Zoom A2 User Manual

Using the Feedback Control
ZOOM A2
19
Automatic detection of
feedback frequency
The A2 can automatically detect the frequency
range where acoustic feedback is occurring. If
acoustic feedback should suddenly occur during a
performance, you can simply hit the foot switch to
turn the function on and suppress the feedback
sound. This is possible both in play mode and
manual mode.
1. Refer to the section "Manual
operation of feedback control" and
set the FEEDBACK FREQ value to
"oF" or "At".
When you select the "oF" setting for the
FEEDBACK FREQ value, the feedback control
function is off, but it can be turned on by pressing
the [Q
] foot switch (in manual mode only) or an
external foot switch. The setting will change to
"At" and feedback frequency detection starts
automatically.
When you select the "At" setting for the
FEEDBACK FREQ value, the feedback control
function is on. In this condition, pressing the foot
switch twice initiates automatic detection of
feedback frequency.
HINT
In manual mode, you can change the FEEDBACK
FREQ value by turning parameter knob 1.
2.
To automatically detect the feedback
frequency while playing your guitar,
proceed as follows.
■
In play mode
Use an external foot switch (FS01)
connected to the [CONTROL IN] jack. Press
the foot switch to turn feedback control on.
NOTE
If no external foot switch is connected, feedback
control cannot be switched on and off in play mode.
■
In manual mode
Press the [Q ] foot switch to turn feedback
control on.
In either case, automatic feedback frequency
detection starts when the function is turned on.
The indication "SC" appears on the display.
To repeat the automatic detection process, press
the [Q
] foot switch (in manual mode) or the
external foot switch twice to turn the feedback
control function first off and then on again.
Automatic detection will then be performed once
more.
HINT
You can use the optional expression pedal (FP01/
FP02) to adjust the feedback control frequency with
your foot (setting range 1 – 30). For information about
making foot switch or pedal settings, see pages 21 –
23.
O F
SC
eA2.fm 19 ページ ２００５年１０月１４日 金曜日 午後５時２９分

Zoom A2 Specifications

General

Looper	no
Outputs	1/4" phone jack
MIDI I/O	no
USB	no
Signal Processing	32bit
Input	1/4" phone jack
Output	1/4" phone jack
Effects	Reverb, Delay, Chorus, Flanger, Phaser, Tremolo, Vibrato, Auto Wah, Compressor, EQ
Inputs	1/4" phone jack
Power Supply	9V DC (Power supply included)