Variable latency on US-1800

  • Thread starter Thread starter Miltonfest
  • Start date Start date
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Miltonfest

New member
I've been recording for ages using an M-Audio firewire device, but I needed more channels so got a TASCAM US-1800.

I'm now seeing a weird problem on the TASCAM.

I create a basic midi track to trigger a drum sound on an outboard sound module and then record it back on an audio track. Easy. I then record it again and the new audio track is out of synch with the original, I do it again and it's out of synch again, and so on. What I'm finding is that I can do this a number of times and the timing on the recorded audio tracks can vary by up to around 100ms, when actually they should all be spot on.

I'm using Sonar 4 and have also tried it on Sonar 8 with the same problem.

Any ideas would be welcomed. See attached image, recorded at 120bpm.

Thanks,

Phil.

Tascam us-1800, driver 2.02
Windows 7 32
Intel core i5-3450 @ 3.1Ghz
4 Gb RAM
Virtual memory fixed at recommended value
SATA internal hard drives.

US1800Latency.webp
 
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