NCast Presentation Recorder User manual

NCast Presentation Recorder Reference Manual
NCast Product Documentation
Presentation Recorder
Reference Manual
Revision 2.2
May 29th, 2014
PR-HD Software Release 8.0.13
opyright © N ast orporation, 2014
N ast orporation Revision 2.2
Page 1

NCast Presentation Recorder Reference Manual
Table of ontents
1. Introduction ................................................................................................................................................... 6
1.1. Purpose .................................................................................................................................................. 6
1.2. Document Overview ............................................................................................................................... 6
1.3. Presentation Recorders – Basic Models ................................................................................................ 6
1.4. Presentation Recorders – Extreme Models ............................................................................................ 7
1.5. Presentation Recorders – Ultra Models ................................................................................................. 7
1.6. Presentation Recorders – onnector Options ........................................................................................ 8
1.7. Presentation Recorders – Generation 1 vs. Generation 2 .................................................................... 10
1.8. Presentation Recorders – Phoenix onnector Wiring .......................................................................... 10
1.9. Presentation Recorders – Installation .................................................................................................. 11
2. Quick Start .................................................................................................................................................. 12
2.1. Startup ................................................................................................................................................. 12
2.2. Presentation Recorder Modes of Operation ......................................................................................... 14
3. Theory of Operation .................................................................................................................................... 17
3.1. Presentation Recorder omponent Block Diagram ............................................................................. 17
3.2. apture Module Function ..................................................................................................................... 17
3.3. ompression ........................................................................................................................................ 18
3.4. Transmission ........................................................................................................................................ 18
3.5. Decompression .................................................................................................................................... 18
3.6. Display Function ................................................................................................................................... 18
3.7. Audio Subsystem ................................................................................................................................. 18
3.8. Archive Flash Disk ............................................................................................................................... 18
4. Quick Start onfiguration and Setup .......................................................................................................... 19
4.1. Quick Start Page Organization ............................................................................................................. 19
4.2. hannel Selection ................................................................................................................................ 20
4.3. Source Selection .................................................................................................................................. 21
4.4. Streaming Start/Stop ............................................................................................................................ 22
4.5. Recording ............................................................................................................................................. 23
4.6. Status Bar ............................................................................................................................................ 23
4.7. ontrol Icons ........................................................................................................................................ 23
5. The hannel Table ..................................................................................................................................... 26
5.1. hannel Settings .................................................................................................................................. 26
5.2. Edit hannel – General ........................................................................................................................ 27
5.3. Edit hannel – Frame Size .................................................................................................................. 29
5.4. Edit hannel – Layout .......................................................................................................................... 30
5.5. Edit hannel – Profile .......................................................................................................................... 33
5.6. Edit hannel – ustomized Profile Settings ......................................................................................... 34
5.7. Edit hannel – Network ....................................................................................................................... 37
5.8. Edit hannel – RTMP Streaming ......................................................................................................... 39
5.9. Edit hannel – Automatic Unicast ........................................................................................................ 40
5.10. Edit hannel – Recording .................................................................................................................. 42
5.11. Edit hannel – Upload ....................................................................................................................... 45
5.12. Edit hannel – Notifications ............................................................................................................... 51
6. Archives ...................................................................................................................................................... 53
6.1. Archive Settings ................................................................................................................................... 53
7. onfiguration .............................................................................................................................................. 57
7.1. Personal ............................................................................................................................................... 57
7.2. Time ..................................................................................................................................................... 58
7.3. Network ................................................................................................................................................ 59
N ast orporation Revision 2.2
Page 2

