Summary of Contents for Snell IQSYN21
- Page 1 User Instruction Manual IQSYN21 HD/SD-SDI Frame Synchronizer with Embedded Audio Processing snellgroup.com...
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Page 2: Information And Notices
Information in this manual and software are subject to change without notice and does not represent a commitment on the part of Snell Limited. The software described in this manual is furnished under a license agreement and can not be reproduced or copied in any manner without prior agreement with Snell Limited. -
Page 3: Table Of Contents
4. Card Edge LEDs ........... . 15 5. Controlling the IQSYN21 from the RollCall Control Panel ....16 5.1 The Information Window . - Page 4 Appendix A. RollTrack Audio Delay Tracking ......58 © Issue 2 Rev 2 Page 4 2014 Snell Limited...
- Page 5 E.6 Metadata ............75 © Issue 2 Rev 2 Page 5 2014 Snell Limited...
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Page 6: Introduction
SDI containing PCM and Dolby E embedded audio. The IQSYN21's flexibility in its rate-agile HD and SD support means that 16, 20 and 24-bit audio sources can all be handled. PCM audio can be processed alongside Dolby E and other non-PCM signals with selection made on a pair-by-pair basis. -
Page 7: Order Codes
HD-SDI and SD-SDI Synchronizer with Embedded Audio IQSYN2127-2A Processing. 4 outputs, 2 GPIs. HD-SDI and SD-SDI Synchronizer with Embedded Audio Processing IQSYN2139-2A and relay input bypass. 4 outputs, 2 GPIs. © Issue 2 Rev 2 Page 7 2014 Snell Limited... -
Page 8: Rear Panel View
IQSYN21 www.snellgroup.com Introduction 1.3 Rear Panel View The following rear panel types are available: IQSYN2126-1A IQSYN2127-2A IQSYN2139-2A © Issue 2 Rev 2 Page 8 2014 Snell Limited... -
Page 9: Enclosures
1.4.1 B-style Enclosure Enclosure order codes: IQH3B-S-0, IQH3B-S-P 1.4.2 A-style Enclosures Enclosure order code: IQH1A-S-P Enclosure order codes: IQH3A-S-0, IQH3A-S-P Enclosure order codes: IQH3A-E-0, IQH3A-E-P, IQH3A-0-0, IQH3A-0-P Enclosure order code: IQH1A-S-P © Issue 2 Rev 2 Page 9 2014 Snell Limited... -
Page 10: Features
Can be used as a video delay without synchronization, up to 11 frames • Video processing controls including video gain and offset • In-built test pattern generator • 16x user memories © Issue 2 Rev 2 Page 10 2014 Snell Limited... -
Page 11: Technical Specification
1.5 Gbps HD-SDI, SMPTE 292M 270 Mbps SDSDI, SMPTE 259M-C Connector / Format BNC / 75 Ohm panel jack on standard Snell connector panel Input Cable Length Up to 140 m Belden 1694A @ 1.5 Gbps (40 m input cable length and 35 m output cable length, relay bypass version. - Page 12 GPI Output Produces an output for: Input 1 / 2 OK, Reference OK Freeze, Pattern, Black, Monochrome, Input 2 Selected User memories 16x Save / Recall / Rename RollCall Features © Issue 2 Rev 2 Page 12 2014 Snell Limited...
- Page 13 Minimum 3 ms (PCM), 0.75 ms (Data), Maximum 2.5 s Channel Status Information Handled and checked Power Consumption Module Power Consumption 10 W (max.) 10.5 W (max.) - Relay Bypass Version © Issue 2 Rev 2 Page 13 2014 Snell Limited...
