Frequently Asked Questions

Frequently Asked Questions Got a question? Check out our quick answer guide.

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 recorded and broadcast as one stream or two independent streams.

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.

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 depends on the original source resolution and configured settings such as the codec, frame size, bitrate and quality vs. speed setting. Refer to the device’s documentation for guidelines and examples to achieve the ideal frame rate for your applications.

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

Be default, Lecture Recorder x2 preserves the original resolution of the images captured by setting the frame size of the channel captured to match the source resolution. 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 used for streaming and recording.

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.

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 analyzes the source signals to automatically determine the incoming source resolution. You can change this in the web admin interface and upload custom EDIDs if needed. 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.

How can I configure the Lecture Recorder x2?

Configuration isperformed through an intuitive web interface.  Advanced users may also use HTTP API commands.

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 also be set by the user.  Consult the Stream Setup menu or the product documentation for the most recent list of codecs supported by Lecture Recorder x2.

Does Lecture Recorder x2 stream to iPads and other iOS devices ?

Yes. Lecture Recorder x2 can stream to browsers on Apple devices using the MJPEG codec. Additionally third party media player applications running on an iPad, iPod, or iPhone support other codecs such as H.264 and MPEG4. 

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 confirm the camera is working correctly. • Ensures analog video cables and analog camera is setup to provide video out (some cameras are tricky)
5 Connect a headset to the audio output port on the Lecture Recorder x2. • Confirms analog audio source and cables into device are working
6 Run the Epiphan Network Discovery tool or the EpiphanConnect 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 be able to resize/move the windows
9 Click the Live View button from the web admin interface 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

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, RTMP, 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. Consult the product documentation for further information.

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. Additionally you can customize with a logo, upload a custom no-signal image, or select the background matte color used in picture in picture modes. 

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

VGADVI Recorder has 32 GB of internal storage, Lecture Recorder x2 has 16 GB of 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. VGADVI Recorder’s 32 GB of storage allows the user to record significantly more content before it has to be connected to the network or internet for uploading.

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