Boss RC-20 Owner's Manual page 11

1. Turn the PHRASE SELECT knob to select an empty phrase track 1–10
(PHRASE USED indicator extinguished).
If there is no empty phrase track, or if the MEMORY FULL indicator is lit, no
further phrases can be recorded. You will need to erase unnecessary phrases (p. 23).
2. Press the MODE button to get the INST & MIC indicator to light.
3. While you produce sound on your microphone or instrument, turn the MIC
knob or INST knob to adjust the recording level.
Adjust the volume so that the PEAK indicator lights occasionally.
4. Set the tempo by pressing the TAP TEMPO button or the right pedal several
times in time with the tempo of the phrase you wish to record.
* For details on setting the tempo, refer to "Setting the tempo" (p. 24).
* If you are recording a phrase of a time signature other than 4/4, you must also set the
time signature (p. 25).
5. If you want recording to begin the moment you start playing, turn the AUTO
START button on (indicator lit).
6. Press the left pedal to begin recording.
If Auto Start is on, recording will begin the moment you start playing.
If you have specified the tempo, recording will begin one measure after you press the left pedal.
If you have not specified the tempo, recording will begin the moment you press the left pedal.
* If the internal memory is used up, recording or overdubbing may stop before you are
finished. If this occurs, erase unnecessary phrases (p. 23), and try the operation again.
7. Press the left pedal to stop recording.
Simultaneously, the recorded phrase will begin playing.
* Regardless of the timing at which you press the left pedal, the length of the phrase will be
automatically adjusted in units of a measure, so that the loop phrase can be created
correctly (Loop Quantize p. 25). This means that a certain amount of time may be
required from when you press the left pedal until recording stops.
* If you recorded an extremely short phrase, the length of the phrase will be adjusted
automatically, and then recording will stop (p. 27).
8. If you wish to overdub onto the phrase, press the left pedal.
Each time you press the left pedal, the playback and overdubbing modes will alternate.
9. When you are finished with playback or overdubbing, press the right pedal.
10.Press the WRITE button, getting the indicator to start blinking. To save the
data in the same phrase track, press the WRITE button once again.
If you wish to save the data to a different phrase track, press the WRITE button (so
its indicator is blinking), use the PHRASE SELECT knob to select the desired save
destination, then press the WRITE button once again.
* For details on saving, refer to "Saving a phrase" (p. 23).
Recording a guitar or vocal performance to create a phrase loop
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