Boss Audio Systems RC50 manual End, Loop Quantize with External Sync

			Loop Sync playback
Phrase 1	Silence	CC CC C C CC C	CC CC C C CC C
Phrase 2	CC CC C C CC C	CC CC C C CC C	CC CC C C CC C CC CC C C CC C	CC CC C C CC C	CC CC C C CC C
Phrase 3	Silence		CC CC C C CC C CC CC C C CC C	CC CC C C CC C

Loop Sync only works with phrases that are set for looped playback.

If you’re using Loop Sync to create a multi-phrase loop performance from a blank slate—that is, you start with three empty phrases—the first phrase you record will determine the loop playback length. However, if you’ve recorded or imported audio into a patch’s phrases before turning on Loop Sync, the loop playback length will be determined by the overall length of the longest recorded/imported phrase.

After the longest phrase has been defined, Loop Quantize behaves a little differently than discussed previously. With Loop Sync off, we used Loop Quantize to create phrases that match the measure length of a reference phrase. When Loop Sync is on, however, the longest phrase’s overall length becomes the reference for Loop Quantize.

When Loop Sync is on—and the guide is off—Loop Quantize is enabled during phrase recording when:

•another phrase contains audio (it doesn’t have to be playing).

•that phrase is set for looped playback (its One Shot parameter is set to LOOP).

When these conditions are met, Loop Quantize ensures that new phrase recordings don’t exceed the length of the longest phrase.

In practice, once you’ve determined the overall loop playback length by recording or importing a phrase, you don’t need to think about Loop Quantize when using Loop Sync. It does all the phrase adjusting under the hood, automatically closing a newly recorded phrase—and switching to overdubbing—when its length matches the longest phrase.

Loop Quantize with External Sync

When the RC-50’s set to receive a MIDI clock signal at its MIDI IN jack, its phrases and guide can be synchronized to MIDI clock messages sent from an external MIDI device, such as a drum machine, MIDI sequencer, or even another RC-50.

When synced externally, the RC-50’s patch tempo follows the incoming MIDI clock tempo, and phrase actions (recording and playback) can be controlled via incoming MIDI start and stop messages.

When the RC-50 is receiving MIDI clock messages, Loop Quantize is always enabled. The patch tempo—determined by the MIDI clock signal—provides the measure length reference for Loop Quantize.

In actual use, you’ll find that using Loop Quantize with external sync behaves essentially the same as using Loop Quantize with the guide. The only difference is that the starting of recording/playback is initiated from the external device instead of the RC-50 itself.

To learn about syncing the RC-50 to an external MIDI device, see Chapter 8 in the RC-50 Owner’s Manual.

The End

We hope you’ve found this workshop helpful. Keep an eye out for other RC-50 Workshop booklets, available for downloading at www.BOSSUS.com and www.RolandUS.com.

For the latest RC-50 updates and support tools, visit the BOSS U.S. Web site at www.BOSSUS.com. If you need personal assistance, call our amazing Product Support team at 323-890-3743.

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