Q: I have a Pro Tools session recorded at 24-bit, 96 kHz. I am trying to send the mix from the Pro Tools rig into an Alesis Masterlink at 16-bit, 44.1 kHz using the sample rate conversion (SRC) of the Rosetta. I am clocking all hardware with a Big Ben. I do not understand how to clock the Pro Tools rig at 96 kHz, while having the Rosetta send out a 16-bit, 44.1 kHz signal to the Masterlink.
A: Make sure that the Rosetta is not clocked to the Big Ben. In order for it to perform SRC, the Rosetta must be set to the sample rate of the destination device and must be set to its own internal clock. Please refer to page 6 of the Rosetta 200 User's Guide for step-by-step instructions for SRC.
Note: It is not possible to use SRC with an option card installed in the Rosetta 200:
When an option card is installed, it is not possible to set the Rosetta 200 to a different sample rate than the session sample rate of the DAW. This makes it impossible to send audio out of the DAW at one sample rate and then send it out one of the Rosetta 200's digital outputs at a different sample rate using SRC.