Q: clipping sound on new iMac when Logix X is running

Foveus, are you running your OS and APPS on that external USB drive - specifically - are you running Logic on that External drive? or only the OS?

I have been going through the same troubles as all of you on this thread - i bought a brand new i7 iMAC, 32GB RAM - and the Fusion Drive - and had the "snap crackle pop" - problems (using FOCUS RITE USB and Firewire flavors) - I now just bought another i7 - same specs, but with the SSD drive (NOT THE FUSION DRIVE), and have similar HISS/POPS/CRACKLE/ and delay of incomming audio signal - same type of shiz for the most part.

I'll try anything at this point - been down for going on 60 days now... I'll go get an external USB drive, install the OS on it, and boot from that I guess. Would restoring my "Time Machine" to this new USB drive do it? or did you use a clean OS install? sorry for the hassle but if you could detail your steps - i'd love to follow them.

Thx.

js,

Just to briefly jump in here...

You have to run everything from the external drive because as soon as the FD is accessed, the problem will return.. and the point of using an external boot drive is to prevent the FD from being used...  which in turn prevents the FD software controller software working and the buses becoming overloaded... so you use an external drive with everything on it so the FD drive is not accessed or used in any way.

But given you don't have a Fusion Drive any more, that method and fix wont help you.... as it's just for FD iMacs... and not SSD iMacs.... which don't have that same issue.

So,

Do you still have this crackling issue when you use the FW port on your Focusrite? (via a FW to TBolt adaptor because I believe your iMac doesnt have a FW port?) It makes sense you will have an issue if you are using the USB2 port on the Focusrite because of the USB2/3 issue.... but FW should be unaffected using the latest drivers... given you have a SSD'd iMac now

Also, which specific Focusrite model do you have? I ask because there are specific beta fixes out now from Focusrite in regards to some of their models and Mavericks,..

See here for the latest beta releases...

http://beta.focusrite.com/releases/

Hello everyone , am back to share my experience and happy to report my problem is solved .

The Motu ultralight hybrid did solve my issue with soundcard and new SSD imac USB 3 issue . After getting a replacement from B&H photo , they helped me actually sort my problem , shipping charges overseas etc , covered most of it they are the best place to buy from no doubt. I recomend everyone to buy from them and trust their customer service superb.

Special thanks to Art of Sound for getting me on the right direction , thanks buddy you were very right , Audio Kontrol from Native instruments is badly configured compared to quality soundcards no wonder they have phased it out. I think they thought we cant fix it so they stopped it . using it on my windows 7 in past  I always got crackles and pops recording through a mic it was so irritating and seemed so impossible and I thought maybe its my laptop cpu, and did all the tweaks you can imagine.

When moved to the new Imac it replicated all the pops and clicks combined with other problemsnot being a  USB3 compatibe so it was not usable a bad experience.

While I do have to say I love all the other products that Native instruments offer , I use their soft synths and libraries in all my setup and love their work but for soundcards please avoid you will be disappointed speaking mainly for audio kontrol here from my experience...

It took me a long way to reach here I think about 3 months of aggrevation but if you got the setup right from the begining and had teh patience the new imac is suberb to the limitations i had with my previous laptop specs.

My isue addresses mainly the USB3 competibility on SSD not the fusion, thanks for everyone that tried to help and I hope somehow it gives hopes to others that there is a soultion after all and you will be very happy with your new Imac . 

Hey Organik76,

Good to hear from you again and really good to hear you got everything sorted out and working for you

I assume from what you wrote, that you got a faulty Motu initially and once B&H replaced it all was good?

Also really glad to hear the B&H are still providing great service no matter where you are.... As you know i have bought quite a bit of gear from them over the years and like yourself, I highly recommend them....

Anyhow.. Thanks again for letting us know how things worked out...

Much appreciated!

Cheers..

Nigel

Organik76 wrote:

 

Hello everyone , am back to share my experience and happy to report my problem is solved .

 

 

Yes, good to hear, it was a long time coming but good to see everyone followed through.

Her Art you are correct I got a faulty Motu that was locked up and gave me all sort of problems . It came in without the adaptor so had a bad jump start to begin with . As soon as I got the replacement all worked .

As you have mentioned earlier I still have to plug in the adaptor at all times for it to work with USB .

