ALLEN & HEATH ZED R16 Firewire User Manual page 31

The WDM tab (Windows only) can be used for enabling or disabling the Windows Driver Model audio channels, configuring
them as mono, stereo or surround, depending on your computer's capability, and mapping the WDM channels to the required
channels on your ZED-R16. For example you can map the stereo WDM channels to the master L-R channels (17-18) on your
mixer so that your computer CD player and general audio will be played to the Master L-R channels for monitoring.
Drag the speaker channels
from here....
The DPC tab (Windows only) allows a utility to check your computer for excessive Deferred Procedure Call latencies. Basi-
cally it checks the capability of your computer to handle real time audio streams by looking at how quickly your computer can
get around to processing the audio data streamed into the buffers and if there are any hold-ups caused by other drivers or
processor interrupts. The result of a high DPC latency measurement (this is not the overall FireWire latency), would be clicks
in the audio or dropouts in communication with the computer or audio application.
Once enabled, the checker will continue to measure if another tab is selected, or the control panel is minimised and the peak
measurement is displayed in the box below the bargraph.
The measurement may be affected by other applications running on the computer, especially if they use a lot of processor
power.
If high latency measurements are reported, the recommended operation mode may be one of the safe modes to prevent drop-
outs, at the expense of FireWire bus latency timings.
The Info tab displays the Driver version number of the driver and the PAL number of the version compiled for the application.
Allen & Heath
ZED DICE CONTROL PANEL
31
....To here.
ZED-R16 User Guide