Topic: Adat: Fireface Ufx & Motu Traveler
Hello All
I’m having a few problems with ADAT Audio on the UFX....
System Spec is a Dell M6500 i7 Quad Core, 4GB Ram, WXP SP3 and Cubase 5
We have a MOTU Traveler Mk1 (firmware 1.07 and Latest Cuemix Software) Connected to the UFX (latest Firmware & Software) Via 4 channel ADAT (2 optical Cables 1 in 1 out) also Word Clock Cables Interconnecting both devices and the UFX is Set to Master –
Sync Check is Stating "Sync 88.2kHz" on both Wordclock and ADAT Input 1.
Am using the 4x Microphone Preamps on The UFX and the 4x Mic Preamps of the Motu Traveler.
The traveller's pres are assigned to output on 4 ADAT Mono Channels through the Cuemix Software (this is achieved by panning Mics 1 and 2 to L & R on mix bus 1 and Mics 3&4 Panned L & R on Mix Bus 2) as described by motu.
When we open up Totalmix FX we can See the 4 x individual ADAT Inputs working as expected and when we monitor them directly to the loudspeakers the Traveller's signals appear to sound crisp and clean (though not as crisp as the UFX Preamps )
Problem starts when we record.
Using the RME ASIO and a 256 (or above) sample buffer on each device we create 8 Clean Tracks...
Problem really starts when we zoom right in on the timeline...
The tracks recorded from the ADAT Input have an unusual Square wave "carrier frequency" attached the actual shape of the waveform as if it has been poorly sampled? - Usually when you zoom right in you see ascending or descending sample steps..
Then tried the UFX over Firewire (with the Travelers firewire disconnected and running in standalone mode)
Still the same problem....
We tried the Traveler on its own direct via firewire and Waveforms were normal.. thank goodness -
Then Tried the (UFX Asio Driver with the Motu via Adat & WC Slave) sample rate at Single Speed 44.1 kHz - Problem Gone... Also tried the Motu Asio Driver in WC master mode and still no Problem...
In all combinations of these Mixes and matches at 44.1 / 48Khz There appears to be no problems until we enter into 2x & 4x Speed areas where the jitter is very bad.
We then tried running the RME into the Motu Using Matrix to route ch 9 10 11 12 over adat into the motu...
At 88.2 we still have problems - at 44.1kHZ all is ok -
We tried 2 x travelers (1 via adat at 88.2 (4ch) and the waveforms are properly digitised)
Test tones were a simple whistle to create smooth waveforms.
TotalMix does not show any issues when both units connected & Powered on
SyncCheck Reports all to be OK and “Sync”
Any advice would be greatly appreciated -
UFX_MAN