Anti Feedback Function - Roland Acoustic Chorus AC-33 Mode D'emploi

Erasing the phrase
1. Hold down the [STOP/CLEAR] button for two or more
seconds.
The REC indicator will blink, and the phrase will be
erased.
NOTE
The erased phrase cannot be recovered.
Copyright
* Recording, duplication, distribution, sale, lease, performance, or broadcast
of copyrighted material (musical works, visual works, broadcasts, live
performances, etc.) belonging to a third party in part or in whole without the
permission of the copyright owner is forbidden by law.
* Do not use this unit for purposes that could infringe on a copyright held by
a third party. We assume no responsibility whatsoever with regard to any
infringements of third-party copyrights arising through your use of this unit.

Anti Feedback Function

Anti Feedback function
What is acoustic feedback?
This is an unpleasant oscillation (a whine, buzz, or howl) that occurs
when the output from a speaker is re-input to a microphone or pickup,
amplified, and output again from the speaker.
This is more likely to occur when you point the microphone at a
speaker or raise the volume to a high level.
Sound continues
cycling, causing
feedback
Using the Anti Feedback function
What is the anti-feedback function?
This function suppresses the acoustic feedback that can occur
between a guitar or microphone and the amp. It does this by attenuat-
ing the sound in the frequency range at which feedback is occurring.
Feedback will be suppressed automatically when you use the
anti-feedback function.
Using a foot switch
By using momentary-type foot switches (BOSS FS-5U or FS-6; sold
separately) you can operate the Looper's [REC/PLAY/OVERDUB] button
and [STOP/CLEAR] button with your foot.
PCS-31
Red
White
(RING) (TIP)
STOP/CLEAR REC/PLAY/OVER-
button DUB button
BOSS FS-5U
• If you've used a cable with a phone plug (mono) to connect only one
foot switch, the foot switch will operate only the [REC/PLAY/OVERDUB]
button.
For details on foot switch polarity settings, refer to p. 9.
1. Turn the [ANTI-FEEDBACK] switch ON.
The anti-feedback function will be applied to the
microphone or guitar connected to the GUITAR
CHANNEL and MIC/LINE CHANNEL inputs.
MEMO
In order to prevent feedback from occurring during your performance,
we recommend that you turn the anti-feedback function on before
you begin performing.
NOTE
The anti-feedback function will be reset when you turn the power off,
then on again.
* If the anti-feedback function is not enough to suppress feedback,
take the following steps
• Change the direction of the guitar or microphone
• Move the guitar or microphone away from the speakers
• Lower the volume
PCS-33
STOP/CLEAR REC/PLAY/OVER-
button DUB button
BOSS FS-6
11