Windows Touch Response Latency (Down) Test
This test verifies that a Windows Touch device meets the response latency requirements for both idle and active states.
Test details
Associated requirements |
Device.Digitizer.Touch.ResponseLatency |
Platforms |
Windows RT (ARM-based) Windows 8 (x64) Windows 8 (x86) Windows RT 8.1 Windows 8.1 x64 Windows 8.1 x86 |
Expected run time |
~30 minutes |
Categories |
Certification Functional |
Type |
Manual |
Running the test
Before you run the test, complete the test setup as described in the test requirements: Windows Touch Testing Prerequisites.
Similar to response rate, low response latency plays a large role in ensuring fast and fluid motion. Conversely, a high degree of response latency breaks the illusion that the user is manipulating a physical object.
This test uses specialized hardware to measure the latency in touch packet delivery under two conditions: touch-down (stationary) and panning (continuous reporting, in motion).
To learn about the hardware and about associated procedures, see How to Measure Touch Panning Latency and How to Measure Touch Down Latency.
Troubleshooting
For troubleshooting information, see Troubleshooting Device.Digitizer Testing.
More information
Command syntax
Command option | Description |
---|---|
audiotouch.exe |
Runs the test. |
File list
File | Location |
---|---|
audiotouch.exe |
<testbinroot>\digitizer\Win8Touch |