Specifications

EAW Smaart 6 Operation Manual Applications
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The following steps assume knowledge acquired during the previous example:
1. Set the mixer controls so that input signal A (in Figure 4-10) is routed to
Smaart’s reference signal input on your computer and C is sent to Smaart’s
measurement channel. The output of the equalizer (input signal B) is not used
for the first measurement and should be muted or turned all the way down.
The output of the equalizer (mixer input B) must not be sent to either of
the computer’s sound card inputs.
2. Use the automatic Delay Locator to find the delay time between the loudspeaker
and microphone then, set the internal delay to align the two input signals.
3. Store the measured Delay Time value to a Delay Preset key (A- E).
4. Make a frequency response measurement of the loudspeaker. Refer to Fre-
quency Response Measurement of the Loudspeaker on page 80, if necessary.
5. Click the Start button in Smaart and confirm that the real time Magnitude display
trace is trending at or near the 0 dB line. Adjust input levels and/or the Y+/–
setting to correct if necessary.
6. Capture a Reference Trace from the live Frequency Response trace.
7. Change signal routing so Smaart’s reference and measurements inputs are your
signal source and the output of the equalizer, respectively (mixer inputs signals
A and B in Figure 4-10). The signal from the microphone should now be muted.
8. Reset the reference signal delay:
• If using an analog EQ, press the F5 key to reset the internal delay to 0 ms.
An analog EQ has no significant throughput delay so compensation is not
required.
• If using a digital EQ (and/or digital mixer), run the Delay Locator to find
and compensate for the delay through the device(s).
9. With all filters on the EQ set to 0 dB cut/boost, run Smaart and adjust signal
levels and/or the Y+/- setting to position the live Magnitude trace near 0 dB.
10. Open the Legend dialog for the Magnitude display and invert the Reference
Trace of the system response you made in Step 6. Since you will basically want
to cut where the system has high spots in its response curve and sometimes
boost where there are dips, inverting the system response relative to the EQ
response (or vice versa) makes it easier to match the appropriate EQ filters to
the loudspeaker response curve.