Voice quality assessment system
US11611664B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 25, 2021 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Dec 9, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04M3/2254
- WIPO fieldTelecommunications
- WIPO sectorElectrical engineering
Abstract
A new audio quality assessment system includes an assessment system running in a receiver system of a VoIP communication system. The new audio quality assessment system determines an accurate MOS of a VoIP call within a time window. The audio quality assessment system determines an effective PLC counter, a PLC impact factor, an effective AS counter, an AS impact factor, a network impact factor, a codec type of the received voice packets, a bitrate of the received voice packets, an initial MOS from a configured codec-bitrate MOS table, and determines the accurate MOS based on these data. The determined MOS is more accurate and efficiently obtained since it is based on efficiently collected statistics of the receiver system's modules and a pre-configured codec-bitrate MOS table.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.