PreSonus FireStudio Tube - Manual (Page 25)

CONTROLS AND CONNECTIONS
22 | PreSonus 2008
3.1.2 Launch Window
From the Launch Window, you can set all the basic controls for your FireStudio Tube.
 Sample Rate Selector
Changes FireStudio Tube Sample Rate
You can set the sample rate to 44.1, 48, 88.2, or 96 kHz. A higher sample rate
will increase the fidelity of the recording but will increase the file size and the
amount of system resources necessary to process the audio.
 Buffer Size Selector Changes the FireStudio Tube Buffer Size (Windows PCs Only)
You can set the buffer size from 64 to 4,096 samples. The buffer size determines
the latency, which is the roundtrip time it takes audio data to be converted from
analog to digital and back to analog. As a general rule, the higher the buffer size,
the better the system performance, but the less playable virtual instruments
become. In general, 512 samples (11 to 12 milliseconds) will provide you with a
buffer that is large enough for optimum system performance, but small enough to
be unobtrusive. You should set your buffer size and sample rate prior to
launching your host applciation.
On Macintosh, the buffer size is set from inside your host application.
 Operation Mode Changes How the FireStudio Tube Driver’s Buffer Size is Set
 Normal Mode. Input and Output buffers are both identical to the Buffer
Size setting.
 Safe Modes 1-3. Increases the Output buffer size for added stability.

Clocksource
Changes the Clock Source for the FireStudio Tube
The clock source setting will determine the port from which the FireStudio Tube
is receiving word-clock information. Because the FireStudio Tube does not have
digital inputs, you will only use this setting when daisy-chaining the FireStudio
Tube to a FireStudio Family device that does have digital inputs.
 Device Window Button Opens the Device Window
Click on this button to open the FireStudio Tube Mixer.
To give your FireStudio Tube a custom name, double-click on the default label
(FireStudio Tube) to open a text field. When you have finished entering your
custom name, hit the Enter key.