Filter
Top Products
Using the Feedback Control
ZOOM A2.1u
22
Using the built-in expression
pedal to operate the
feedback control function
The built-in expression pedal of the A2.1u can be
used to switch the feedback control function on
and off, and to adjust the feedback frequency.
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".
2.
Repeatedly press the [PEDAL
ASSIGN] key until "FEEDBACK FREQ"
is shown as control target for the
built-in expression pedal.
In this condition, the built-in expression pedal can
be used to switch the feedback control function on
and off, and to adjust the feedback frequency.
3.
Store the patch if necessary.
The expression pedal setting can be stored for
each patch individually.
4.
If acoustic feedback occurs while you
are playing your instrument, push the
built-in expression pedal fully down.
When the built-in expression pedal is pushed fully
down while the FEEDBACK FREQ parameter
setting is "oF", the feedback control function will
be turned on. The feedback frequency setting in
this condition is "30".
5.
Operate the built-in expression pedal
until you have found the position
where feedback is suppressed most
effectively.
NOTE
• The built-in expression pedal cannot be used to
perform automatic detection of feedback
frequency.
• The above operation is possible only with the built-
in expression pedal. The external expression pedal
(FP01/FP02) can only be used as a volume pedal
(
→
p. 25).
O F
3 0
Push fully down
eA21u.fm 22 ページ ２００５年１１月４日 金曜日 午後５時２３分