NCast Presentation Recorder Reference Manual
7.4. Web ...................................................................................................................................................... 63
7.5. Display ................................................................................................................................................. 64
7.6. Telnet Settings ..................................................................................................................................... 66
7.7. Scheduler ............................................................................................................................................. 67
7.8. Presentation Server ............................................................................................................................. 72
7.9. Notifications .......................................................................................................................................... 74
7.10. ustom ............................................................................................................................................... 76
8. Status ......................................................................................................................................................... 79
8.1. System ................................................................................................................................................. 79
8.2. Network ................................................................................................................................................ 80
8.3. Event Logs ........................................................................................................................................... 80
8.4. Serial logs ............................................................................................................................................ 81
9. Sources ...................................................................................................................................................... 82
9.1. Video .................................................................................................................................................... 82
9.2. Audio .................................................................................................................................................... 83
9.3. Advanced ............................................................................................................................................. 84
9.4. Overlays ............................................................................................................................................... 86
9.5. Previews ............................................................................................................................................... 86
10. Viewer Interface and Media Players ......................................................................................................... 87
10.1. View Stream ....................................................................................................................................... 87
10.2. VL Media Player .............................................................................................................................. 88
10.3. Media Players .................................................................................................................................... 89
10.4. losed- aption Support ..................................................................................................................... 90
11. ustom Layouts ........................................................................................................................................ 93
11.1. Frame Layouts and Presets ............................................................................................................... 93
12. Presentation Recorder Interfaces ............................................................................................................. 99
12.1. Serial Interface ................................................................................................................................... 99
12.2. Telnet Interface .................................................................................................................................. 99
12.3. REST Interface – Archive Download ................................................................................................ 100
12.4. REST Interface – Image and Thumbnail apture ............................................................................ 100
12.5. REST Interface – Graphics Overlay Upload ..................................................................................... 100
12.6. REST Interface – Reference Manual ............................................................................................... 101
13. Techniques for Presentation apture .................................................................................................. 102
13.1. Webcasting, Podcasting and Archiving ............................................................................................ 102
13.2. apturing Graphics, Video and Audio .............................................................................................. 102
13.3. onference Day Problems and Issues ............................................................................................. 104
13.4. Video Post-Production ..................................................................................................................... 106
14. PR-HD First Generation .......................................................................................................................... 108
14.1. Backpanel onnectors ..................................................................................................................... 108
14.2. Main/PIP Input ompatibility hart .................................................................................................. 109
15. Terms and Definitions ............................................................................................................................. 110
15.1. Audio and Video Terms and Definitions ........................................................................................... 110
16. References ............................................................................................................................................. 112
16.1. MPEG ompression ........................................................................................................................ 112
16.2. Packet Transmission ........................................................................................................................ 112
16.3. Multicast ........................................................................................................................................... 112
17. Revision History ...................................................................................................................................... 113
N ast orporation Revision 2.2
Page 3

NCast Presentation Recorder Reference Manual
Regulatory Compliance Information
Equipment Label
The Presentation Recorder meets all applicable F , E and I AN radiation and emission
standards:
44366 S. Grimmer Blvd. Fremont, CA 94538
[phone] [phone] Fax
Report 30 4-1
Electromagnetic ompatibility Test Report
47 FR Part 2 Subpart J Paragraph 2.906
Report 30 4-2
Electromagnetic ompatibility Test Report
E D 2004/108/E , LVD 2006/95/E
(1) onnections between peripherals of this equipment may be made with low voltage non-
shielded computer data cables.
(2) Network connections may consist of non-shielded AT 5 cable.
Warnings
(1) A non-shielded power cord may be used to connect A power to every component and
peripheral of the system.
FCC NOTICE
This device complies with Part 15 of the F Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
FCC NOTICE – INFORMATION FOR THE USER
This equipment has been tested and found to comply with the limits for a lass A digital device,
pursuant to Part 15 of the F Rules. These limits are designed to provide reasonable protection
against harmful interference in a residential installation. This equipment generates, uses and can
radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following
measures:
(1)Reorient or relocate the receiving antenna.
(2)Increase the separation between the equipment and receiver.
(3) onnect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
(4) onsult the dealer or an experienced radio/TV technician for help.
The user may find the following publication prepared by the Federal ommunications ommission
helpful:
“How to Identify and Resolve Radio-TV Interference Problems”
Stock Number 004-000-00345-4, available exclusively from the Superintendent of Documents,
Government Printing Office, Washington, D 20402 (telephone [phone]).
FCC WARNING
hanges or modification not expressly approved by the party responsible for compliance to Part
15 of the F Rules could void the user’s authority to operate the equipment.
CE NOTICE – INFORMATION FOR THE USER
N ast orporation Revision 2.2
Page 4

