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Related Manuals for Video Clarity RTM-1RU
Summary of Contents for Video Clarity RTM-1RU
- Page 1 Real-Time Monitor (RTM) System Guide Copyright © 2009-2013 Video Clarity, Inc.
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Page 2: Table Of Contents
TABLE OF CONTENTS TABLE OF CONTENTS ..........................2 REAL TIME MONITORING (RTM) SYSTEM HARDWARE QUICK SETUP GUIDE SOFTWARE QUICK SETUP GUIDE TYPICAL APPLICATIONS ......................8 URATION ESTING ......................8 ROADCAST ONITORING 4.2.1 Reference Content Caused the Error ..................8 4.2.2 Processing Content Caused the Error .................. -
Page 3: Real Time Monitoring (Rtm) System
Real Time Monitoring (RTM) System At the processing layer, problems arise when down-converting HD to SD, changing formats, and compressing the signal into the available bandwidth. Also the separate processing of audio, video, and data can lead to synchronization problems. At the transmitting layer, broadcasters encounter their familiar RF problems with a new challenge - coverage and interference problems caused by more channels at lower powers. -
Page 4: Hardware Quick Setup Guide
2 Hardware Quick Setup Guide Figure 1: RTM-1RU Back Panel Figure 2: RTM-1RU Front Controls Figure 3: RTM-3G Back Panel Figure 4: RTM-2RU Back Panel (supplied with 5 SMB to BNC conversion cables - 13cm (7”) To operate RTM (regardless of model):... -
Page 5: Software Quick Setup Guide
3 Software Quick Setup Guide Figure 5: RTM Running After launching the RTM application if it not set for automatic start, then all you have to do is press the Start button in the Control pane. Pressing Start will include a full alignment, which independently aligns the audio and video streams. Upon completion, the alignment pane is updated: The video offset is noted in frames The audio alignment with respect to the video offset is noted in samples, frames, and time... - Page 6 an audio alert is generated, the status on the 1RU’s front panel is updated, and a log file (.psnr or .audio) is created which contains the difference values for the created recordings. This log file can be dragged/dropped onto ClearView for easy setup and post-anlysis. It is expected that the incoming signals will drift from each other over time.
- Page 7 Figure 7: Detected Impairment Example (top-bottom view from ClearView) The log files are saved in the ClearView Video Analysis format, which means that they can be played back using: The included RTM Player application, or Further analyzed using ClearView, which can generate detailed reports. 4/08/2013 Rev.
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Page 8: Typical Applications
4 Typical Applications 4.1 Long Duration Testing What would happen if the video processing units did not produce an error for several hours or days? Perhaps a particular set of input data sent at just the wrong time was needed to create the problem. This type of problem is very difficult to replicate, but it will be the first problem that your customer’s find. -
Page 9: Processing Content Caused The Error
4.2.2 Processing Content Caused the Error By putting traffic on the network or by over-compressing the reference, the received (set-top box output) may have breakups. The only way to find these is to monitor every channel at the end-points and then diagnose problems backwards in time until you find the problem. -
Page 10: Setting Rtm Parameters
5 Setting RTM Parameters Upon startup, RTM will launch with the configuration from the last time that it was operating. The parameters on this page, can be changed while, the system is running. 5.1 RTM Status Figure 10: RTM Status Pane Status Messages This is the current status of each type of error. -
Page 11: Rtm Alignment
5.3 RTM Alignment Figure 12: RTM Alignment Re-Align All This button does a full alignment of the video and audio. Align Video This button aligns the videos but does not align the audios Align Audio This button aligns the audios assuming that the current video alignment is correct. -
Page 12: Rtm Audio Quality
NOTE: there are more parameters under the Configure Sequence Creation Pane. NOTE2: Dynamic re-alignment may notice that the video is not aligned and reset the error counter after making a correction. 5.5 RTM Audio Quality Figure 14: RTM Audio Quality Status These are status message which display the current audio quality score for each active audio channel. -
Page 13: Setting Normal Configuration Parameters
6 Setting Normal Configuration Parameters Pressing Config from the main RTM page, lets you setup the general configurable parameters. Each of these will be discussed in this section. 6.1 Inputs Pane Figure 15: Video Input Pane Video Input SDI Input is the hardware input ClearView Sequence is the file input. - Page 14 RTM needs to detect and compensate for this shift before the monitoring begins. NOTE: if you know the spatial offsets, you can uncheck this box and simply type in the values on the main RTM page’s alignment pane. Max X, Max Y This is the maximum horizontal and vertical search range for spatial alignment.
