Method of segmenting an audio stream
US7346516B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 21, 2003 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | May 4, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/04
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Disclosed herein is a segmentation method, which divides an input audio stream into segments containing different homogeneous signals. The main objective of this method is localization of segments with stationary properties. This method seeks all no-stationary points or intervals in the audio stream and creates a list of segments. The obtained list of segments can be used as an input data for the following procedures, such as classification, speech/music/noise attribution and so on. The proposed segmentation method is based on the analysis of audio signal statistical features variation and comprises three main stages: stage of first-grade characteristics calculation, stage of second-grade characteristics calculation and stage of decision-making.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.