Metric Halo Mobile I/O - Manual (Page 154)

MIO Console Overview
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– The WC Out pop-up menu allows you to select the output clock signal the Mobile I/O generates on its WC
Out BNC connector. The available choices are 1x and 256x. The 1x signal is appropriate for driving devices that
accept a Word Clock signal. The 256x signal is appropriate for driving devices that accept 256x or SuperClock
signals. Refer to the documentation for the external device to determine what is the most appropriate clock
reference for it.
Figure 11.22: WC Out Pop-up
– The DI Source pop-up menu allows you to select the active input for the digital input pair. The choices
are AES and S/PDIF. This selector physically switches the input to the digital audio receiver between the RCA
input and the XLR input. 2882/ULN-2 ONLY
Figure 11.23: DI Source Pop-up
– The DI SRC button enables and disables the asynchronous sample rate converter (SRC) in the Mobile I/O
digital audio receiver. When the SRC is engaged (button illuminated yellow), the digital audio receiver will
automatically synchronize the input signal to the Mobile I/O system clock over a wide range of sample rate
ratios. 2882/ULN-2 ONLY
Figure 11.24: DI SRC Button
This allows you to, for example, digitally transfer a sample from a CD player into a 96k session without any
clocking problems. If you want to make bit-transparent transfers, you will need to disengage the SRC and
ensure that the Mobile I/O and the external device are both using the same digital audio clock via one of the
Mobile I/O synchronization mechanisms.
– The High Power button enables a higher voltage rail for the 2882’s analog outputs providing greater output
headroom and reduced distortion at high analog output levels, but requires substantially higher (>5W) supply
power. High-power mode is useful when driving the outputs at +4 dBu levels. This is most appropriate when
sending line-level out of the 2882 to equipment with high analog rails like large format consoles. When high-
power mode is enabled, the 2882 can put out +24 dBu balanced at full scale.
All other hardware models are effectively in High Power mode at all times.
Figure 11.25: High Power Button