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Lecture Recorder x2Frequently Asked Questions

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  1. Can Lecture Recorder x2 capture DVI/VGA/HDMI and S-video or composite video simultaneously?
  2. What type of Ethernet interface is required for Lecture Recorder x2?
  3. How many frames per second can Lecture Recorder x2 capture?
  4. Does Lecture Recorder x2 reduce the resolution of the images it captures?
  5. Can Lecture Recorder x2 function over a Local Area Network (LAN) or does it need a constant Internet connection?
  6. The video mode that I am using is not listed in the list of supported modes for Lecture Recorder x2. Can Lecture Recorder capture it?
  7. How can I configure the Lecture Recorder x2?
  8. What compression does Lecture Recorder x2 use?
  9. Does Lecture Recorder x2 stream to iPad and other iOS devices? MJPEG or Apple Live Streaming Protocol? 
  10. How do I ensure that Lecture Recorder x2 is set up correctly ?
  11. How do I broadcast a stream to 10-20-100 or more viewers with Lecture Recorder How do I ensure my system is set up correctly with Lecture Recorder x2 ?
  12. How do I apply branding, copyright notices to my streams and recordings created with Lecture Recorder x2 ?
  13. What is the difference between VGADVI Recorder and Lecture Recorder x2?

1. Can Lecture Recorder x2 capture DVI/VGA/HDMI and S-video or composite video simultaneously?

Yes.  Lecture Recorder x2 then allows you choose if the HD and SD channels will be broadcast as one stream or two independent streams.

2. What type of Ethernet interface is required for Lecture Recorder x2?

Lecture Recorder x2 performs on-board compression such that a 100 Mbps network connection should provide enough capacity for effective transmission of video streams transmitted. The Ethernet connector is also the source of power for Lecture Recorder x2. If your network does not provide Power over Ethernet (PoE - spec: IEEE 802.3af class 0 ), you will need to use an Power over Ethernet injector as provided with your device. 

3. How many frames per second can Lecture Recorder x2 capture?

Lecture Recorder x2 can capture at rates up to 30 FPS.  The actual capture rate of the Lecture Recorder x2 will depend on the CODEC and other settings such as original source resolution, frame size, bit rates and quality vs. speed settings configured for your application. Please refer to the device's specifications and documentation for guidelines and examples to achieve the ideal frame rate for your applications.

4. Does Lecture Recorder x2 reduce the resolution of the images it captures?

Lecture Recorder x2 can preserve the original resolution of the images captured by setting the frame size of the channel captured to match the resolution of the source. Lecture Recorder x2 can also perform real time scaling of the incoming source resolution and render to the frame size chosen in the stream setup configuration menus.  Configuring the frame size for the HD channel and SD channel allows you to create different visual layouts during streaming and recording of the broadcast event

5. Can Lecture Recorder x2 function over a Local Area Network (LAN) or does it need a constant connection to the Internet?

Lecture Recorder x2 does not need to be connected to a LAN or the Internet. Lecture Recorder x2 can function as a stand-alone device or directly connected to the Ethernet port of a computer. In the case of stand alone modes, Lecture Recorder x2 will require use of a Power over Ethernet injector in order to provide power to the device. Please consult the product documentation for instructions on how to configure the device for stand alone modes.

However, if connected to a LAN or the Internet, the Lecture Recorder x2 can automatically archive the recordings it makes to an FTP server. As well, a connection to a LAN or the Internet allows the user to remotely manage and access the recordings that Lecture Recorder x2 makes.

6. The video mode or source resolution that I am using is not listed in the list of supported modes for Lecture Recorder x2 specifications. Can Lecture Recorder capture it?

Lecture Recorder x2 analyses the source signals in order to automatically determine the incoming source resolution. If Lecture Recorder x2 does not support the resolution you provide, Please contact us. We are always looking for ways to improve our products to add support for this mode.

7. How can I configure the Lecture Recorder x2?

Although the Lecture Recorder x2 is a simple "plug-and-play" device, configuration can be performed through an intuitive web interface.  Advanced users may also use HTTP API commands.

8. What compression does Lecture Recorder x2 use?

Lecture Recorder x2 is compatible with many different video compression formats and codecs. The compression to be used for recording can be set by the user.  Please consult the Stream Setup menu or the product documentation for the most recent list of CODECs supported by Lecture Recorder x2.

