Latency - Touch Down

Test name

Test.AudioTouch.json

Core requirements tested

Device.Input.PrecisionTouchpad.Performance.ActiveTouchdownLatency

Test purpose

Verifies that the device is able to report first contact down within the required latency window.

Tools required

  • Ptstepmotor.exe

  • RA Tool with Precision Touchpad modifications

Validation steps

See detailed test instructions at How to measure Touch Down Latency by using an Acoustic Measurement Tool.

Note  

Use Ptaudiotouch.exe instead of the touch executable.

Only 50 taps during the collection phase are required for this class of device.

 

Common errors

None

Passing

This test has no permitted tolerance, therefore a recorded average touch-down latency <= 25.0ms will result in a pass.

Related topics

Precision Touchpad Tests

 

 

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