Section 1
Getting Started
DriveRack Studio
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� These types pertain to the Q, sensitivity, and algorithm type. The filter is established by using the formula: Q= Freq divided by Bandwidth. This means that a higher Q will produce a filter that is more narrow. Values are: Speech (Bandwidth = 1/5 octave and Q=7.25) Music Low (Narrow notch filter, Bandwidth = 1/10 octave and Q=14.5), Music Medium (Very Narrow notch filter, Bandwidth = 1/20 octave and Q=29) Music High (Ultra Narrow notch filter, Bandwidth = 1/80 octave and Q=116). To guarantee that feedback is suppressed at lower frequencies, the AFS may place wider notch filters at these lower frequencies (below 700 Hz). Once the desired fixed type has been selected, press the <NEXT PG> button and the display will read:
Slowly Increase the mixer gain to desired level.
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� You are now prompted to raise the output gain of the mixer to the level of the performance. Note that you are raising the mixer gain without an input signal running through the mixer. Once the desired level has been set and all of the fixed filters have been assigned, the unit will automatically move you to the page that indicates the fixed filter setup has been completed. If you have reached the performance level setting and all of the fixed filters have not been used, you may want to return to the page that selects the number of fixed filters and re-adjust the number of fixed in order to provide you with additional live filters. Regardless, once you have completed the setup, the display will read:
AFS Fixed Filter Setup Done
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� To return to program mode, simply press the <PROGRAM> or <NEXT PG> button. For more information regarding feedback elimination, please see the AFS parameters of the Detailed parameters section.
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10
DriveRack Studio User Manual