9. Does Lecture Recorder x2 stream to iPad and other iOS devices ? MJPEG or Apple Live Streaming Protocol?

Lecture Recorder x2 can stream to tablets, phones , viewers, browsers that support MJPEG, MPEG4 or H.264. iPADs support MJPEG streaming and Apple HTTP Live Streaming technology. With Lecture Recorder x2, MJPEG streaming directly to iPad can be used , however MJPEG presents some limitations such as no audio and latency. 

Unfortunately, streaming directly to iPAD using Apple HTTP Live Streaming technology requires higher bandwidth, additional processing power and will have inherently large latency. Users may also publish their streams to iPad, iPhone and iPod Touch devices using a Content Distribution Network.

For more information on Epiphan products that support CDN service providers, please visit www.epiphan.tv/cdn-products.php

For a list of currently approved 3rd party CDN service providers, please see www.epiphan.tv/cdn-partners.php

Streaming directly to iOS devices is fully supported with Epiphan’s Broadcaster Standard, Broadcaster Pro . VGA2Ethernet can also be used to stream to iPAD devices using a special
free iTunes application.

10. How do I ensure that Lecture Recorder x2 is set up correctly ?

The Lecture Recorder x2 product documentation provides an expanded trouble shooting guide to help ensure your system is setup correctly.  

Some things to check quickly in the following order:

Item Checklist Item Objective
1 Ensure the 3 LED lights on the face plate are flashing • Confirm power is on
2 Ensure sure the lights on the Ethernet port are flashing. Note that flashing lights confirm Ethernet is working, but you also need to make sure TCP/IP configuration is working ( see below ) • Ethernet connection is working
3 Connect a VGA/DVI monitor to the DVI out port to make sure the incoming display port and associated cables are working properly • HD Source is working, HD Source cables are working
4 Connect your camera output into a matching S-video/Composite input on a TV input to • Ensures analog video cables and analog camera is setup to provide video out (some cameras are tricky)
5 Connect headsets to audio out • Confirms analog audio source and cables into device are working
6 Run the Epiphan Network Discovery tool or the EpiphanTouch application to find the IP Address of the Lecture Recorder x2 ( Lecture Recorder is up and running and connected to the IP network )

If you cannot connect over the IP network, you will not be able to administer the device. You can try a direct connection in order to confirm the Lecture Recorder x2 is working and therefore isolating a network issue
• Confirm Ethernet and TCP/IP configuration is correct.
7 Confirm the capture frame size is the same or lower than the resolution of the source • Ensures the output fits into the output frame
8 Choose to Configure the system as a single stream output or independent streams. • This choice will determine the frame sizes you want to choose in order to have the best user experience.
• For example with independent streams, floating windows can be resized/moved by the end-user, whereas both streams to the same window, the user will not expect to resize/move the windows
9 Click the Live View button to confirm the device is streaming. • Confirm the inputs are captured and streamed
• Confirm browsers, and media players can view the stream
• Confirm picture with picture layout before making adjustments and customizations
10 If your browser is not viewing the stream, try viewing one of the test streams available on the Epiphan website demo systems. • Isolate any media player or browser issues
11 Consult the product documentation for more trouble shooting advice • This checklist goes through most issues, the product documentation covers other areas.
12 Contact your Epiphan Channel Partner that sold you the device or Epiphan Support • Product feedback is appreciated

11. How do I broadcast a stream to 10-20-100 or more viewers with Lecture Recorder x2?

Lecture Recorder x2 supports a number streaming protocols (HTTP, RTP over RTSP, UDP or HTTP) that provide different scalability and underlying network configuration trade offs. HTTP streaming architectures are the simplest, but does not offer the level of scalability of multicast and/or content distribution network architectures. Please consult the product documentation for further information.

12. How do I apply branding, copyright notices to my streams and recordings created with Lecture Recorder x2?

Lecture Recorder x2 provides multiple mechanisms to brand your streams and recordings. The stream setup menus provide a mechanism to apply timestamp, text such as event name, copyright, time, date, etc. Graphical presentation of the streaming windows can be modified using XLST templates. Branding and graphics can be applied during the video editing process. If you plan to add branding during post production, care should be taken in the layout of the windows so that there is room for the branding you wish to apply.

13.What is the difference between VGADVI Recorder and Lecture Recorder x2?

VGADVI Recorder has 32GB internal memory while Lecture Recorder x2 has 16GB of internal storage. This storage capacity difference is particularly important in recording applications where the device is offline or doesn't have constant access to upload recorded files. 32GB of storage on the VGADVI Recorder allows the user to record significantly more content than on the Lecture Recorder x2 before it has to be connected to the network or internet for uploading.