Word Clock Issue - via ADAT and Coax.

dazzjazz · Post by **dazzjazz** » Wed Mar 01, 2017 8:44 pm

Hi all,

I'm having an issue with a random clicks about every 30secs when using my Focusrite Clarett 8Pre together with my MOTU 896MK3. I am using the Clarett 8Pre as the master clock, connected with a coax cable to the Word Clock input of the MOTU unit, and an optical cable to transmit the audio from the MOTU to the 896.

I have the latest drivers for both machines.

The clicks still happen even when I use ADAT clocking (yes I have another ADAT cable connected.) As far as I can tell it SHOULD work...any ideas?

Darren

HCMarkus · Post by **HCMarkus** » Wed Mar 01, 2017 11:31 pm

Try making the MOTU your master?

You are setting the clock source appropriately in your DAW, right?

bayswater · Post by **bayswater** » Thu Mar 02, 2017 8:31 am

HCMarkus wrote:Try making the MOTU your master?

You are setting the clock source appropriately in your DAW, right?

I think that's probably it. I always had this problem with timing clicks with a 2408-2 and 828-3 when ADAT was used for timing. Making sure the timing source was Wordclock always fixed it.

David_Focusrite · Post by **David_Focusrite** » Thu Mar 02, 2017 12:53 pm

Hi dazzjazz,

Were you able to resolve the issue with clicks in your audio?

If you were not, can you tell me which interface do you have selected as the playback device for the DAW?

Which version of Focusrite Control do you have installed? It will be ideal to confirm your settings in Focusrite Control as well?

With toslink cables running both ways, are you able to get clean audio from the MOTU to the Clarett?

Best regards,
David // Focusrite Technical Support

dazzjazz · Post by **dazzjazz** » Thu Mar 02, 2017 3:32 pm

Hi David,

No - I'm still having audio clicks about every 30secs or so.
I have the Focusrite selected in my DAW.

Right now I'm trying to use the MOTU ADAT B input to receive clock, to keep ADAT A channel clean with just audio.

I have the latest version of Focusrite Control installed also.

Argggh!

dazzjazz · Post by **dazzjazz** » Thu Mar 02, 2017 9:21 pm

I think I have resolved this issue - using ADAT Port A on the MOTU 896 to transmit audio to the Focusrite Clarett and ADAT Port B to receive clock signals seems to work.

Fingers crossed!

David_Focusrite · Post by **David_Focusrite** » Fri Mar 03, 2017 4:24 pm

Hi dazzjazz,

You should not need to utilize a BNC cable for clocking.

What sample rate are you running?

Would you ming opening a support ticket with us so that we can request some more system information to look into all possible causes?

https://support.focusrite.com/hc/en-gb/requests/new

Best regards,
David // Focusrite Technical Support

dazzjazz · Post by **dazzjazz** » Sat Mar 04, 2017 11:41 pm

Hi David,

I spoke too soon on my previous post, the MOTU is losing sync again.

I'm using 96khz sampling rate.
While I understand I can get clock via either the dedicated word clock or the adapt cable - neither is reliable. I've basically given up and going to take the MOTU 896 out of the equation as I suspect it's the culprit, although why I don't know - it's got very, very few miles on it. I've never used the word clock or adapt connections until this week.

I'm going to borrow an Octopre and use that. I have a really important session soon and need things to work smoothly. Thanks for your input - I might do as you suggest and start a support ticket.

dazzjazz · Post by **dazzjazz** » Sun Mar 05, 2017 6:58 pm

The latest thing I'm trying is configuring DP to have both audio interfaces attached (Thunderbolt for the Focusrite, Firewire for the Motu). Both are selected in Configure hardware driver, with Host Buffer Multiplier set to 2. Seems to be working okay.

HCMarkus · Post by **HCMarkus** » Mon Mar 06, 2017 12:54 am

FYI, I have ben running a PreSonus Digmax FS connected via ADAT Litepipe and slaved via BNC to a MOTU 828mkII (Master Clock connected to Mac via firewire) without issue for years.

The nice thing about this approach is all i/o show up in a single instance of CueMix.

Did you ever try slaving the Focusrite to your MOTU box?

kennyatfocusrite · Post by **kennyatfocusrite** » Fri Mar 31, 2017 12:07 pm

Hi All,

For any people still experiencing this problem please feel free to check out the links below which will direct you to the Focusrite Help Centre where you can search more info on Focusrite products and integrating them with other Products. You can also find the links for inquiring with us here in Tech Support.

Thank You!

https://support.focusrite.com/hc/en-gb/ ... th-my-iMac - Mac OS

https://support.focusrite.com/hc/en-gb/ ... t-OctoPre-

Kenny Henry // Focusrite Technical Support

MOTUnation.com

Word Clock Issue - via ADAT and Coax.

Word Clock Issue - via ADAT and Coax.

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