level;
a calculation unit of equal loudness curve difference, used for determining the equal loudness curve difference between the current volume level and the baseline volume level according to the audio signal gain difference, the current volume level and the baseline volume level;
a calculation unit of audio quality response curve, used for determining the audio quality response curve corresponding to the current volume level according to the equal loudness curve difference and the pre-stored audio quality response curve corresponding to the baseline volume level; and
a calculation unit of output signal, used for determining the output signal parameters of multiple audio output channels according to the audio quality response curve corresponding to the current volume level.