Fir; Invert And Mute; Time Delay - miniDSP 2X4 HD User Manual

6.3.7 FIR

Each output channel has an FIR filter bank with a variable number of taps. Click on the FIR button to open the
FIR filter settings window:
FIR filtering is a powerful feature that allows very complex filters to be constructed (with the aid of suitable
design software). These filters can correct for amplitude only ("linear phase filters"), phase only, or a
combination or both. FIR filtering is described more in FIR filtering and design, starting on page 32.

6.3.8 Invert and mute

Each channel can be inverted in polarity, and individually muted. When either of these options is selected, the
visual indicator on the button is "lit":

6.3.9 Time delay

A delay of up to 80 ms can be applied to each output channel. To set the delay, click in the delay entry box for a
channel. The delay value can be entered numerically, and the up and down arrows can be used to change the
delay in small (0.02 ms) increments. The maximum time delay of 80 ms corresponds to a distance of
approximately 27.5 meters (about 90 feet).
The time delay corresponds to a distance. This distance is shown in centimeters below the entry box.
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miniDSP Ltd, Hong Kong / www.minidsp.com / Features and specifications subject to change without prior notice