NCast Presentation Recorder Reference Manual
This equipment has been tested and found to comply with the limits for a lass A digital device,
pursuant to EN 55022 Rules. These limits are designed to provide reasonable protection against
harmful interference when the equipment is operated in a commercial environment. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio
communications. Operation of this equipment in a residential area is likely to cause harmful
interference in which case the user will be required to correct the interference at the expense of
the user.
The user may find the following publication prepared by the Federal ommunication ommission
helpful:
“How to Identify and Resolve Radio-TV Interference Problems”
Stock Number 004-000-00345-4, available exclusively from the Superintendent of Documents,
Government Printing Office, Washington, D 20402 (telephone [phone]).
WARNING
hanges or modifications not expressly approved by the party responsible for compliance to EN
55022 Rules could void the user’s authority to operate the equipment.
ICAN Class A Digital Equipment
This lass A digital apparatus meets all requirements of the anadian Interference- ausing
Equipment Regulations.
et appareil numérique de la classe A respecte toutes les exigencies due Réglement sur le
matériel brouilleur du anada.
N ast orporation Revision 2.2
Page 5

NCast Presentation Recorder Reference Manual
1. Introduction
1.1. PURPOSE
The NCast Presentation Recorder Reference Manual is intended for the Audio/Video or Network engineer
who will be tasked with the job of installing and setting up a Presentation Recorder or a system of multiple
Presentation Recorders. This guide is designed to cover topics in depth and to assist in optimizing the
performance of a Presentation Recorder.
1.2. DOCUMENT OVERVIEW
This document is divided into two major sections: the theory of operation and a discussion of parameter
settings.
1.3. PRESENTATION RECORDERS – BASIC MODELS
The Presentation Recorder is a stand-alone network communications appliance which captures RGB (VGA),
omposite, omponent, DVI, HDMI, Displayport and optionally 3G-SDI signals from a desktop or laptop,
compresses the image with an industry standard compression algorithm, records the capture to a file,
packetizes and transmits the imagery as an internet media stream, receives a media stream from the
internet, decompresses the imagery, and presents the received information to a viewing audience through
use of a large-screen monitor or via a room projector. Presentation Recorders are able to archive the media
stream in real-time while simultaneously webcasting, allowing for playback by the recipient at a later date.
The following Presentation Recorder models are covered by this documentation:
PR-HD-Basic-R – A rack-mounted unit with streaming and archiving capabilities. The PR-HD-Basic-R
introduces support for up to WUXGA (192 x12 ) input resolutions with up to 1 8 p (192 x1 8 ) capture
resolutions and PiP (Picture In Picture) video and graphics overlay.
PR-HD-Basic-D – A rack-mounted unit with streaming and archiving capabilities. The PR-HD-Basic-D
introduces support for up to WUXGA (192 x12 ) input resolutions with up to 1 8 p (192 x1 8 ) capture
resolutions and PiP (Picture In Picture) video and graphics overlay. This unit has two independent and
identical encoders in a single 1U rack-mount chassis (each encoder and its power supply occupy ½ rack).
The dual-encoding capabilities of this model enables many different applications, for example:
N ast orporation Revision 2.2
Page 6

