Method and device for adjusting sound quality
US10819305B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 9, 2019 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Dec 9, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH03G2201/103
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.