Topic: FF800+2xADAT+Sonar/Win7 64bit -> Dropout on long multitrack recording
Hi,
I have a mobile recording unit that has FireFace 800 + 2x ADAT 8-channel mic preamps in it. The audio setup is connected to my Intel i7 Sony Vaio laptop, running Windows 7 64-bit. I'm using SONAR (version 8.5 at the time, because it seems more stable than X1).
Recently I was doing a live recording and encountered a problem which I haven't experienced before - I recently updated to the latest Fireface drivers. After a bit over 1 hours of recording on 24 tracks @ 44.1KHz/24-bit, the HDD load indicator goes into maximum (before that it's at around 8-10% max so no problems at all), and the audio consequently drops out with a digital peak clip left on the end of each track. Sonar complains something about the lack of hard drive space, but this cannot be the case as I had nearly 75GB of empty space on the laptop.
The other flaw I seem to be getting are these weird, short (and seemingly random) audio dropouts which are not audible when you're monitoring the recording, nor cause a dropout error in SONAR, but later sound out as glitches occuring every now and then - at these glitch points, the recorded audio sort of "jumps" simultaneously on all recorded audio tracks for 100-300ms or something around that.
I'm wondering if this a SONAR-related incident or does it have something to do with the Fireface? Does anyone have any tips on how to avoid these things? I've already set the ASIO buffer to maximum and tried tweaking other settings as well.
Does RME have any of their own "suggested settings" for multi-track recording with SONAR when using Fireface sound cards?
All help highly appreciated.
Thanks.