NCast Presentation Recorder Reference Manual
•Two independent HD encoders – With identical inputs, one encoder may be setup to stream and record a
high-bandwidth, high-resolution stream and the second encoder provides for a reduced resolution,
reduced bandwidth stream.
•Dual wide-screen delivery – One encoder transmits a hi-def camera stream, and the second transmits a
wide-screen presentation. Telepresence at a budget price!
•Synchronized Encoders – Two HD wide-screens side by side, giving a dual-HD panorama, or a 3D left-right
image.
•Two-way Interactive – One encoder is configured for streaming send, and the second is setup for
streaming receive.
•Fail-Safe System – Each encoder independently transmitting the same material. Should one fail, the
receivers can switch to the other.
•Hot Standby – A spare unit for critical applications.
PR-HD-Basic-P - A flange-mounted unit with streaming and archiving capabilities. This is a very
small form-factor chassis suitable for mounting on the walls of a podium, on top of or underneath a
podium shelf, in a mobile cart, or on a wall in an equipment room.
PR-HD-Basic-M - A desktop unit with streaming and archiving capabilities. This is a very small
form-factor case suitable for desktop or mobile cart applications.
All PR-HD Series units share a core operating system and base set of features. The mainboard and
connector set is similar for all units. Please review the product spec sheets for further details.
1.4. PRESENTATION RECORDERS – EXTREME MODELS
The Presentation Recorder Extreme has all the features of the Basic model but in addition will record in 1080
definition, stream in 1080 (but simultaneous recording and streaming at this resolution is not allowed). There
is also an HDMI output connector for an all-digital connection to a display monitor.
1.5. PRESENTATION RECORDERS – ULTRA MODELS
The Presentation Recorder Ultra has all the features of the Extreme (except HDMI Out) and in addition
supports 3G-SDI digital input.
N ast orporation Revision 2.2
Page 7

NCast Presentation Recorder Reference Manual
1.6. PRESENTATION RECORDERS – CONNECTOR OPTIONS
The following diagram describes the back-panel connectors available:
Backpanel for PR-HD-Basic-M, PR-HD-Basic-P
•Serial Control – Wired control from a touch panel, such as restron or AMX
•Ethernet – onnection to the Internet
•XLR Audio – Balanced XLR input connector and additionally a balanced 0.25” connector
•VGA – Input from the presenter's P
•VGA Loopback – VGA output, usually to the room projector
•VGA/Component Out – RGBHV or Y-Pb-Pr output to the local display
•USB – For specifying a static IP connection with a USB drive or saving an archive file
•Line-In, Line-Out, Mic-In - Unbalanced 3.5 mm. audio connections. Stereo for Line-In, Line-Out
•HDMI – Video input from cameras or computers, audio not supported
•DVI-D – Digital input
•DVI-A – Analog RGBHV input or Y-Pb-Pr component from a camera source
•Displayport – Input from the Displayport output of a computer
•SDI – 3G-SDI Serial Digital Input
•Composite – NTS or PAL input
Note: onversion of HDMI or DVI signals to Displayport requires an active (not passive) adapter.
N ast orporation Revision 2.2
Page 8

NCast Presentation Recorder Reference Manual
Backpanel for PR-HD-Basic-R, PR-HD-Basic-D
Backpanel for PR-HD-Extreme-M, PR-HD-Extreme-P
Backpanel for PR-HD-Extreme-R, PR-HD-Extreme-D
N ast orporation Revision 2.2
Page 9

NCast Presentation Recorder Reference Manual
Backpanel for PR-HD-Ultra-M, PR-HD-Ultra-P
Backpanel for PR-HD-Ultra-R, PR-HD-Ultra-D
1.7. PRESENTATION RECORDERS – GENERATION 1 VS. GENERATION 2
Earlier versions of the PR-720 and PR-HD Presentation Recorders had a different backpanel and connector
lineup. Documentation on these first generation units is found in hapter 14.
1.8. PRESENTATION RECORDERS – PHOENIX CONNECTOR WIRING
The Presentation Recorder rack mount models come with a Phoenix balanced audio connector.
N ast orporation Revision 2.2
Page 10

NCast Presentation Recorder Reference Manual
1.9. PRESENTATION RECORDERS – INSTALLATION
The diagram below shows a typical room installation:
N ast orporation Revision 2.2
Page 11

