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Old 10th June 2012   #1
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Buffer Size!!

Got a question for the pros!

Trying to figure out if its safe to use a 32 buffer setting with my setup

I have a 2011 27" iMac 3.4GHz i7 8-core with 12GB ram
and using apogee duet 2 as my audio device with Logic Pro
The manual says I should put the buffer size to 128 but was wondering if they were saying that for people with older computers and if i would be safe at 64 or maybe even 32.
Any advice or info would be awesome!! thanks
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Old 10th June 2012   #2
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Safe? Yes!

As stable? Maybe not . .

No-one can answer this question absolutely because every system and user is unique . . just try it and see, nothing's gonna explode! :]
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Old 10th June 2012   #3
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It should work, depends on how many plugins your running. I use 32 buffer for everything until I overload it and slowly increase it until my midi delay is to noticeable to play comfortably, then I start freezing tracks (ableton).
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Old 10th June 2012   #4
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so if a 32 buffer is wrong for my system will I be able to tell?
if that is to small what will happen so i can recognize it?
I know click and pops but is there anything else?
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Old 10th June 2012   #5
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so if a 32 buffer is wrong for my system will I be able to tell?
if that is to small what will happen so i can recognize it?
I know click and pops but is there anything else?
Logic will tell.. remember there are 2 buffers. "buffer process range" settings determines how fast logic operates internally, "and buffer size"(the one you ask about) determines your input latency.
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Old 10th June 2012   #6
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The buffer size setting, is a "tuning", of resource between low latency throughput, and power draw, or power usage within your specific environment. It is dynamic, meaning it is relative to the workload and task procedure you are undergoing.

So, it is typical, to raise buffer sizes at the expense of low latency throughput, to draw from added resource, for other tasks and processes.

And reversely, lower it, to achieve lower latency times through a given system, trading off processing power.

However, as our overall resources are elevated to promising potential, compromising and "tuning"/trading off", become problems of the past.
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Old 10th June 2012   #7
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I seriously doubt you could tell there's any latency @128 AI buffer setting... unless you have plug-in's running while tracking ; most DAWs have ADC (Automatic Delay Compensation) which essentially delays everything to the greatest CPU/delay inducing Plugin hog.

Best practice is to do all tracking first (no plug-ins) with a lowish buffer.
Then once everything is recorded, raise your buffer so you have more CPU headroom, as latency shouldn't really matter at this point.
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Old 11th June 2012   #8
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I have 2.93 i7 with 12gb ram tracking to ext HD at buffer size 32.
If it hangs up you'll know.
Not like it's gonna damage anything.
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Old 11th June 2012   #9
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Quote:
Originally Posted by badnews View Post
Got a question for the pros!

Trying to figure out if its safe to use a 32 buffer setting with my setup

I have a 2011 27" iMac 3.4GHz i7 8-core with 12GB ram
and using apogee duet 2 as my audio device with Logic Pro
The manual says I should put the buffer size to 128 but was wondering if they were saying that for people with older computers and if i would be safe at 64 or maybe even 32.
Any advice or info would be awesome!! thanks
There is no alterntive to simply trying it. Change the setting and try it for some time, don't do any critical recording and just see if it works. If it does for some time and you see an improvement, keep it.

The reasin I answer like this is that every computer system is different. Different drivers, different software, different OS versions, different updates, etc. - all this can have an effect.
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