Boss Audio Systems RC50 manual Guide OFF, Loop Sync on, Phrase Two measures

Here’s an important thing to keep in mind: Turning on a phrase’s Tempo Sync switch will make it play at the current patch tempo. If you don’t want its playback speed changed from the way it was originally recorded—which you’ll probably find preferable in most circumstances—set the patch tempo to the same value as the phrase’s original tempo.

If you turn on Tempo Sync before recording the reference phrase, the patch tempo is automatically set to match the phrase’s original tempo immediately after audio is recorded in it. This eliminates the need to change the patch’s tempo manually as discussed in the tip above, and makes the recording process seamless. We recommend this way of working when using a phrase as a Loop Quantize reference. For details, see the RC-50 Workshop booklet Tempos and Tempo Sync.

Phrase 1 (Tempo Sync on)

Rec start

Phrase 2

Two measures

CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C

	When REC/PLAY/OVERDUB
	is pressed, Phrase 2’s ending is
	adjusted to Phrase 1’s nearest
	Loop Quantize point
Three measures

CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C CC CC C C C C

Press REC/PLAY/OVERDUB within this range

Here’s a practical example for using Loop Quantize in this way: Say you’ve recorded a two-measure rhythmic phrase—or imported a two-measure drum loop—into Phrase 1, and Phrases 2 and 3 are empty. While Phrase 1 is looping, you’d like to record a three-measure chord progression into Phrase

2.Here’s how to use Phrase 1 as a Loop Quantize reference, so that Phrase 2’s measure length will match that of Phrase 1:

� With playback stopped, set Phrase 1 for looped playback and turn its Tempo Sync switch on.

� Start playback of Phrase 1. This makes Phrase 1 the reference phrase for Loop Quantize.

� While Phrase 1 is looping, select Phrase 2 by pressing its PHRASE SELECT pedal. When you do this, LOOP QUANTIZE lights.

� To start recording, press the REC/PLAY/OVERDUB pedal. This action also sets the Loop Quantize adjustment point. (In the illustration below, we’ve started recording on the downbeat of Phrase 1’s first measure, making it the adjustment point.)

5� Record for three measures and close Phrase 2 by pressing REC/ PLAY/OVERDUB again. When the phrase is closed, Loop Quantize automatically adjusts the phrase ending to the nearest Loop Quantize adjustment point.

Using Loop Quantize in this way, it’s easy to match the measure length of a long phrase to a short phrase, or vice versa.

Guide: OFF, Loop Sync: ON

Multi mode’s Loop Sync feature provides an alternate method to keep phrases in sync with each other.

To turn Loop Sync on, choose MULTI for the Play mode, and then press LOOP SYNC so its indicator lights.

Loop Sync is only available in Multi mode; its button is disabled when the RC-50’s in Single mode.

The following illustration shows you how Loop Sync works after audio’s been recorded in a patch’s phrases. In this example, all three phrases contain audio of different lengths. With Loop Sync on, looped playback is determined by the overall length of the longest phrase (Phrase 2 in this case). The playback starting points of Phrases 1 and 3 are determined by when they were recorded in relation to Phrase 2’s length. (When necessary, the RC-50 locks a newly recorded phrase’s start time to the start of the longest phrase by automatically adding silence—that is, blank audio—to the beginning of the new phrase when it’s closed.)

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