FIR menu commands

The FIR menu provides the following commands:

Undo	Un-does the last change to the filter.
Redo	Re-does the last change to the filter.
Sampling Frequency	Sets Fs, the sampling frequency of the filter.
Design Options	Sets design options, including quantization and constraints on the number of taps
Minimum dB	Sets the minimum dB value for plots.
Fill Filter With Constant	Fills the filter coefficients with a constant (to make a " comb" filter).
Fill Filter With Sine	Fills the filter coefficients with a sine.
Window Filter	Multiplies the filter coefficients by a data window.
Scale Filter	Scales the filter coefficients in order to change the filter gain.
Quantize Filter	Quantizes the filter coefficients to a fixed-point representation.
Mix Complex Filter	Mixes the Inphase and Quadrature filters with a complex sine to create a new complex filter.
Zero Stuff and Zero Pad	Inserts zeros between coefficients (" zero stuffing" ), or prepends/appends zeros to coefficients (" zero padding" ).
Convolve	Convolves the current filter with a filter in another (open) project.
Truncate	Truncates the filter's impulse response by removing end coefficients.
Select Polyphase Filter	Selects one of a filter's polyphase components.
Convert to Minimum Phase	Converts the filter to minimum phase (minimum delay).
Reverse	Reverses the filter's coefficients. For example, the first coefficient becomes the last.
Copy Inphase To Quadrature	Copies the Inphase filter to the Quadrature filter.
Copy Quadrature To Inphase	Copies the Quadrature filter to the Inphase filter.
Swap Inphase and Quadrature	Swaps coefficients of the Inphase and Quadrature filter.
Copy Filter Data to Clipboard	Copies the Inphase or Complex filter coefficients to the Windows clipboard, for pasting into other applications.

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