Music classification method and beat point detection method, storage device and computer device
US11715446B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 4, 2018 |
| Grant date | Aug 1, 2023 |
| Priority date | — |
| Expiry date | Mar 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10H2210/076
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A music beat point detection method includes: performing a frame processing on a music signal to obtain a frame signal; obtaining a power spectrum of the frame signal; performing sub-band decomposition on the power spectrum, and decomposing the power spectrum into at least two sub-bands; performing a time-frequency domain joint filtering on a signal of each sub-band according to a beat type corresponding to each sub-band; obtaining a to-be-confirmed beat point from the frame signal of the music signal according to a result of the time-frequency domain joint filtering; and obtaining a beat point of the music signal according to a power value of the to-be-confirmed beat point.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.