GSI Audera Pro User Manual
D-0129360 Rev A Page 68 of 231
The File stimulus type presents a dialog where you may select a stimulus file (*.STM).
The stimulus may be a file previously saved using this Stimulus dialog or may have been
provided with the installation.
The Tone Burst option also allows the specification of the envelope of the tone burst.
Envelopes shape the rise and fall of the stimulus. If you need to specify a Tone Burst
stimulus that includes the rise, plateau and fall parameters you need to select either the
Trapezoidal or Extended Cosine envelope. The total duration is specified in the
Duration field and the rise/fall specified in the Envelope Rise/Fall field. The plateau
would be the difference between the total duration and the rise plus fall. For example,
if you wish to specify a 2-1-2 (rise-plateau-fall) cycle tone burst, you would select the
cycle option in Duration and enter 5 (2+1+2) in the field. You would then choose the
appropriate envelope and enter 2 in the Rise/Fall field.
The Rectangle, Cosign Sqr. (Hann), Blackman, Gaussian envelopes do not have a user
specified field for the rise/fall parameter. These envelopes have a 0 plateau and the rise
and fall are each equal to half of the specified duration. The Gaussian envelope is
specified in cycles for duration and should be in increments of 0.5 to ensure a smooth
transition.
The Stimulator section allows you to choose the transducer that will be used for the
stimulation.
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