Video: Understanding Video Performance: QoE is not QoS

Mux’s Justin Sanford explains the difference between Quality of Service and Quality of Experience; the latter being about the entire viewer experience. Justin looks at ‘Startup time’ showing that it’s a combination of an number of factors which can include loading a web page showing the dependence of your player on the whole ecosystem.

Justin discusses rebuffering and what ‘quality’ is when we talk about streaming. Quality is a combination of encoding quality, resolution but also whether the playback judders.

“Not every optimisation is a tradeoff, however startup time vs. rebuffering is a canonical tradeoff.”

Justin Sanford, Mux

Finally we look at ways of dealing with this, including gathering analytics, standards for measuring quality of experience, and understanding the types of issues your viewers care most about.

From San Francisco Video Tech.

Watch now!

Speaker

Justin Sanford Justin Sanford
Product Manager,
Mux

Video: ABR Streaming and CDN Performance

Hot on the heel’s of yesterday’s video all about Adaptive Bitrate (ABR) streaming we have research engineer Yuriy Reznik from Brightcove looking at the subject in detail. We outlined the use of ABR yesterday showing how it is fundamental to online streaming.

Brightcove, an online video hosting platform with its own video player, has a lot of experience of delivery over the CDN. We saw yesterday the principles that the player, and to an extent the server, can use to deal with changing network (and to an extent changing client CPU usage) by going up and down through the ABR ladder. However this talk focusses on how the CDN in the middle complicates matters as it tries its best to get the right chunks in the right place at the right time.

How often are there ‘cache misses’ where the right file isn’t already in place? And how can you predict what’s necessary?

Yuriy even goes in to detail about how to work out when HEVC deployment makes sense for you. After all, even if you do deploy HEVC – do you need to do it for all assets? And if you do only deploy for some assets, how do you know which? Also, when does it make sense to deploy CMAF? In this talk, we hear the answers.

The slides for this talk

Watch the video now!

Speaker

Yuriy Reznik Yuriy Reznik
VP, Research
Brightcove

Webinar: Leveraging Data and Analytics to Improve Quality of Experience and Quality of Service

Date: Thursday July 12th, 11AM PT / 2PM ET / 19:00 BST

Data-driven insights can empower decision makers to enable a better online viewing experience for their audience, optimize their business, and create a competitive advantage in the industry. When it comes to online streaming, there are key metrics you should review to ensure audience engagement and provide high-quality experiences.

This webinar will provide insight into how you can leverage data, addressing the following topics:

  • How webcasting quality of experience (QoE) and quality of service (QoS) dashboards can provide the most critical information needed to troubleshoot live presentations in real time
  • How video publishers can use data and analytics in managing and improving their service
  • How QoE and QoS impact your audience and bottom line
  • How to drill down to the individual user level to gain 360-degree insight into viewer experience
  • What metrics and data points are the most important for video publishers and OTT services
  • How can QoE analytics be used to design streaming infrastructure and improve streaming performance.

REGISTER NOW to attend the webinar “Leveraging Data and Analytics to Improve Quality of Experience and Quality of Service.”

MODERATOR SPEAKERS
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Eric Schumacher-Rasmussen
VP / Editor
Streaming Media
Shaun Brown
Sr. Webcast Producer
MediaPlatform
Dina Durutlic
Product Marketing
Akamai
Kumar Subramanian
CEO
MediaMelon, Inc.
Brenton Ough
CEO
Touchstream