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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

See the device hardware requirements.

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

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