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.
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