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Page 15: Dynamic Realignment Pane
6.3 Dynamic Realignment Pane Figure 17: Dynamic Realignment Pane Enable Dynamic Re-Alignment Checking this box will enable a dynamic re-alignment if the video quality drops for X number of consecutive video quality failures. NOTE: this can happen if the source changes or if the inputs are not genlocked. -
Page 16: Video Metric Pane
6.4 Video Metric Pane Figure 18: Video Metric Pane Video Components Checking these boxes will enable/disable the measurement of the various components. NOTE: you must check at least 1 box or video quality will not be measured. PSNR Metric Window This defines the area where the video quality will be measured. -
Page 17: Audio Metric Pane
6.5 Audio Metric Pane Figure 19: Audio Metric Pane Audio Channels Checking these boxes will enable audio quality measurements on any of the inputs. The algorithm performs quality measurements assuming mono for each channel (i.e. each channel is judged separately). Frequency Analysis To measure the audio quality this algorithm measures the frequency/amplitude response of the two streams and then correlates... -
Page 18: Vanc Metric Pane
NOTE: this is normally turned off. Soften This flag enables the detection of loudness/softness before performing audio PSNR. 6.6 VANC Metric Pane Figure 20: VANC Pane Enable VANC This flag enables VANC processing VANC Checking these boxes will enable VANC quality measurements on any of the inputs. -
Page 19: Sequence Creation Pane
6.7 Sequence Creation Pane Figure 21: Sequence Creation Pane Record Library This is the library where the recorded sequences are stored upon error. NOTE: One library must be located on the “G: array” and the other must be on the “H: array”. To create new libraries, use the ClearView Library Manager. -
Page 20: Logs And Alerts Pane
Max allowable audio threshold This value defines how many video quality failures are needed to failures trigger a recording within the Minimum Capture Frames. Max allowable consecutive audio This value defines how many consecutive video quality failures are failures needed to trigger a recording within the Minimum Capture Frames. NOTE: consecutive failures should be set lower than allowable failures. - Page 21 Use GDI Graphing and Previews Most of the time, RTM uses DirectX. Some machines do not operate properly, with DirectX. If your Video Clarity support engineer tells you to check this box, RTM can run in Graphics Device Interface (GDI) mode, which is the older way.
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Page 22: Log Files
7 Log Files RTM creates five types of log files which are useful for a variety of things. RTMLog.log PSNRAvg.log AudioAlign.log .psnr Log file when a sequence is create due to a video error .audio Log file when a sequence is created due to an audio error 7.1 RTMLog.log This is the main status log for RTM. -
Page 23: Psnr And Audio Iles
ClearView for easy synchronized playback and post analysis. ClearView PSNR Log File (V7.0) 10/15/10 15:53:41 Created by Video Clarity Realtime Monitor 1.0 10/08/2010 Video Output Device: Broadcast Output Module Video Output Format: 720p 60.00 Hz. - Page 24 Any .psnr or .audio file can be dragged onto the RTM Player application for detailed post analysis. The RTM Player is included on your RTM system. Figure 22: RTM Player Application 4/08/2013 Rev. 2.5 24 of 28...
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Page 25: Command-Line Interface
8 Command-Line Interface The monitoring process can also be programmatically controlled via scripting by using RTMServer.exe and rtm.exe 8.1 RTMServer.exe Once started, RTMServer.exe will receive commands from rtm.exe (the client) and allow scriptable control of the RTM system. This allows the ability for multiple units to be controlled from a single controller application. -
Page 26: Commands Detailed
VANCDuration Sets the VANC on/off SpatialX Sets or Displays the SpatialX offset SpatialY Sets or Displays the SpatialY offset VideoImpairments Reports the number of video impairments and the data/time of the last one AudioImpairments Reports the number of audio impairments and the data/time of the last one LipSyncErrors Reports the number of lip sync errors and the data/time of the last... -
Page 27: Saveconfig
If the path has spaces in it then the path needs to be enclosed by double quotes 8.3.3 SaveConfig Description: Saves the full RTMonitor configuration Syntax: saveConfig <cPath> Input: cPath Full path to save an RTM configuration file Output: Received:Success Received: Failure rtm saveConfig “C:\LongTest.reg”... -
Page 28: Rtm From File
9 RTM from File 9.1 RTM from File RTM from file is very easy. RTM will need to be in stop mode and you will go into the Configuration Menu. At the top of this menu you will choose the Video Input, by default it is set to SDI, you will change this to “Clearview Sequence”.