Apple Logic Pro /LogicExpress Discussion

On 29 Mar 2010, at 16:59, GAmoore@... wrote:

> . I have not
> noticed huge latency issues in recording audio in logic directly but
> midi through a USB Keyboard - directly plugged into the Mac Pro has  
> too
> much latency. I usually go in and move everything to the left about 30
> ticks or whatever.
>
Am I just imagining that the speed of the recorded audio seems to vary  
compared to the track the singer is singing along to? When I try to  
record a vocal, the rest of the tracks seem to be playing perfectly in  
time, as they always do. Unless latency somehow varies in amount  
during the course of the recording, all I have to do is to nudge the  
vocal to the correct starting position and it should all fit in  
perfectly, shouldn't it?

And yet, when I play the audio back with just a click track the audio  
seems to be slightly off the beat throughout.


> To get a good feel to record midi, I found its
> better to use a real keyboard which makes sounds immediately, then you
> can hear yourself playing along fine - and then go and adjust all the
> notes to the left the latency factor. However, I was reading somewhere
> that these "highly accurate" midi systems are more marketing than  
> true,
> and actually there is a fair amount of jitter - so I dont know.
>
I have an M Audio keyboard with a USB adapter into my MacPro and I am  
not aware of any latency issues, as such. In fact I don't possess a  
real instrument so most of my input is done with this keyboard. Every  
so often during the course of recording a song I stick a mastering  
channel strip at the end of the Mixer, to get an idea of how the song  
is going. If I forget to take that off again before recording another  
track, then you do definitely find that the resulting recording is all  
over the place. But other than that, you shouldn't really have the  
problem you are describing (well, unless I am totally missing the  
point, which as a novice I might be).

It is very easy to blame the recording when the input is at fault. I'm  
a pretty good keyboard player but, like many of us, counting isn't my  
strongest point and without a click track or rhythm behind me no  
amount of counting aloud is going to stop me wavering off the beat.

But if you have the piano roll showing when you record midi, and chose  
a level of magnification so that the roll moves in a way that you can  
see each new note and the bars, then you will soon see whether or not  
you are playing on the beat, behind it, or in front of it.

PLEASE - if I have got the wrong end of the stick here (since I seem  
to be finding exactly the opposite of someone I look upon as an  
expert) then do correct me. I wouldn't want to mislead anyone.

Andy

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