NCast Presentation Recorder Reference Manual
2. Quick Start
2.1. STARTUP
2.1.1. A Really Short Start
Here’s a very short description on how to get started:
1. Plug the unit into a network with DH P, plug in a display to the VGA Out, plug your laptop into the
VGA In, a camera (if you have one) into a video connector and turn on the power.
2. When you see the bootup screen with the IP network address, log into the unit at
http //ipaddress using “admin” as the user and “ncast” as the password.
3. On the Quick Start page select your hannel Layout, your Video Sources, your Audio
Sources and then press Streaming Start.
4. lick on the Streaming View button, press “Launch Quicktime Player in Window” and you’re
done!
2.1.2. Mini Start
This is a short introduction on how to get started with a Presentation Recorder:
1. Plug the unit into a network, plug in a display to the VGA Out, plug your laptop into the VGA In, a
camera (if you have one) into a video connector and turn on the power. If you aren’t using DH P
and need to enter static IP addresses, edit a “ntwkconf.txt” file onto a USB stick and plug it into a
USB port. See the Configuration → Network tab (7.3.16.) for details on this file.
2. When you see the bootup screen with the IP network address, log into the unit at
http //ipaddress using “admin” as the user and “ncast” as the password.
3. Go to the Configuration → Personal tab and fill in all the information required.
N ast orporation Revision 2.2
Page 12

NCast Presentation Recorder Reference Manual
4. On the Quick Start page select the hannel Layout you desire. The icons represent the composition
of the frame which will be recorded and allow for many different combinations of video inputs,
graphics inputs and graphical overlays.
5. The dialog box allows you to choose one of the unit's standard video profiles and permits you to
upload a custom graphical overlay to replace the factory default.
6. Select the Video and Audio sources you have connected to the recorder. The “Main” input is
normally associated with graphics capture and the PIP input usually contains the video camera. You
should see your captured graphics and video on the local display screen. heck your audio levels on
the meter.
7. Press the Streaming Start button to activate the stream.
8. lick on the Streaming View button, press “Launch Quicktime Player in Window”. This dialog box
allows you to connect different media desktop players using multicast protocol. If your network is not
multicast enabled you must be on the same LAN segment as the encoder. Your client player should
launch and you should see your captured graphics and video. For other client players, try clicking on
the “SDP” link.
9. You’re done!
2.1.3. Long Start
Read this whole manual from cover to cover (RTFM). There are hundreds of different configuration
options for a Presentation Recorder, allowing the setup and composition of many different formats,
resolutions, PIP options, layouts, bit-rates, frame-rates, start and stop and scheduling options and the
like. You can automatically upload your archives to a video server. You can tag your archives
automatically with course numbers and notes. You can add your own customized graphic overlays to
the captured graphics and video. Transmission can be automated so that all that is required is to
press the power-on button.
Please feel free to contact N ast orporation if you have any questions about the use or
configuration of the Presentation Recorder.
N ast orporation Revision 2.2
Page 13

NCast Presentation Recorder Reference Manual
2.2. PRESENTATION RECORDER MODES OF OPERATION
The Presentation Recorders have eight major modes of operation:
Record to File – The Presentation Recorder only records the file to storage. Once the
Session has ended the file may be automatically uploaded to a video-on-demand server for
later playback by client P s or mobile devices.
Send a Unicast or Multicast Stream – In this mode of operation one of the Presentation
Recorders is designated as the “Sender” and all of the other units are designated as
“Receivers”. The media streams originate from the Sender and are decoded by one or more
Receivers or desktop client media players. The transmission is strictly one-way, and no
feedback or interactivity is provided for. The one-to-many operation is enabled via use of
multicast connected networks. The unit is able to stream and record simultaneously.
N ast orporation Revision 2.2
Page 14

