Specifications

EAW Smaart 6 Operation Manual Smaart 6 Commands
100
Delay
Delay Time (ms): Type in a delay time (maximum = 750 ms).
Assign To: Choose one of the A-E buttons to assign the Delay Time to that function
key. The time appears in the key’s field in the Presets section below. Alternately, enter
the desired delay time directly in the function key’s field.
Channel: Select either the Ref
-
>Meas (delay assigned to Ref channel) or Meas
-
>Ref
(delay assigned to Meas channel) radio button.
Delay Spinner Increment (ms): Sets the increment to increase/decrease the delay time
from the up/down arrows to the right of the delay time field. The range is 0.02-100 ms.
Presets
Delay times can be assigned to the A- E keys. Enter values directly into these fields or
type into the Delay Time field and click one of the Assign To buttons.
Auto Large and Auto Small
Averages: Type the desired number of impulse response measurements to average to-
gether for the Delay Locator measurement.
FFT: Select the desired FFT size, from 128 to 512k samples. This sets the number of
samples to be collected from the sound card for each FFT used in the associated delay
locator measurement. Changing this selection recalculates the Time Constant shown
below the FFT field. The Time Constant should be significantly longer than the longest
delay time you expect to measure. If unsure what to expect, guess longer—aside from
the increased measurement time, there is no downside to setting the time constant too
large. Longer FFTs should also yield better S/N.
Speed of Sound
Since temperature is the factor that most affects the speed of sound, Smaart 6 adjusts its
internal Speed of Sound parameter used to calculate distance equivalents for delay
times, according to the current temperature (Fahrenheit or Celsius). The speed of sound
can be displayed in ft/s or m/s.
The temperature and speed fields are linked together so changing one changes the other.
However, typical use of this feature involves entering the temperature to recalculate
speed of sound. The default value is 1127.4 ft/s (343.6 m/s), which is the speed of sound
at 68°F or 20°C.