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Page 14: Connections
IQSYN21 www.snellgroup.com Connections 3. Connections This section describes the physical input and output connections provided by the IQSYN21. 3.1 IQSYN2126-1A / IQSYN2127-2A / IQSYN2139-2A 3.1.1 SDI Inputs Serial digital inputs to the unit are made to the unit via two BNC connectors which terminate in 75 Ohms. -
Page 15: Card Edge Leds
This LED may be briefly illuminated in transitional states like standard changes. Continuous illumination indicates a problem. More information is available in the status window. Green Indicates that the module is operating correctly. © Issue 2 Rev 2 Page 15 2014 Snell Limited... -
Page 16: Controlling The Iqsyn21 From The Rollcall Control Panel
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5. Controlling the IQSYN21 from the RollCall Control Panel 5.1 The Information Window The information window is displayed in the upper-right corner of each screen and displays basic information about the input status, video, audio and reference status of the module. -
Page 17: Audio Status
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.1.2 Audio Status When Audio Status is selected, the status of the embedded audio input is displayed where: Name Status Description Audio Input Channel is a PCM audio input. Emb: No audio input is detected. -
Page 18: Video Input
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.2 Video Input The Video Input screen enables you to specify the settings for the video inputs: • Selection of input source. • Enable any specified backup rules. • Specify the input loss conditions. -
Page 19: Agile V-Lock
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.2.4 Agile V-Lock This function is intended to permit correct reception of upstream switched misaligned 625/25i and 525/29i sources without picture disturbance. In HD standards, a mechanism is in place to re-synchronize after a switch, which makes this mode unnecessary. -
Page 20: Input Backup
Controlling the IQSYN21 from the RollCall Control Panel 5.3 Input Backup The Input Backup screen enables the IQSYN21 to be configured to detect if the input signal on Master (Inp 1) fails and automatically switch to the Backup (Inp 2) signal. -
Page 21: Backup State Select
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.3.3 Backup State Select This reflects the overall status of the Backup (Inp 2) Select controls, which are: • Master (Inp 1) Carrier Detect Fail • Master (Inp 1) Invalid Standard •... -
Page 22: Master (Inp 1) Error
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.3.8 Master (Inp 1) Error When this option is enabled, Backup (Inp 2) will be selected if the signal on Master (Inp 1) is in error and in error for more than the time specified by the Delay control. -
Page 23: Video Output
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.4 Video Output Use the settings on the Video Output screen to: • Specify the video output standard. • Set up the test pattern, if any, to be generated. •... -
Page 24: Output Standard
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 1125(1080)/24p 525(480)/29i 1125(1080)/24sf 625(576)/25i 1125(1080)/23p 5.4.2 Output Standard This function defines how the output standard is selected. • Manual Selection: When selected, the output standard is the one selected via the Output/Output Standard list. -
Page 25: Procamp
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.4.5 ProcAmp This function allows the gain and black level of the signal to be adjusted. • Master Gain: This enables the overall gain (Y and Cb/Cr) to be adjusted over a range of ±6 dB in steps of 0.1 dB. -
Page 26: Embedded Proc Amp Groups 1-2 And 3-4
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.5 Embedded Proc Amp Groups 1-2 and 3-4 The Embedded Proc Amp Groups 1-2 and 3-4 screens enable the gain of the 16 embedded audio channels to be adjusted. They also enable phase inversion and instant mute to be applied to any channel. -
Page 27: Audio Mixer 1-4
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.6 Audio Mixer 1-4 The Audio Mixer 1-4 screens enable new, mixed audio feeds to be created from the incoming audio channels. This is useful when, for example, stereo incoming feeds are required in mono or discrete surround-sound feeds are required in stereo. -
Page 28: Embedded Routing Groups 1-2 And 3-4
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.7 Embedded Routing Groups 1-2 and 3-4 The Embedded Routing Groups 1-2 and 3-4 screens enable the signal sources for the SDI embedder to be selected from a list. Mute and audio tones may also be selected. The channels can be selected individually for total control over the embedded audio. -
Page 29: Embed On/Off
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.8 Embed On/Off The Embed On/Off screen enables you to specify how the module handles the embedding of audio into the output HD-SDI or SD-SDI video stream. The audio inputs are arranged into four groups, comprising two channel pairs each. -
Page 30: Embedded I/P Setup
Embedded audio is a pair-based system. This means that they carry the sound as two channels and it is not possible to carry just one channel. Of course, the IQSYN21 can pass and process either channel as well as both. This is because the module is channel-based internally. - Page 31 IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel • PCM: The pair will be treated as PCM audio by the module. PCM processing can be either channel-based or stereo-based. By default, channels are configured as stereo pairs. To switch to channel-based processing, clear the Stereo check box. PCM mode allows audio-specific operations, such as gain and tracking delay, to be adjusted by means of the Mixers and Proc Amps.
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Page 32: Embedded O/P Setup
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.10 Embedded O/P Setup The Embedded O/P Setup screen enables the names of the embedded audio outputs to be changed from the default names (Embed 1, etc.). By default audio outputs are designated as stereo pairs. -
Page 33: Video Delay/Dolbye/Genlock
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.11 Video Delay/DolbyE/Genlock The Video Delay/DolbyE/Genlock screen enables control of the video delay, Dolby E and Genlock functions. As a frame-based video synchronizer with up to 11 frames of storage, there are many possibilities for timing the output video. -
Page 34: Genlock
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.11.1 Genlock The Genlock function enables you to specify the Genlock or Video Delay mode, which defines the source of timing for the output video. • Free Run: This is a special case of referenced type mode. When selected, the unit's output will not be locked to any input signal. -
Page 35: Delay Timing
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.11.2 Delay Timing The Delay Timing function is only available in Lock to Reference and Lock to Input modes. It enables you to specify the vertical and horizontal timing, which enables video delay to be adjusted in steps of one line. -
Page 36: Dolby E Auto Line
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel Standard Switch Point Early Line Normal Line Late Line 720/59.94p <23 >73 All HD standards use line 7 for the frame switching line. Unsupported frame rates are: 23.98, Note: 24, 30, 60 in i or p or sf standards. -
Page 37: Audio Delays
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.12 Audio Delays The Audio Delays screen enables control of audio delay. There are eight separate delay blocks provided by this module. Each delay block processes a pair of PCM audio channels or one non-PCM data feed. The delay blocks can be controlled by one of two composite control feeds that permit external adjustment, and an internal matching delay option. -
Page 38: Audio Delay Select - A/B
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel Having two delay controls is a unique feature that allows audio to be timed to, or synchronized with, one of two separate timing planes. Options are: having no audio delay, having all the audio delayed together, having some audio delayed and some not. -
Page 39: Embed Delay 1 To 8
• Playout Chain Case: An IQSYN21 is used as a post-switch firewall in an agile setting. Use of Mixed mode, whilst disabling procamps, provides for clean switching between PCM and Data such as Dolby E. Provided that the decoder can change modes cleanly it is possible to have a "hot"... - Page 40 IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel There are additional controls which should be selected for reliable operation in the presence of other ancillary data, in particular for standard definition video: • Embedder Priority (Embed On/Off page) should be set to Audio. This will prioritise audio packet insertion so the requested line is always available.
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Page 41: Anc Blank & Bridge
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.13 ANC Blank & Bridge The ANC Blank & Bridge screen allows the line position of various signaling functions to be selected, and the detection and re-insertion of packet-based ancillary data on the output. This should not be used for packet types already processed (708. -
Page 42: Blank Lines
Blank HANC: When selected, removes horizontal ancillary data (HANC). • Pass: When selected, enables ancillary data to pass unaltered. The pass-through operations will not alter audio packets for groups that the IQSYN21 has not selected for embedding. • Blank All on STD mismatch: When checked, removes all ancillary data, if the input signal fails to match the output standard. -
Page 43: Gpio
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.14 GPIO The GPIO screen enables the General Purpose Input/Output functions to be configured. 5.14.1 GPIO 1 and GPIO 2 This enables GPIO ports to be configured: • Unused: The GPIO port is inactive. -
Page 44: Gpi 1 (Output) And Gpi 2 (Output)
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel • MonoChrm CbCr Only: The output picture becomes monochrome using only the CbCr components of the signal. When released (input open) the picture reverts to normal color. • Use I/P Ref (SDI): When initiated, the unit locks to the video input. When released (input open) this state remains, i.e. -
Page 45: Gpio Interface Circuitry
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.14.5 GPIO Interface Circuitry © Issue 2 Rev 2 Page 45 2014 Snell Limited... -
Page 46: Memory
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.15 Memory The Memory screen enables up to 16 setups to be saved and recalled later. Default memory names can be changed to provide more meaningful descriptions. 5.15.1 Recall Memory This column lists the settings that have been previously saved. -
Page 47: Save Memory Name