The firewire cable though did not work at all..it disconnects and does not recognize at certain times, which is not a problem for me at this point because I can confirm using USB while connected to the adaptor works just fine. 

Hey Pancenter thanks as you tried helping everyone in the thread as well. 

Yes js_buton_pusher, to confirm what Art of Sound has already said, I am indeed running everything off of the external hard drive. When I first got the iMac in late November I spent days upon days reinstalling all of my various plugins (Komplete 8, Maschine 2, Trillian, IK Multimedia, BFD2 & BFD3, Ableton Live 9, Logic X etc etc etc) to the 3TB internal Fusion Drive. But of course this drive proved to be the source of the audio problems and was useless for recording. I spent most of December, including a lengthy vacation, trying to work around the problem like most people on these forums. After trying literally every combination of ins/outs/cables/interfaces/external and internal DACs/etc I realized nothing was going to solve this problem as long as the FD was in use. If I absolutely needed to get reliable audio into Logic I had to use my 13" MBP with the UFX ... no pops or dropouts but certainly inconvenient since the screen is tiny and the smaller hard drive doesn't have all the installed plugins (it was never intended to be used for audio production). So, after reading that someone else here had luck booting from a cloned OS/FD on an external drive I eventually tried that .. and it worked flawlessly. If the public 10.9.2 or later fixes the problem 100% (not 90%) I will gladly go back to the internal FD and use the external drive simply as backup. I would prefer this of course as I'd like to take advantage of the FD benefits, afterall that's why I bought it, but I'm not holding my breath.

Hi everyone,

also with my Korg Kronos X, the USB connection to my brand new Late 2013 iMac (no Fusion drive) doesn't work properly. Sounds from the Kronos to the iMac are completely overdriven and distorted most of the times. The other way around there's no distortions but dropouts. However, there was also a short period of time where things seemed to work out almost fin, without me having changed anything. Now it's back to not working again.

As I have no Fusion Drive, this can't be the issue. Also I have installed the Korg drivers dating from december 2013, allegedly being compatible with Mavericks. Using a powered USB 2.0 hub between the devices did not make any difference.

Apple support suggested I check back with Korg. While I am doing this, are there any other hints on what I could try?

What I have tried so far: Set the iMac back. Download the latest Kronos firmware (version 2.1.1. ) and drivers ( Korg_USB MIDI Driver_1.0.7_For_Mac ) . The device is recognized by the iMac as audio and as a midi device. The sample rate is set to 48,000 Hz everywhere. I've tried with another USB cable. Likewise, I have tried to use a USB hub between the two devices.

Any help would be greatly appreciated!

Thanks in advance.

System configuration:

Kronos X V. 2.1.1.

iMac 27 '' , Late 2013 , 3.4 GHz Intel Core i5, 8 GB 1600 MHz DDR 3 , OS X 10.9.1. The iMac doesn't have a fusion drive.

Got an external drive and cloned my FD over to it.  Seems to be working but I haven't done a lot of testing and won't have time for another week (leaving on a trip), but what I can say is that the external drive is so much slower; I miss the FD.  I surely hope Apple gets this all worked out so the FD can be used with external audio devices.  For recording in Logic I suppose this won't be a problem but for many other things the longer wait time is quite noticeable.

Is there any noise that Apple will fix this FD/pop problem? I suffer.

Michael Monagan wrote:

 

Is there any noise that Apple will fix this FD/pop problem? I suffer.

Supposedly the next operating system update will include a fix.

I chatted with apple last night and the representative was unaware of the issue.  It popped up with my new 27" imac i7 3.5ghz / 3tb fusion drive using an RME Fireface UFX through either USB or Firewire (through a thunderbolt display).  Can't even watch a youtube or listen to music through my card...

Listening through the iMac speakers/headphone jack, no issues.

Ok i've only been distrought for 2 days, unlike some of you guys who are at it since November, but it's time for a fix...

10.9.2 Beta 4 was released.

http://www.cultofmac.com/264744/os-x-mavericks-10-9-2-beta-4-now-available-devel opers/

According to this website, it means that the public release will arrive soon (this week maybe), meaning that our problems will officially end (I had the opportunity to test the Beta 2 and everything worked fine with Apogee Duet Firewire via thunderbolt, Fusion Drive 1TB).

Fingers and toes crossed.

Anybody have a link that explains how to "rejoin" a Fusion drive?

Just trying to get ready...