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SR18 slave to Roland VS-1880, sync timing issues

On a Roland VS-1880 DAW, I've recorded a sync track from a fully composed rhythm part on an SR18 drum machine, using MidiClock. But when I play back the sequence using the VS-1880 as the master, patterns created with quantize "off" (1/384) aren't played faithfully; the unquantized notes are "re-quantized" to a lower resolution, and hits that are finely timed a hair off the beat get shifted, making them sound mis-timed.

Anyone have experience with this? Is it a limitation of the VS sync track? Or of the Alesis' MidiClock output? Maybe an outboard midi device would fix it? It's hard to believe that the drum machine can't be synced so that playback with the Roland as master is identical to the drum machine playing off it's own clock.

Many thanks for any tips!
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  • Hello,

    Thanks for posting. 

    The good news is that, because your SR18 is acting as a slave device and only sending the MIDI information out, your SR18 is working perfectly fine. That being said, based on the symptoms you're describing, the issue here is with your Roland device, specifically its MIDI settings. I would suggest going through the documentation for your VS-1880 to ensure these settings are configured properly. If you are still having issues, you will need to contact Roland directly.
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