Logic Pro X - Sudden Latency Issues

It is a tool to use almost exclusively when you are recording and/or performing live. Turn is off when you mix. You can customize you control bar to include a low latency mode toggle button. (see the pic below). I find this very helpful.

In many cases, my first suggesting (From the Menu: Logic Pro X > Preferences > Audio Make sure the I/O Buffer Size is 128 or lower) will solve noticeable latency issues. When I mix I change my buffer size to the highest setting (1024) as well.

Hope this helps.

It is not wise to leave the Low latency Mode checked all the time, it's only used under specific conditions. The fact that the OP didn't have a problem then suddenly had one points to something new installed. (Like the Focusrite Scarlett low latency modification file on their website, which has caused problems.) Or an OS or Logic upgrade.

See my post here....

When do I need to check the Low Latency box?

Hi Matt,

So, everything has been the same for six months, same exact Mac operating system, you must have automatic updates off in system preferences.

You deleted Logic's preferences and the control surface preferences? You've used the same Logic version for the past six months. Remember... it doesn't have to be Logic that's causing this, the most common culprit is the operating system being upgraded.

I recently got a Focusrite 2i4 (2nd gen) Have you installed the low latency program on this page. (Not sure that's a good idea)

https://us.focusrite.com/downloads?product=Scarlett+Solo

If you have installed it... try removing it.

Here's the main reason for not leaving Low Latency Mode "on"

Note: The sound may change in Low Latency mode. Depending on the plug-ins in use, the changes can be anything from subtle to dramatic. If plug-ins being used do not exceed the total latency limit, there will be no audible difference.

That is absolutely correct! Low Latency Mode can affect plug-ins as well as Aux sends. It is a tool to use almost exclusively when you are recording and/or performing live. In many cases, my first suggesting (From the Menu: Logic Pro X > Preferences > Audio Make sure the I/O Buffer Size is 128 or lower) will solve noticeable latency issues.

What's different... are you saying over the last 6-months you've used the -exact same setup- OSX version, no OSX updates, no Logic updates.

What has changed between then and now?

Couple things to check:

From the Menu: Logic Pro X > Preferences > Audio Make sure the I/O Buffer Size is 128 or lower.

From the Menu: Recording > Make sure "Low Latency Mode" is Checked

BigDane hi

Do I have to check the "LOW LATENCY BUTTON" each time I record? then turn it off for mixing?

Or just leave it on all the time?

Why isn't it checked on as default?

Please let me know!