Version:

Estimates the Elliptic filter order.

## filter type

The type of filter that this node creates.

 Lowpass Creates a lowpass filter. Highpass Creates a highpass filter. Bandpass Creates a bandpass filter. Bandstop Creates a bandstop filter.

Default: Lowpass

## sampling frequency

The sampling frequency in Hz.

This value must be greater than zero.

Default: 1.0 Hz, which is the normalized sampling frequency

## frequency specifications

Band edge frequencies of the filter, in Hz.

### lower pass frequency

First passband edge frequency in hertz.

### lower stop frequency

First stopband edge frequency in Hz.

### higher pass frequency

Second passband edge frequency in Hz. The node ignores this input for lowpass and highpass filters.

### higher stop frequency

Second stopband edge frequency, in Hz. The node ignores this input for lowpass and highpass filters.

## ripple specifications

Ripple level in the passband and stopband of the filter.

### passband

Ripple level in the passband.

Default: 0.1

### stopband

Ripple level in the stopband.

Default: 60

### decibel or linear?

A Boolean value that specifies whether this node applies a decibel scale or a linear scale to the ripple levels.

 TRUE The node applies a decibel scale to the ripple level. FALSE The node applies a linear scale to the ripple level.

Default: TRUE

## error in

Error conditions that occur before this node runs. The node responds to this input according to standard error behavior.

Default: no error

## estimated order

Minimum order value that the filter requires to meet the specifications you set.

## high cutoff frequency

High cutoff frequency. The cutoff frequency corresponds to the edge frequency of the passband.

## low cutoff frequency

Low cutoff frequency. The cutoff frequency corresponds to the edge frequency of the passband.

## error out

Error information. The node produces this output according to standard error behavior.

## ripples

Passband ripple and stopband attenuation of the filter in decibels.

### passband ripple

Ripple level in the passband in decibels.

### stopband attenuation

Stopband attenuation in decibels.