Specifications
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6.8 Find Me (Trilateration)
Trilateration provides users with the ability to “map” a venue in 3D utilizing only two
Anya arrays, a computer running both Resolution and Smaart, and a measurement
microphone. To utilize this feature, the following is needed:
Two Anya arrays (i.e. stage-left and stage-right). At least one array must have two or
more modules. The relative locations of the arrays (height and width) relative to one
another must be known.
A computer running both Resolution 2 and Smaart 7.2 or later (within one operating
system; this cannot be split across multiple OSs via virtualization).
An audio interface and measurement microphone. At least one transfer function
must be configured in Smaart (a two-channel measurement).
A stimulus (noise) source, either in Smaart or external, fed to both the Anya system
and the reference channel in Smaart.
A reasonable working knowledge of Smaart 7 and measurement best practices.
Initial Setup
To configure Smaart to work with Resolution, several configuration steps are necessary:
Under the “Options” menu, select “General…”. Ensure that under “API”, “Enabled”
is checked, and that the Port is set to 26000.
Under the “Delay” tab (also under the “Options” dialog), select an FFT size that
results in a time constant that is significantly longer than the longest time-of-flight
from the array to the microphone. For more help in selecting an appropriate FFT
size, consult the Smaart 7 Help File.
For most applications, a 32k FFT with 3 averages will be sufficient with 44.1 kHz or 48
kHz sampling rates. This corresponds to a flight-time of approximately 700-800 feet.
Go online and assign all Anya arrays.
Step 1
Open the Find Me dialog, which can be found in the Tools menu. The following dialog
box will be displayed: