
The Audio Driver
Audio level
This control sets the hardware Input Reference level and
In Figure 72, the Audio Level control is different depending on which input is selected.
The Input Reference level is meaningful only on the analog unbalanced and balanced inputs, and is calibrated differently for each when a digital input is selected this control is disabled. This is a hardware gain control with the default level chosen such that the expected amplitude of a full volume input signal will have adequate headroom without clipping. If you do experience clipping, or are working with low- level signals, you can adjust this level. On this control, a higher reference level results in lower gain, so the quietest setting is at the top of the scale. Click Default to restore the default value.
Figure 74. Input reference level
The Boost setting is a software gain adjustment that applies to both analog and digital inputs. You can set Boost individually for each input. It supplements the system mixer volume controls by providing a wide adjustment range. You can use it to calibrate or normalize input levels across multiple inputs; or to accommodate microphones or other
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