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MOS (Mean Opinion Score)
MOS has become a common requirement in device and network testing, but the origin and meaning of MOS can be confusing.
In this first video we begin with an analysis of three key aspects of voice quality measurement:
In the first video we explore the main metrics commonly used to evaluate MOS.
In the second video we investigate the differences between POLQA and PESQ and discuss which is more suitable for different applications.
In the third video we look at the speech samples used with POLQA and PESQ, giving practical advice on how to select them for testing in any application.
Well, you might be a senior network engineer, and you probably already know all the facts about MOS... And you're right. If you come from the corporate world and not from the telecoms or networking equipment industry, you might think that this video series is not for you... Well, you're wrong! To find out, I would like to ask you a simple question: which MOS exactly do you have in mind?
There are many different MOS... And I'm not just talking about the G.107, the E model, the CQ, the LQ, etc... They are more or less the same MOS of "Red". I'm talking about "objective" versus "synthetic" average opinion scores. In the business world, IT teams don't always consider which algorithm, or even which method, implements the test and measurement solution they use to monitor the quality of their VoIP.
[alert type="success" close="false" heading="Sound familiar?"] If you have already faced a situation where you were getting excellent scores while most users were complaining about a bad experience - or even the other way around - then this 3-episode How-To video series is definitely worth your time. [/alert]
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