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:
Nov. 12, 2024
Filed:
Nov. 29, 2019
Bigo Technology Pte. Ltd., Singapore, SG;
Xiaojie Wu, Guangzhou, CN;
BIGO TECHNOLOGY PTE. LTD., Singapore, SG;
Abstract
A method for transforming an audio signal comprises obtaining a plurality of segmental original frequency-domain signal segments and a plurality of segmental target frequency-domain signal segments by segmenting and performing a Fourier transform on an original audio signal and an initial target audio signal obtained by pitch shifting on the original audio signal; obtaining a plurality of original formant envelopes by respectively filtering the plurality of segmental original frequency-domain signal segments according to a plurality of original segment window functions, and obtaining a plurality of target formant envelopes by respectively filtering the plurality of segmental target frequency-domain signal segments according to a plurality of target segment window functions; and determining a pitch-shifted audio signal based on the plurality of segmental target frequency-domain signal segments, the plurality of original formant envelopes, and the plurality of target formant envelopes.