ART Pro Audio TubeFire 8 - Eight Ch. Mic Pre with Firewire - Manual (Page 15)

Adjusting system latency with a Windows PC
Adjusting the buffer depth varies the latency of the computer system used together with the TubeFire 8™.
Typical recording software programs utilize either WDM or ASIO drivers. Adjusting the buffer depth control to
the left will reduce the buffer size and therefore reduce the latency. The actual time readout is for one buffer.
Most programs use at least two or three buffers (one for input, one for output, plus some finite number for
signal processing inside the program).
Depending on which driver you are using, click and hold either the WDM the ASIO slider knob until it is in the
desired position. The numerical readout to the right of the slider indicates the buffer length in both time and
samples. Once the adjustment is done, click the appropriate Apply button to make the change active.
There will be a slight delay as the settings are updated.
NOTE: The CuBase LE recording software package, which is included with the TubeFire 8™, uses the ASIO
driver as shown below.
FIGURE 9 - ART ASIO Driver buffer depth adjustment
Too short of a buffer depth setting will create audible drop outs (digital data gaps).
Monitor the ASIO Drop Outs for 10 - 20 seconds to assure that the number remains at zero. If they are NOT
zero, then increase the buffer length until the ASIO Drop Outs number reduces to zero.
14