NCast Presentation Recorder Reference Manual
Send a Unicast or Multicast Stream and Record to File – This mode of operation is the
same as “Send a Unicast or Multicast Stream” with the addition of simultaneous recording
an archiving of the captured Session. The archive is first stored internally in local storage and
once the Session is finished the archive may be uploaded to a distribution server or to a locally
attached USB drive.
Send a Stream to an RTMP Server – For live streaming the Presentation Recorder sends an
RTMP protocol stream to a streaming server, DN or Presentation Server where fanout
occurs and the media is distributed to multiple receiving P 's or mobile devices. The server
MUST be located at a high-bandwidth point on the network to provide for multiple outbound
unicast streams, one for each attached receiver.
Send a Stream to an RTMP Server and Record to File – Supports live streaming using the
RTMP streaming protocol and in addition simultaneously records to create a local archive. See
the diagram and description above.
Send a Stream to an RTSP Server – For live streaming the Presentation Recorder sends an
RTSP protocol stream to a streaming server, DN or Presentation Server where fanout occurs
and the media is distributed to multiple receiving P 's or mobile devices. The server MUST be
located at a high-bandwidth point on the network to provide for multiple outbound unicast
streams, one for each attached receiver. See diagram above. The RTSP protocol has been
displaced by RTMP for most content distribution networks.
Send a Stream to an RTSP Server and Record to File – Supports live streaming using the
RTSP streaming protocol and in addition simultaneously records to create a local archive. See
the diagram and description above. The RTSP protocol has been displaced by RTMP for most
content distribution networks.
N ast orporation Revision 2.2
Page 15

NCast Presentation Recorder Reference Manual
Receive a Unicast or Multicast Stream – In this mode of operation the Presentation
Recorder is configured to receive a stream from another unit acting as a sender. The receiving
unit decodes and renders the composite image created by the sender and displays it on the
attached monitor. This configuration is frequently used to supply a display to an overflow room
or satellite classrom.
N ast orporation Revision 2.2
Page 16

NCast Presentation Recorder Reference Manual
3. Theory of Operation
3.1. PRESENTATION RECORDER COMPONENT BLOCK DIAGRAM
The Presentation Recorder consists of these main hardware functions:
apture Hardware – A custom designed, high-performance module is used to grab and digitize the RGB
or video signals created by the presenter or media source. This module accepts VGA, Y-Pr-Pb, DVI-I, HDMI,
PAL/NTS composite or PAL/NTS S-Video connections and converts those signals to YUV digital format.
Two of these inputs may be active simultaneously for generation of a picture-in-picture (PIP) display.
entral PU – A general-purpose ARM processor is used to compress and decompress audio streams,
to encapsulate and decapsulate outgoing and incoming packets streams, to enable the web interface, serial
interface and telnet interface, and to prepare data for display on the attached monitor. A highly secure open-
source operating system underlies and supports all of this functionality.
DSP – A custom DSP is used to compress and decompress YUV video and graphics images to H.264
streams.
Display Output Sub-system – Media streams, which are received and decoded, are presented on the
attached display for viewing. Both RGBHV and component output (Y-Pb-Pr) are supported.
Audio Sub-system – A sound system with stereo input-output capabilities and with support for
microphone and line-level inputs and line-level outputs is used to create the AA audio streams transmitted
in conjunction with the associated graphics or video imagery. Balanced XLR inputs are also supported
Ethernet Interface – Industry-standard ethernet connectors are used to connect the Presentation
Recorder with the Internet network used for communications.
3.2. CAPTURE MODULE FUNCTION
The capture module selects one of the available six inputs (VGA, DVI-D, DVI-A, HDMI, omposite, S-Video)
and locks onto the signal. The signal is converted into the appropriate digital formats, and each pixel in the
image is stored in a local memory buffer on the module. Any required sizing and re-scaling is done in the
module. At an appropriate time the pixels in module are transferred to the DSP where they are processed
and compressed.
N ast orporation Revision 2.2
Page 17

