Hi. I played a fairly huge sold out debut show for a new act I'm working with last saturday and halfway through the last song, the samples I was triggering in kontakt within mainstage started to act very strangely. They basically started to get glitchy and play out of time, so that a sample from previous bars was still playing a few bars later, out of time. They were also strangely slowing down and speeding up.
Luckliy I've set up my controller keyboard to have a panic/all notes off button so I was able to put a stop to the terrible sound pretty fast, but after a few attempts at continuing I eventually had to stop and let the band finish without me.
Its an act that I'm the producer for, and as such, a huge ammount of the music was coming from my laptop. The track in which this happened was one with loud drums, bass etc. so it could have been a lot worse. For example, some of the earlier tracks in the set that are slow, electronic, production heavy ballads, where the singer would have been left pretty much on her own. No one likes an angry singer.
We're debuting this act in another city this weekend and I have to figure out how I can guarantee this will not happen again. However I'm finding it difficult to replicate the problem, which makes it very difficult to diagnose or fix.
The only other time it has happened was an hour or so before the gig, but I had no choice at the time but to hope for the best as I was unable to provide any other solution under the circumstances.
Today I've been trying to replicate the problem by pushing my computer to the limit and replaying the songs in my studio. I've currently got 23 applications running in the background (including things like photoshop and final cut). I thought that if it was a cpu or memory problem then surely this would recreate the issue - on the gig I had nothing else running. So far, mainstage is struggling a bit and some of the samples are cutting out prematurely, but there is not the same slow down, speed up warped sound - which is much worse than samples just cutting out.
My setup is as follows:
MacBook Pro 2.6 GHz Intel Core i7 with 8GB 1600 MHz DDR3 (purchased late 2012)
OSX 10.8.5 (I've created an extra startup partition to test Mavericks with my live setup but don't feel ready yet to use it live)
Not many plugins - mostly logic.
...Triggered by an Akai MPK61 midi keyboard/pads
.....Going out through a Native Instruments Audio4 DJ interface.
Within mainstage I have only 5 songs, most of which have 2 instances of Kontakt - 1 running "Piano in Blue" and one with multiple production samples stacked (on separate kontakt "instruments") which are triggered sometimes quite a few at the same time. I would have thought this wasn't a problem as 1 x kontakt playing 10 or so audio samples at the same time is no where near as complicated as a seriously multisampled instrument like "Piano In Blue". Theres also one track using Arturia Prophet V2 and also 2 instances of the TAL U-NO synth on a song that we didn't play.
Also, I've used mainstage with a number of other bands over the last few years with HEAPS more stuff going on and haven't encounted this problem.... This is probably only my 2nd or 3rd gig with version 3 however....
So I'm looking for suggestions of things I can do before this weekend to make sure mainstage doesn't make me look like a ******** again in front of thousands of people (thanks mainstage).
A few ideas I have are:
Try to replicate the issue by loading my cpu to the max (doing this currently)
Clean install operating system
Delete pref database files (?)
Put samples on dedicated partition (?)
Turn off airport (I seem to recall this may cause issues with MS)
Use a simpler, logic piano sound
Simplify samples so theres only one or two playing at any one time...
If anyone can help me out with suggestions/solutions I'd be very grateful!!