User`s manual

Page 5
3 Standalone Controls
Controls on the MicroDAC 5 unit are used to configure the audio I/O and also to
provide a limited set of filter controls. While the PC software provides much finer
control of the filtering in the MicroDAC 5 unit, these panel controls can be used to
configure the MicroDAC 5 unit when not connected to the PC. These
“standalone” controls are described below.
3.1 Front Panel
Figure 3-1: MicroDAC 5 Front Panel
3.1.1 Audio I/O Format
Use the INPUT SELECT switch in the upper left corner to select ANALOG,
S/PDIF, or TOSLINK audio format for the primary inputs. This selection affects
only the LEFT and RIGHT input signals. Regardless of the selection, reference
signals can be input on the LREF and RREF ANALOG inputs. Also regardless of
the selection, the output audio is sent to both the ANALOG OUTPUTS and the
TOSLINK OUTPUT.
3.1.2 Headphone Controls
Use the controls in the lower left corner to control the audio you listen to on the
headphones. Use the INPUT/OUTPUT switch to select the audio you want to
listen to on the headphones (via the 3.5mm jack). When INPUT is selected, you
will hear the primary input signals – left and right for the stereo modes, or left in
both ears for the mono modes. When OUTPUT is selected, you will hear the
processed output audio. Use VOLUME to adjust the listening level on the
headphones.
By default, these controls affect only the headphone audio, and the ANALOG
OUTPUTS and TOSLINK OUTPUT always contain output audio. However,
using the MicroDAC 5 Configuration Utility software, you can enable a “Line Out
Toggle” mode in which the rear panel audio outputs toggle along with the
headphone output. Regardless of whether rear-panel output toggling is enabled,