![]() We can see in the image below that we have a latency of ~4ms:įor more information on how to test your hardware and machine, see the links below. The Photo Sensor from Chronos tells us the hardware latency of the monitor. Leone Timing & Results Services is a race computing company that provides timing and computerized results for road races, cross country, and track & field meets. In the data below, we see the refresh rate and latency line up with what we expect.įor example, we see E-Prime's and a third-party monitoring line up under a millisecond: Specializing in timing using high speed photo finish cameras, RFID systems and UWB tracking solutions, we’ll have something to fit any customers needs. The majority of monitors we encounter act more with how a CRT behaves. PrimeTime Timing is a Wisconsin based sports technology company that provides a number of services to sporting events around the country. always recommends running in a valid supported Operating System. NOTE: The above example was staged for demonstration purposes. The timing itself was good but could have increased the duration of E-Objects since Windows had to draw over E-Prime. In general, it is best to start with updating the video card driver if you encounter issues with your monitor.įor example, PST has found with the monitor below that the screen was double refreshing when the "Activate Windows" watermark was on screen (i.e., drawing E-Prime then drawing the watermark over E-Prime). ![]() NOTE: Issues can be due to the hardware, video driver, or the Operating System. The left side of the screen displays lap time. Testing of the refresh rate and latency can help determine if the monitor is caching the screen for example. However you choose to display this dashboard, the information is the same and is described below. Without being able to judge the position of the raster, PST cannot guarantee the synchronization of each display, nor guarantee that the reported refresh rate is accurate.įor this reason, PST recommends the use of a device such as Chronos with a Photo Sensor to verify refresh rate as well as latency. The vertical blank is determined by the position of the raster. In E-Prime, most displays are synchronized with the vertical blank to avoid partial screen displays and to provide accurate timing. Unlike CRT monitors, LCD monitors do not use the raster technology to redraw the screen.
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