Fishman Aura manual Play Mode, How to use the Phase switches, Edit/Play Switch, Programs

Acoustic Imaging Blender Aura™ Inner Workings - continued

Why a Phase Switch on the Parameter Knob?

A Sound Image is created from an actual microphone in front of a guitar. So the distance of the mic from the instrument and the polarity of the mic capsule will contribute to relative phase of the signal. Because the Aura blends a Sound Image signal with a pickup signal there is a 50% chance that the two will clash. The clash will manifest itsef as a loss of bass response, shrill treble, and a generally anemic tone. The phase switch located on the parameter knob simply lets you put the pickup and Sound Image into agreement. The method for setting the switch is simple: set the Parameter knob to “Phase”, toggle the Data knob and listen. The “correct” position for the switch is the one that produces the strongest sound.

How to use the Phase switches:

1Start with the Edit/Play switch in the Play position and select a program. Make note of the number of the program and move the switch to the Edit position.

2Turn the Parameter knob to Blend and turn the Data knob clockwise until the letter A (Aura effect only, no pickup) appears in the display.

3Raise the Output Level.

4Play your instrument and flip the Phase slide switch back and forth. The desirable position for the switch is the one where the instrument and speaker work in agreement together and feedback is minimized. Note: If you change your position, you may also need to change the position of the Phase switch to maintain the positive relationship between the instrument and the speaker.

5Turn the Parameter knob back to Blend and adjust the Data knob counter-clockwise until the number 4 (50% Aura effect, 50% pickup) appears in the display.

6Turn the Parameter control to the Phase position (Pickup phase).

7Play your instrument, turn the Data knob clockwise (1 on the LED Display), then counter-clockwise (0 on the LED Display). Listen to the differences in sound quality and choose the position that sounds the most natural with the strongest bass.

8Move the Edit/Play switch to the Play position to commit the pickup phase switch setting to the program.

Play Mode

Edit/Play Switch

Move the switch to Play and the numbers in the LED display will refer to the 50 program locations available in the Aura's memory.

Programs

There are 50 available program locations in Play. To move through them, use the Program Change footswitches or the Data knob. Any one of the program locations can be assigned to any of the parameters in Edit. For demonstration purposes, we factory load the first 16 program slots (01-16) in Play mode with the corresponding sequence of Aura/Pickup mixes from Edit- Parameter, Select (P1-P4, 01-12). You can alter or edit any of these mixes at any time. Program locations 17-50 come from the factory configured with the Select parameter set to “oF” which means that only the unprocessed pickup signal appears in the “Aura” side of the blender.

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