Quantum Data 980 User Manual

Also see for 980: Product guide User guide User guide Application guide

Contents

Quantum Data 980 User Manual Manual pdf 182 page image

980 User Guide Rev. B29Page 182 August 5, 20117.4 AVmute TestThe AVmute Test enables you to verify that an HDMI source is supporting AVmute properly. The AVmute test,verifies that AVmute had been set for the conditions shown below: Vsync has been changed compared to previous frame. HActive is inconsistent in the current frame. Invalid Frame Time Duration based on VSYNC time-stamp. Frame time duration change more than 0.02% compare to the previous frame. Pixel rate change during the video frame for more that 0.02%. VIC in AVI infoframe is changed compare to the previous frame. AVI info frame is not present in current frame. VTotal is changed compare to the previous frame. VSYNC duration is changed compare to the previous frame. HSYNC duration is inconsistent in current frame.To run the AVmute test:1. Select the 980 that you are using to capture the data from your HDMI source device under test.2. Set the Capture Buffer Size slidebar to a percent value to meet your requirements. You can capture up toabout 2GB of data which is about 1150 frames at 576p/480p and about 204 frames at 1080p which includesthe video. Since you do not need to capture the video data for the audio analysis test, you can set this to alower value such as 5%.3. Set the Trigger Position slidebar to a percent value to meet your requirements. This slide bar enables you toset the position of the trigger event within the captured data. This is a slidebar that provides an indication (onthe right) of the location within the captured data, expressed as a percent with 0% indicating that the triggerevent occurs at the beginning of the captured data and 100% indicating that the trigger event occurs at the endof the captured data.For the AVmute test it is best to set the Trigger Position slidebar somewhere in the middle as shown below.