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.15.4 Save Memory Name This option enables the pre-set memory names to be changed (to something more memorable or meaningful), if required. To change a memory name: In the Save Memory Name field, type the new memory name, and then click the S button. To return the memory to its default preset value, click P button. -
Page 48: Rolltrack
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.16 RollTrack The RollTrack screen allows information to be sent, via the RollCall™ network, to other compatible units connected on the same network. 5.16.1 Disable All When checked, all RollTrack items are disabled. -
Page 49: Rolltrack Address
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel Freeze is applied manually, or by input loss, or invalid as determined O/P Freeze by the In/Out Std. Mismatch and Valid Input Standards settings. RollTrack is sent on selection of Input 1 or Input 2. -
Page 50: Rolltrack Sending
The message is not being sent. The message is being sent. Internal Type Error Inconsistent behavior. Please contact your local Snell agent. 5.16.7 RollTrack Status A message is displayed here to indicate the status of the currently selected RollTrack index. -
Page 51: Logging
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.17 Logging Information about several parameters can be made available to a logging device that is connected to the RollCall network. Each logging screen comprises three columns: • Log Enable: Select the check boxes that correspond to the parameters for which log information should be collected. -
Page 52: In1/2 Aud Type Logging
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.17.3 In1/2 Aud Type Logging The In1/2 Aud Type Logging screens display the type log values for the embedded audio on each input. 5.17.4 O/P Aud Level Logging The O/P Aud Level Logging screen displays the current log information for the level of the embedded audio output. -
Page 53: O/P Aud State Logging
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.17.5 O/P Aud State Logging The O/P Aud State Logging screen displays the current log information for the state of the embedded audio output. 5.17.6 O/P Aud Type Logging The O/P Aud Type Logging screen displays the current log information for the type of the embedded audio output. -
Page 54: Ref/Output Logging
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.17.8 Ref/Output Logging The Ref/Output Logging screen displays the current log information for the status of the video output and the reference signal. 5.17.9 Misc. Logging The Misc. Logging screen displays the current log information about the unit’s basic parameters. -
Page 55: Log Field Descriptions
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.17.10 Log Field Descriptions Log Field Description INPUT_N_TYPE= This displays the type of input as specified by the unit’s configuration. Valid values are HD /SD SDI. INPUT_N_STATE= Displays the current input state. Valid values are: •... - Page 56 IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel Log Field Description OUTPUT_1_EMBEDDED_AUDIO_1_TYPE= These fields display the current embedded input audio state. Valid values are: OUTPUT_1_EMBEDDED_AUDIO_8_TYPE= • • NONPCM • WARN:No Input OUTPUT_1_EMBEDDED_AUDIO_1_DOLBY= These fields display the current embedded input audio state.
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Page 57: Setup
IQSYN21 www.snellgroup.com Controlling the IQSYN21 from the RollCall Control Panel 5.18 Setup The Setup screen display basic information about the module, such as the serial number and software versions. Use the functions on the screen to restart the module or return all settings to their factory or default settings. -
Page 58: Appendix A. Rolltrack Audio Delay Tracking
Appendix A. RollTrack Audio Delay Tracking A.1 Introduction RollTrack is a feature of RollCall™ (Snell's proprietary remote control system) that allows devices to communicate across the RollCall network with no direct user intervention. RollTrack Audio Delay Tracking enables RollCall™ compatible audio delay products to track delay introduced by RollCall™... -
Page 59: Configuration: Vertical Delay Cluster
The manual delay can be set to compensate for any fixed propagation delay in the video path or may be set to zero. © Issue 2 Rev 2 Page 59 2014 Snell Limited... -
Page 60: Configuration: Matrix Delay Cluster
ID or else the command will be ignored. If the ID value is set to 00, the receiving unit does not perform an ID match and will always accept the incoming command. Select the Delay... Menu of the IQBDAD. Select RollTrack. © Issue 2 Rev 2 Page 60 2014 Snell Limited... - Page 61 0000:10:07*16*54 0000:10:07*17*54 Audio delay 5 0000:10:09*14*54 0000:10:09*15*54 0000:10:09*16*54 0000:10:09*17*54 Audio delay 6 0000:10:0B*14*54 0000:10:0B*15*54 0000:10:0B*16*54 0000:10:0B*17*54 Audio delay 7 0000:10:0D*14*54 0000:10:0D*15*54 0000:10:0D*16*54 0000:10:0D*17*54 Audio delay 8 0000:10:0F*14*54 0000:10:0F*15*54 0000:10:0F*16*54 0000:10:0F*17*54 © Issue 2 Rev 2 Page 61 2014 Snell Limited...
