Presonus Audio electronic 26x26 FireWire Recording System - Manual (Page 25)

3 Control Console
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3.4 Hardware Settings
Click on the Hardware Settings tab to access the following:
1.) Sample Rate (PC Only*): You can set the sample rate to 44.1, 48, 88.2, and
96k. When set at higher than 48k, the ADAT channel I/O is limited to 8
channels utilizing both ADAT ports and the Dual SMUX standard. A higher
sample rate will increase both the fidelity of the recording you will make and
the subsequent file size for every audio file.
2.) Buffer Size (PC Only*): You can set the buffer size from 64 to 1024 samples
per buffer. The buffer size will affect the latency (roundtrip time it takes audio
data to go into the computer and get processed back out to the FIRESTUDIO).
The lower the buffer size is set, the lower the latency will be, and the higher the
stress will be on your computer. Thus, if you experience digital ‘pops and
clicks’ in your audio playback, try adjusting the buffer size higher to reduce the
stress on your computer.
*When using a Mac and OSX, the sample rate can only be changed in
the Audio MIDI Setup Application. Buffer sized are changed in your
DAW.
3.) Clock Source: The clock source setting will determine where the FIRESTUDIO
is deriving its clock. Unless clocking to an external device, the clock source
should be set to Internal. You can choose between SPDIF, ADAT 1, ADAT 2,
or Word Clock when selecting an external clock source. The FIRESTUDIO will
sync to the samplerate the external device is set to when switched to any of the
external clock sources, and the sync light will be blue if it is in sync.
4.) Terminate BNC: Check this box to terminate the BNC Word Clock input. This
may need to be done to achieve stable sync depending on the external device
you are syncing to via BNC Word Clock.
5.) Reset Names: Clicking on this button will reset all user-defined names in the
Control Console.