Mac OSx Yosemite x Korg Kronos

rs.felicio · Post by **rs.felicio** » Fri Oct 17, 2014 11:14 am

Hello,

Just to report, as during all beta testing period, everything working perfectly here after the upgrade to the final version.

Rubinho

SixStringGeek · Post by **SixStringGeek** » Fri Oct 17, 2014 8:39 pm

rs.felicio wrote:Hello,

Just to report, as during all beta testing period, everything working perfectly here after the upgrade to the final version.

Rubinho

Thanks! Now if we could just get 64 bit plugin support...

neomad · Post by **neomad** » Thu Dec 11, 2014 10:58 am

Hi,
Just upgraded to Yosemite and latency and audio drop out just appears. Using audio from my mac thru Kronos usb interface is impossible, even listening a single mp3 with itunes...

Are you experiencing that guys?

ashboe · Post by **ashboe** » Thu Dec 11, 2014 11:12 am

neomad wrote:Hi,
Just upgraded to Yosemite and latency and audio drop out just appears. Using audio from my mac thru Kronos usb interface is impossible, even listening a single mp3 with itunes...

Are you experiencing that guys?

Not getting any lag at all on yosemite

Vkhandelwal · Post by **Vkhandelwal** » Thu Dec 11, 2014 11:45 am

I have also observed no issue with yosemite

neomad · Post by **neomad** » Thu Dec 11, 2014 1:28 pm

Update with same Yosemite versions in 2 different macs

Macbook pro 2010 ,i7, 8gb ram, 500 gb hard disk, usb 2 : kronos works perfectly

Macbook pro 2014 retina, 16 gb ram, 500 gb ssd, usb 3 : kronos audio is simply unusable

Is a usb 2/3 issue? Ssd vs classic hd?

Any input will be warmly welcome

Thanks in advance

BobTheDog · Post by **BobTheDog** » Thu Dec 11, 2014 7:36 pm

Kronos has problems with my USB 3 port on my MacPro, It isn't the only thing that does though, I'm not sure what standard of USB3 apple use!

A solution that worked for me is to stick a USB 2 hub between them.

pedro5 · Post by **pedro5** » Thu Dec 11, 2014 8:54 pm

I had problems with usb3 on an imac (late 2013) two failed to work.
Also,had to use an usb2 hub with an external usb3 boot drive.

It has since been repaired by having the logic board replaced (the usb3 ports are mounted onto this) and all is well.

The mac usb3 ports need to be configured accordingly to suit their inputs and this can take more time than expected,it can be checked via System Information though.
Some devices are better than others in doing so,but in theory they should all work.
For the Kronos,a workaround is as BobTheDog suggests....use an usb2 hub in between the Kronos and mac.

Older macs seem to cope better with usb somehow....unless there are deffective ports involved on the newer ones..??

As for audio,it may be related to the settings,either audio midi or the sound applet(or even both....).
This can be tricky when using an aggregate device set up, which needs careful setting.

Currently I'm using Mountain Lion with aggragate devices and everything works fine.
I have tested Mavericks succesfully as well,but I prefer the older osx.

Another cause for audio problems is with the core audio,it's a complex part of a mac which can go wrong when it needs to deal with certain settings.
An effective cure can be difficult to find other than paying close attention to those settings,either via other software or the user.

neomad · Post by **neomad** » Fri Dec 12, 2014 8:53 am

Is not a question if Yosemite. As I said, my mbp 2010 with Yosemite works perfectly with Kronos.

Is a ssd disk or/and usb 3 issue with Kronos. I will try to plug a 2.0 usb hub and let you know. Frustrating anyway

Best,

neomad · Post by **neomad** » Fri Dec 12, 2014 2:03 pm

Updated tests:

A hub 2.0 between Kronos and MBP2014 improves the situation after 4/5 minutes connexion. Keep trying...

Regards

pedro5 · Post by **pedro5** » Fri Dec 12, 2014 8:43 pm

Pleased that you're having some success with the usb2 hub connection.
Forgot to say that it's unlikeky to be an ssd problem.

I mentioned my set up as a point of interest and hope it didn't suggest the problem could be related to Yosemite.
As said,Mountain Lion is just a prefered osx that I use and have no plan to update to another....yet.

Wish you continued success with the troubleshooting etc.

Best Wishes.

neomad · Post by **neomad** » Fri Dec 12, 2014 9:07 pm

pedro5 wrote:Pleased that you're having some success with the usb2 hub connection.
Forgot to say that it's unlikeky to be an ssd problem.

I mentioned my set up as a point of interest and hope it didn't suggest the problem could be related to Yosemite.
As said,Mountain Lion is just a prefered osx that I use and have no plan to update to another....yet.

Wish you continued success with the troubleshooting etc.

Best Wishes.

Thank you Pedro. My doubts about SSD are related to old problems with Fusion Disks, so my initial thoughts were in that way.

Anyway something is not going well: I need to wait 4/5 minutes to have decent latency and sound quality.

I hope that Kronos SO will be updated on that matter soon.
Best wishes Pedro !

SanderXpander · Post by **SanderXpander** » Fri Dec 12, 2014 9:40 pm

No idea where the SSD issue idea came from but there is no way that could be the problem, it has practically nothing to do with anything except for streaming samples when playing certain sounds and saving your data.

It is a well known problem that USB3 is not 100% backwards compatible with USB2, especially not for audio streaming which requires consistent performance and low level access. If you have any USB2 ports on that computer, I would recommend trying them. A hub is never a great idea but it may work if you have no other options.
Yosemite may have altered some drivers for your USB ports, I'm not sure about that. Also, although most Macbooks look the same on the outside, they don't always use the exact same hardware, even within a series, so it is not unthinkable that you have a different USB3 chip than the one of the other members on this board. So it doesn't really have to be Yosemite specifically, just the combination with your hardware (and other software) in that computer. There are many things that have to be working together perfectly, if one changes it can break the system.

That said, I find it highly annoying how often Apple brings out large version updates and practically forces you to do them (or suddenly you can't use iCloud anymore or sync your iPad or whatever). I would seriously consider dedicating one system for music and foregoing on updating altogether unless some core piece of software (like your DAW) requires you to.

pedro5 · Post by **pedro5** » Sat Dec 13, 2014 12:44 am

SanderXpander.
I think the ssd idea was related to the mac,rather than the Kronos....
There have been drive problems in the past,as neomad explained it was due to experiences with Fusion Disks etc,which was a huge problem for many.

Valid point on updating operating systems needlesly,I've decided to stay with the one I feel most comfortable with and everything now,works well.
(A matter of luck,perhaps...which these days shouldn't be the case,things are supposed to work anyway).

neomad
I'm disappointed to learn that you're still having problems.....
Don't understand the waiting part,though...??

Have you tried the usual tricks....another usb port,changed the cable,checked settings etc....?

One thing to try is to select "Resample This Device" (for the Kronos) in the Audio midi Set Up and leave the mac Built In audio parts to its default 32bit float.
(This worked for me...)

Keep trying !!!

Best Wishes.

neomad · Post by **neomad** » Sat Dec 13, 2014 3:16 pm

Hi folks !

I can confirm 100%: problem is not Yosemite but USB3. (scroll up, the result of the tests with same OS in different computers).

I will try a 2nd hub 2.0, powered one. Some hardware manufacturers advice to do so.

Best solution is to force USB3 to work on USB2, but not sure if we can do this with mac...

Keep you posted !

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