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D-0126050 rev 1 - 270+ Operating Manual
Afterwards, select AUTO to start the automatic test sequence and the device will apply masking when needed.
On screen, the wording eMASK will be shown to indicate that auto-masking is taking place.
4.8.7. FREEFIELD PRESENTING (TONE TESTING)
It is possible to present the air conduction test signals (sinusoid, warble, pulsed test signal) via a loudspeaker.
Select the OUTPUT button to find your FFIELD option and confirm the output by pressing softkey F3.
Please note: When two loudspeakers are connected to the device, use LEFT and RIGHT to select the
required loudspeaker.
Change the test level and frequency as usual. In order to present a test signal to one loudspeaker and a noise
signal to the other, select the MASK button and control the volume with the Channel 2 rotary control.
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