NCast Presentation Recorder Reference Manual
If PIP mode is enabled, two signals may be selected (exceptions: omposite and S-video share one video
decoding chip and are the same signal, VGA and DVI-A share one input chip and are the same signal).
3.3. COMPRESSION
The digitized RGB signals are converted in format from an {R,G,B} representation to {Y,U,V}. Industry-
standard compression algorithms implemented in the DSP are then used to reduce the source data to a
more manageable size, and to generate sequences of I-P-B frames found in MPEG-4 media streams.
3.4. TRANSMISSION
The MPEG media stream is split into segments, which are then encapsulated into RTP packets according to
the protocol standards set forth in IETF RF 3016 or RF 3984 (H.264). These packets are presented to the
Ethernet hardware interface for subsequent transmission on the attached IP network.
3.5. DECOMPRESSION
The received packet stream is decompressed and the resulting image is placed into a video frame buffer. At
that instant it will become visible to the receiving viewers.
3.6. DISPLAY FUNCTION
The display will output imagery from two different sources. If the unit is configured as the sending unit, a
local copy of the captured image (prior to compression, but after capture and conversion to digital format) will
be displayed. If the unit is a receiving unit, the displayed image will be from the remote sender.
3.7. AUDIO SUBSYSTEM
Each Presentation Recorder supports an audio subsystem consisting of an high-quality codec and
associated input/output connectors. The unit has microphone and line-level input signals, and a line-level
output signal. Each line-level connector supports stereo signals. An XLR connector provides for mono
balanced audio input. Audio input via the HDMI connector is not currently supported.
3.8. ARCHIVE FLASH DISK
A flash memory card in the Presentation Recorder is available for recording transmitted sessions. The file
format is standard MPEG-4 Part 10 (H.264, .mp4), which can be played on a variety of desktop client
players, or these same files can be installed on a video-streaming server for on-demand playback over the
Internet. All unit come with 32 GB of storage standard, and an additional 32 GB of storage may be
purchased as an option.
N ast orporation Revision 2.2
Page 18

NCast Presentation Recorder Reference Manual
4. Quick Start Configuration and Setup
4.1. QUICK START PAGE ORGANIZATION
The Quick Start page is the primary control page for the Presentation Recorder and has six distinct
functional areas:
•Channel Selection – A hannel is a preset or template containing all layout and startup parameters
•Source Selection – Input connectors are assigned to the active windows in a video frame
•Streaming Control – Streaming session activity on a hannel is started or stopped
•Recording Control – Recording of a session on a hannel is started, paused or stopped
•Status Bar – A real-time display of session activity and input signal status
•Control Icons – Special controls to power-off the unit, reboot and several other functions
With the Quick Start page the sequence of operations required to activate a streaming/recording session
may be summarized as follow:
1. Select a hannel layout.
2. Select the appropriate video and audio sources.
3. Start a streaming session.
4. Start recording.
5. Stop recording.
6. Stop the streaming session.
N ast orporation Revision 2.2
Page 19
Channel Presets/Templates
Control Icons
Status Bar
Video/Audio Source Selection
Streaming Controls
Recording Controls

NCast Presentation Recorder Reference Manual
4.2. CHANNEL SELECTION
A hannel is a preset containing all the layout and startup parameters needed for a streaming or recording
session. There are seven categories of channel parameters:
•General – The hannel name and the type of hannel operation desired.
•Layout – The frame size, aspect ratio, position of the Main and PIP windows and graphical overlays.
•Quality – The video and audio quality desired and respective bit-rates.
•Network – The hannel's multicast or unicast addresses.
•Recording – Archive filenames and other recording parameters.
•Upload – Disposition of the archive file once the recording has completed.
•Notifications – Email messages to the administrator of the hannel.
The Quick Start page allows for a limited selection of factory default settings. More comprehensive
modifications to a hannel are done from the Channels tab.
The first dialog box allows selection of a number of standard bit-rates and the upload of custom graphics for
overlay.
Select the lower speeds for material that is mainly graphics and the higher bit-rates for video material.
N ast orporation Revision 2.2
Page 20