mjfe87 wrote: florian_heinen wrote: ubeyaudio wrote:
Hi, could it be a solution to connect the 802 by firewire to thunderbolt adaptor? Better than usb2 to thunderbolt 3? Thanks in advance.
Yes, that's the setup I am working with (except that I have a MBP 15", 2018). I still have audio dropouts due to CPU spikes. But at least it is functional. When I connected my FF 802 via USB it was impossible to work or stream any audio with it.
Do the spikes show in Activity Monitor? I was under the impression the commonly reported USB dropouts do not accompany visible CPU spikes and are due instead to OSX background checks taking priority on the same thread?
I'm runnng Ableton Live 10.0.5 in MacOS High Sierra 10.13.6 with RME UFX connected via USB.
In my new Apple MBP 2018 I cannot see the spikes happening in the core monitor or in the Amonitor. Only when I hear it happen it is visible right away in the console with a long list of Coreaaudio related messages.
I've had my RME UFX unusable now for quite some time already and it began with my older 2015 MBP although I could reproduce the same stutters in it without the FW UFX too which made me to do the decision to go and buy a new MBP which did not fix the issue at all. I could see a lot of improvement in performance but the drop outs came back right away after installation of everyhting.
I haven't been able to reproduce same stutters though with my new laptop that where occuring with the older one, only audio drops. In Live I was able to get the whole audio to stutter to the point the machine could barely play sound at all anymore. That has not happen with the new machine with the same projects. This was making me going nuts since it seemed that there was not any rational pattern for that to happen. Sometimes everything worked fine with the load and sometimes even just opened computer started stuttering right from the opening of the project.
All the problems started maybe a year or so ago and I've been experiencing these performance and drop out/stutter issues in our studio too where we have UC and FF800 connected to our laptops via TB hub. I have been suspecting that by that time some firmware update came and did something to the 2015 MBP's which made them unreliable with the audio softwares, sound cards and devices like that, maybe or maybe not, cant tell for sure.
With the new MBP 2018 I'm able to work much better but every now and then the drop out will happen and sample rate will flip and get back to normal couple of seconds later. This always shows in the Console after the time sync process has started which then will follow the audio device to stop.
default 22:42:14.095352 +0200 UserEventAgent SUBMITTING: <private>
default 22:42:14.095441 +0200 UserEventAgent Registered XPC Activity: com.apple.timed.ntp.wanted
default 22:42:14.095559 +0200 dasd Submitted Activity: 0:com.apple.timed.ntp.wanted:976FFB <private>
default 22:42:14.095692 +0200 dasd Activity <private>: Optimal Score 0.5002 at <private> (Valid Until: <private>)
default 22:42:14.167300 +0200 kernel + IOAudioEngine[<private>]::stopAudioEngine()
default 19:31:54.931180 +0200 dasd Activity <private> start beyond the 21 hour interval
default 19:31:54.931319 +0200 UserEventAgent SUBMITTING: <private>
default 19:31:54.931413 +0200 UserEventAgent Registered XPC Activity: com.apple.timed.ntp.wanted
default 19:31:54.931524 +0200 dasd Submitted Activity: 0:com.apple.timed.ntp.wanted:7F2909 <private>
default 19:31:54.931657 +0200 dasd Activity <private>: Optimal Score 0.5002 at <private> (Valid Until: <private>)
default 19:31:55.067233 +0200 kernel + IOAudioEngine[<private>]::stopAudioEngine()
Maybe this process has nothing to do with the drops but it is happening every time with the same pattern though.
This has been in the log in between the lines too:
default 22:42:14.368960 +0200 powerd Process coreaudiod.149 TurnedOff PreventUserIdleSystemSleep "com.apple.audio.de_RME_driver_USBAudioEngine:1637E5B.context.preventuseridlesleep" age:00:26:00 id:4295000775 [System: PrevIdle DeclUser kDisp]
I've been running my UFX now via USB connected with Anker USB 3.0 hub which still will show my UFX conneceted in the USB 2.0 HUB inside the laptop. I will try to swicth up to TB with 2 Apple dongles and see if it will make this problem to go away. If not then I'm only left with one option which will be to buy a new device made for TB from another brand unfortunately.