by dapa12; Sun Nov 21, 2010 5:11 pm
by dapa12; Mon Nov 22, 2010 4:12 pm
dapa12 wrote:I'm getting unacceptable audio dropouts using Digital Performer 7.21 on a MacBookPro connected via Uniwire to my Receptor 2 Pro Max with Komplete 5 inside. Akoustik Piano is great but not with the audio dropouts. Unfortunately, I read too late on the forum that I should not have upgraded my Mac OS to 10.6.4, but I had already done so. I've already set my DP Preferences to "audio plug-ins in real time", but that did not help. I tried disabling dual core mode and Zload on the Receptor and that also did not help. I'm only running DP by itself on the MacBook Pro and I've got 6 Mb RAM. I'm running a 256 buffer and a 48000 sample rate. Is there anything you can think of that I can do to eliminate the dropouts? Do I have to wait for a Uniwire and/or Receptor OS upgrade?
Thanks, batgab, I've tried that and it doesn't help; I get more latency with audio dropouts. I'm stumped at this point.
by dapa12; Tue Nov 23, 2010 6:59 am
by dapa12; Thu Nov 25, 2010 8:21 pm
by dapa12; Fri Nov 26, 2010 5:57 am
by dapa12; Tue Nov 30, 2010 9:24 pm
Model Identifier: MacBookPro3,1
Processor Name: Intel Core 2 Duo
Processor Speed: 2.4 GHz
Number Of Processors: 1
Total Number Of Cores: 2
L2 Cache: 4 MB
Memory: 6 GB
Bus Speed: 800 MHz
Boot ROM Version: MBP31.0070.B07
SMC Version (system): 1.18f5
by Kevin@MuseResearch; Wed Dec 01, 2010 10:57 am
A good way to test this is to put a couple measures of notes in the sequence on your Uniwire track and loop the 2 measures until you get a note dropout.
If your successful doing this (and don't have any drop outs) try adding a second uniwire track (and follow the same process). My suspicion is that you may see audio drop outs at that point. This is due to some kind of issue with the way DP is handling plugins within the 2 cores.
by dapa12; Sun Dec 05, 2010 2:53 pm
At that point, I began researching articles and forum threads, experimenting until I ended up with DP and Receptor adjustments that allows me to work with three Uniwire tracks (Akoustik Piano, Elektrik Piano and Kontact) plus the Bassline and Kore 2 instruments at once with little or no audio dropouts. I may get one dropout per hour of playing/recording, but that is negligible compared with the previous situation.
These are the procedures that were followed:
Turn Airport off (as you suggested in your earlier post)
Turn Dual Mode off on the Receptor (power the unit off and back on to ensure the Dual Mode stays off)
In Setup.Config Audio System> Config Studio Settings, disable the Prefill buffer and increase the Max Work Percent from 80% to 90% (devoting more processing to the audio engine).
In Preferences>Audio Plug-Ins> set all plugins to Real Time Mode
In Setup>Configure Audio System>Configure Audio Driver> Set Work Priority to Low
I hope this information is valuable to all those who experience DP/Receptor audio dropout issues.
by johnrangel; Sat Jan 01, 2011 8:14 am
DP 7.22, MacBook Pro, OSX 10.6.5, and Komplete 7 installed on Receptor 2.
What seems to work form me is to sync my Receptor to the S/PDIF sync using the MOTU 896 as a clock. Use Crossover Ethernet instead of a hub.
Make sure in your audio setting the Virtual Instruments are in real time. For some reason that can actually cause Receptor to play track almost a second earlier in DP 7.
Some times I am too impatient negotiate with Uniwire as my audio input into DP 7, and I resort to the ADAT outs or Audio outs to get the job done.