Method and apparatus for sound event detection robust to frequency change
US10540988B2 · kind B2 · utility
2Cited by
1References
11Claims
0Family size
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Key dates
| Filing date | Nov 20, 2018 |
| Grant date | Jan 21, 2020 |
| Priority date | — |
| Expiry date | Nov 20, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L25/18
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a sound event detecting method including receiving an audio signal, transforming the audio signal into a two-dimensional (2D) signal, extracting a feature map by training a convolutional neural network (CNN) using the 2D signal, pooling the feature map based on a frequency, and determining whether a sound event occurs with respect to each of at least one time interval based on a result of the pooling.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.