About this document
Understanding Mean Opinion Score (MOS) by Moh diak is a document available to read on EtoBox.
The Mean Opinion Score (MOS) is a numerical indication of the perceived quality of media such as voice after compression or transmission on a scale of 1 to 5, where 1 is the lowest quality and 5 is the highest. MOS testing is used to evaluate the quality of different voice codecs, with examples showing scores ranging from 4.3 for G.711 to 3.5 for GSM FR. A drop of half a MOS point in quality is audible to users, while a drop of a quarter point is just noticeable. MOS provides an overview of speech quality o
- Author
- Moh diak
- Language
- EN