Apple Logic Pro /LogicExpress Discussion

Thanks for the suggestions, will see what I can figure out/learn.

BL
From: Logic_Cafe@yahoogroups.com [mailto:Logic_Cafe@yahoogroups.com] On Behalf Of Paul Najar
Sent: Thursday, January 01, 2009 6:43 PM
To: Logic_Cafe@yahoogroups.com
Subject: Re: [Logic_Cafe] Which Souncards/Converters


On 02/01/2009, at 7:00 AM, Lucas, Bryan wrote:

> Maybe this is a dumb question, but I'm fairly new to all of this.
> So I have a PreSonus Firebox audio interface connected to a current
> generation MacBook Pro via Firewire. I get no delay when using a
> real instrument (guitar, vocals) but do get a very slight delay when
> using a keyboard connected through the interface via MIDI.
>
> Is using a laptop (i.e. integrated sound card) a poor way to do
> this? It sure is more convenient to have it all in one laptop
> rather than a tower/monitor.
> Why do I keep hearing and reading about upgrading sound cards to get
> rid of delay? Is the sound card the only bottleneck or at least the
> most likely?
> Is it possible to get delay to a truly imperceptible amount and if
> so, is that only accomplished with a Mac Pro tower w/ some high-end
> sound card or can it be done with a lapto

It's probably because in the firebox mixer application you have audio
inputs set up for zero latency monitoring (audio input gets fed
straight to audio output) but when you're triggering a virtual
instrument via midi you have no choice other than to wait for logic to
output the sound - thus some delay.

Check your audio buffer in Logic. I'll hazard a guess and say that it
is set to something like 256 or higher. Your set up is powerful enough
that you could have this setting on 128 or even 64. This will minimise
delay (latency) when triggering virtual instruments.

In general, your system is extremely useful and quite powerful. The
Firebox is a good value decent performing interface. I suggest you try
all the things I mention above - and fully understand them - before
you consider spending any money on changing anything. About the only
purchase I can think of that may help you is getting 4 GB of ram
(maximum) in your mac book pro if you don't already have that.

Good luck!

:::::::::::::::::::::::::::::::::::::::::::::::::::
Paul Najar
Jaminajar Music Production
www.jaminajar.com

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