Input And Output With Fir - Phonic i4800 User Manual

7.7 Input and output with FIR

Double- click in the function button
corner can zoom the interface.
Setting area:
 IMPORT: import FIR preset file to current channel.
 EXPORT: export FIR preset file of current channel.
 BYPASS: EQ is straight after bypass available, red for open, turn off manually when using FIR.
 STORE: store FIR parameters in the device.
 Taps: current Taps quantity
 Ms: current delay
 Name: current name of FIR preset file
Channels select: click and show current channel with FIR curve, support multiple channels.
Parameters select:
 Design: design switch button for interface.
 Magnitude: show magnitude curve.
 Phase: show phase curve.
 72dB: show content accuracy within 72dB amplitude.
 144dB: show content accuracy within 144dB amplitude.
Curve area:
 - 108 +36: amplitude accuracy, the value used for reference when the current display is an amplitude curve.
 - 180° +180°: phase accuracy, the value used for reference when the current display is a phase curve.
 20Hz 20kHz: bands.
Design area:

 Freq(HZ): start frequency setting, high pass on the left, low pass on the right.
, and the following figure 7.6 FIR function page will pop up. Upper right
Figure 7.6 FIR setting module
: high pass, frequency band, low pass, flat.
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