Thread: MIDI input lag?
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Old 07-14-2011, 12:47 PM   #2
XonXoff
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Join Date: Aug 2006
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It is normal... mostly, but you can do something about it.

The problem is called latency and put simply the delay is caused by the time it takes your computer and soundcard to process the midi hits from the input through Reaper and off to whatever is making the sounds for you.

First up - avoid the MS synth - it's not great for latency.

Secondly, you need to reduce your buffer settings (the amount of "buffer" than the PC uses incase it gets busy when it needs to go and grab more audio data).

You do this by going to the Preferences in Reaper, but if you are using ASIO drivers you will need to alter the buffers in the soundcard's control panel.

Now, it is a tradeoff.... the more you reduce the latency the more likely you are to start getting pops and clicks, especially when your project is heavily loaded.

But it's fine to swap between a lower latency for tracking and a larger latency for mixing.

Last edited by XonXoff; 07-14-2011 at 12:48 PM. Reason: typo
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