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Page 62: Configuration: An Array Of Matrix Clusters
IQSYN21 www.snellgroup.com RollTrack Audio Delay Tracking A.7.1 Configuration: An Array of Matrix Clusters The most complex system would be an array of matrix delay clusters. © Issue 2 Rev 2 Page 62 2014 Snell Limited... - Page 63 IQSYN21 www.snellgroup.com RollTrack Audio Delay Tracking © Issue 2 Rev 2 Page 63 2014 Snell Limited...
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Page 64: Appendix B. Firewall
B.3.1 Using a Firewall at the Beginning of a Chain Snell firewalls are excellent for use at the beginning of a chain of units, significantly improving the time to restore an output when a problem is detected at the input. -
Page 65: Performance Of Firewall Equipped Products Versus Genlock Mode
Firewall uninterrupted, it is accepted that there is a wide variety of real-world performances. Therefore the reference product used to test whether the output streams are continuous is the Snell IQMUX01 for both AES and SDI signals. B.5 Performance of Firewall Equipped Products Versus Genlock Mode... -
Page 66: Appendix C. Ancillary Passing
EDH, timecode and UMID labels making the insertion and passing a complex process. Processing of audio by the IQSYN21 requires the reinsertion of the audio into the passed ancillary data. This is essentially separate from the extraction of audio from the input video, and allows the embedded audio to be firewalled when input disturbances force blanking of ancillary space. - Page 67 Embedded ancillary data that does not conform to the space formatting requirements of SMPTE 291M may not be recognized, and so could be destroyed by the IQSYN21 card. For example, if the data packets do not start immediately following the EAV marker the inserter will overwrite the packets.
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Page 68: Appendix D. Audio Processing Overview
IQSYN21 www.snellgroup.com Audio Processing Overview Appendix D. Audio Processing Overview D.1 Audio Processing Block Diagram D.2 Audio Processing – Control Panel Screens Associations © Issue 2 Rev 2 Page 68 2014 Snell Limited... -
Page 69: Sdi Demultiplexer
Embedded audio handling for HD is 24-bit synchronous 48 kHz to SMPTE 299M and SD is Note: 20-bit synchronous 48 kHz to SMPTE 272M-A. © Issue 2 Rev 2 Page 69 2014 Snell Limited... -
Page 70: Audio Delay Processor
Manual: A delay set by the Manual Delay control will be applied. • RollTrack: A delay set by external RollTrack commands will be applied. • GPI Pulse Width: A delay set by the GPI Pulse width control will be applied. © Issue 2 Rev 2 Page 70 2014 Snell Limited... -
Page 71: Tone Generator
4 kHz at -20 dBFS • 1 kHz at -18 dBFS • 2 kHz at -18 dBFS • 4 kHz at -18 dBFS The frequency and level of these signals is not adjustable. Note: © Issue 2 Rev 2 Page 71 2014 Snell Limited... -
Page 72: Mixers 1 To 4
The two channels are processed as Left and Right with control of Gain, Inversion, Muting and a Stereo mode. The outputs are configured as eight, 2-channel signals in four groups and these are fed to the Multiplexer where they are embedded onto the SDI signal. © Issue 2 Rev 2 Page 72 2014 Snell Limited... -
Page 73: Sdi Tx
The IQSYN21 is well equipped to deal with issues of carrying Dolby E audio within a broadcast environment. It has the tools required for the correct and easy handling of Dolby E in the following features: •... -
Page 74: Appendix E. Dolby E
If the supported word length is 16 bits, the two channels together will offer a bandwidth of 1.536 Mbps, which Dolby E can use to carry six discrete audio channels plus metadata (descriptive and playback-control data related to the audio). © Issue 2 Rev 2 Page 74 2014 Snell Limited... -
Page 75: Dolby Digital And Ac3
DTV has to offer, whether viewers own mono, stereo, or 5.1-channel audio system. © 2005 Dolby Laboratories, Inc. All rights reserved. © Issue 2 Rev 2 Page 75 2014 Snell Limited...
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