The Swivl C Series Robot has the ability to collect audio from up to 5 markers simultaneously. Aside from the Primary Marker, which comes pre-paired in the base, you will need to pair each additional marker that you wish to use.


The marker that originally comes inside the Swivl Robot’s charging dock will be the Primary Marker, to which the Swivl will respond and track. Secondary Markers must be paired, and will act as audio recording devices around the room.

In the event that you need to clear the current paired Markers from your C Series robot, you will first need to clear the base memory and then re-pair the markers.


By default, the Swivl C Series robot will track the Primary Marker, which is most often worn or held by the teacher. In certain instances, however, the teacher may want to pass off tracking to a student or group that is presenting, in order to focus the recording on their work. The Primary Marker can be used to hand off tracking to one of these Secondary Markers, and if multiple student groups are presenting, Secondary Markers can receive tracking one after the other.

Simultaneously present and stream a workshop with source code and device screens

A few years ago, I worked as a software developer for a mobile phone manufacturer. Our team was pretty geographically distributed, so we relied a lot on collaboration tools. Every couple of weeks our scrum team demonstrated to one another our progress on mobile apps we were developing. We did this in a variety of ways, including sharing source code on our screen, sharing screen captures saved from the phone, or sometimes by pointing our laptop’s web cameras at the phone and to show what was happening on the screen.

If you haven’t tried this yourself, let me be honest and say it’s really hard to get across the fluidity of a design that includes transitions and animation with screen captures or a laptop camera! For example in one case my application included an animation that looked similar to a card being placed in a wallet. The smoothness of the animation and the shadows behind the card were lost and my remote team members could only see a splintered slide across the screen with very grainy graphics.

In Epiphan’s Support department, we often have conversations with customers about the difference between frame rate and refresh rate. This typically comes up when discussing the compatibility of our products with various video signals, but unfortunately it sometimes causes confusion to customers and Epiphan support staff alike when the terms are used incorrectly or interchangeably. Today I’d like to clear up the mystery and explain the differences between these two similar, but distinct, terms.

In recent years, lecture capture in higher education has grown from a helpful learning aid to an essential utility that an increasing number of schools are putting to use as part of their successful overall business model – the value of lecture capture is real. 
Pearl, our flagship live video production mixer, packs a whole lot into a small package.

As you probably already know, Pearl takes lets you combine four HD video sources (SDI, HDMI™, DVI or VGA) and accompanying audio sources (or balanced stereo TRS audio) into multiple custom configurations, called channels. In fact, Pearl can record and stream four 1080p channels at 30 fps.

Did you know however, that Pearl does more than recording and traditional multicast and CDN streaming? Here are five ways I think Pearl might surprise you!

Every day, around the world, digital signage show us flight and transportation data, menus, production statistics, important safety messages, presentations, overflow classroom lectures and more. I’d like to show you how easy it is to create digital signage using smart TVs and Pearl.

Maximizing layout space with HD sources

HD video is the norm for many cameras now, and with good reason. The 16:9 aspect ratio helps show a detailed landscape view, and the 1080p resolution looks gloriously well-defined on your display. If 1080p, 16:9 is great, and changing it reduces the quality, why would you ever want to change or crop it? The most common reasons are wanting to edit out parts of the video source, or to maximize layout space when showing more than one source side by side or picture in picture.  The trick is being able to crop or scale the video without leaving the video looking like a distorted mess.

If you’re in the Pro AV space, or are familiar with streaming and recording live events, you’ve no doubt heard of drones. And if you’re curious about using drone technology in your next live production, you’ve come to the right place.

In this post I’ll cover the value drones bring to live events and then take you through two different live production setup using drones as video sources: one that’s simple and cost-effective, and a second that’s geared for live production at a more advanced level.