The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2020
Filed:
Dec. 09, 2019
Aac Technologies Pte. Ltd., Singapore, SG;
AAC Technologies Pte. Ltd., Singapore, SG;
Abstract
The embodiments of the present invention relate to the field of audio signal processing and disclose a method for adjusting sound quality, which includes: acquiring an audio signal to be adjusted; acquiring a resonance frequency and a frequency response curve of an exciter; forming a recursive filter and determining a filter parameter of the recursive filter according to the frequency response curve; inputting the audio signal to be adjusted into the recursive filter within a preset range of the resonance frequency to acquire an equalizing signal; performing preset sound effect processing on the equalizing signal to acquire a signal to be excited, wherein the preset sound effect processing at least includes inputting the equalizing signal into a non-recursive filter, and inputting the signal to be excited into the exciter to output an audio signal. The present invention further provides a tone quality adjusting device.