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:
May. 19, 2026
Filed:
Mar. 04, 2024
Acer Incorporated, New Taipei City, TW;
PO-Jen Tu, New Taipei City, TW;
Jia-Ren Chang, New Taipei City, TW;
Kai-Meng Tzeng, New Taipei City, TW;
Acer Incorporated, New Taipei City, TW;
Abstract
A processing method and a processing apparatus of sound signal are provided. Extracting a plurality of mel-frequency cepstrum coefficients (MFCCs) from a sound signal to be processed includes: obtaining a power corresponding to a plurality of mel-frequencies of the sound signal to be processed through a plurality of band-pass filters, in which each band-pass filter corresponds to a mel frequency, and the mel-frequencies corresponding to the band-pass filters are different; mapping a first frequency among the mel-frequencies to a second frequency among the mel-frequencies, and replacing the power corresponding to the second frequency with the power corresponding to the first frequency, in which the second frequency is lower than the first frequency; and generating the MFCCs using the power corresponding to the mel-frequencies. A synthetic sound signal is generated using the MFCCs of the sound signal to be processed. Therefore, a complete sound feature is retained.