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:
Jan. 23, 2024
Filed:
Apr. 28, 2022
Aac Microtech (Changzhou) Co., Ltd., Changzhou, CN;
Aac Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Sebastian Schlecht, Tampere, FI;
Leonardo Fierro, Tampere, FI;
Vesa Valimaki, Tampere, FI;
Juha Backman, Tampere, FI;
AAC Microtech (Changzhou) Co., Ltd., Changzhou, CN;
AAC Acoustic Technologies (Shenzhen) Co., Ltd., Shenzhen, CN;
Abstract
Provided is a method for audio peak reduction using an all-pass filter, including: determining a delay parameter m and a gain parameter g based on a formula (1): absolute peak map y(n) represents a processed signal with a time-domain response function and is calculated based on a formula (2): y(n)=(h*x)(n)(2), where hrepresents an impulse response function, x (n) represents an input signal, and his calculated based on formula (3): This method is widely used in the reproduction, storage and broadcasting of sound, and the computational complexity is small, which is a supplement to the traditional nonlinear compression algorithm.