882 Video Test Instrument User Guide
(Rev A.35)
319
Testing display (sink) devices
The 882 can emulate a source device in order to test an HDMI display device’s auto
lipsync correction handling. With this capability, an HDMI display device can be tested for
proper audio and video synchronization using a lipsync test image.
A display's EDID provides audio and video latency fields in the HDMI vendor specific data
block of the CEA extension block. Upon reading the EDID, the 882 uses an embedded
application to process the audio and video latency values and compensates for the
difference within a generated lipsync test image. Using a blinking white box and an audible
beep, the lipsync test image allows you to assess proper audio/video synchronization at
the display. The illustration below depicts this application.
To test display device auto lipsync correction:
1. Establish a session with the 882 using either HyperTerminal over a serial connection or
Telnet over an Ethernet LAN. See “
Establishing a terminal session with the 882
Establishing a Telnet session with the 882
2. Connect the 882 HDMI output (Tx) port to the display device.
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Summary of Contents for 881
Page 1: ...881 882 Video Test Instrument User Guide 882E for HDMI ...
Page 12: ...10 Contents ...
Page 50: ...38 Chapter 1 Getting Started ...
Page 84: ...72 Chapter 2 Testing Video Displays ...
Page 99: ...882 Video Test Instrument User Guide Rev A 35 87 ...
Page 102: ...90 Chapter 3 Administrative Tasks ...
Page 107: ...882 Video Test Instrument User Guide Rev A 35 95 ...
Page 216: ...204 Chapter 5 Working with Formats ...
Page 248: ...236 Chapter 7 Working with Images ...
Page 264: ...252 Chapter 8 Working with Test Sequences ...
Page 382: ...40 Chapter 11 Testing EDID for HDMI 2 Expand the EDID Block in the navigation view ...
Page 446: ...104 Chapter 12 CEC Interactive Troubleshooting Environment ITE ...
Page 493: ...882 Video Test Instrument User Guide Rev A 35 151 ...
Page 591: ...882 Video Test Instrument User Guide Rev A 35 213 Commands by name ...
Page 687: ...882 Video Test Instrument User Guide Rev A 35 309 Example DVIC 23 FMTU ...
Page 1018: ...580 Appendix B Image Reference The EMITest5 image is shown below ...
Page 1094: ...656 Appendix B Image Reference ...
Page 1124: ...686 Appendix C Error Messages ...
Page 1140: ...702 Appendix D Format Reference ...