OcaFilterPolynomial¶

A online version of the AES70 specification of this class can be found at http://docs.deuso.de.

The class is a subclass of OcaActuator().

This class defines the properties

Name	JavaScript Type	AES70 Type
A	number[]	OcaList<OcaFloat32>
B	number[]	OcaList<OcaFloat32>
SampleRate	number	OcaFrequency
MaxOrder	number	OcaUint8

Furthermore, it inherits the properties ClassID, ClassVersion, ObjectNumber, Lockable, Role, Enabled, Ports, Label, Owner, Latency, A, B, SampleRate and MaxOrder.

class OcaFilterPolynomial(objectNumber, device)¶

A generic Z-domain rational polynomial filter section: _A(0) + A(1)z + A(2)z^2 + A(3)z^3 + …_ B(0) + B(1)z + B(2)z^2 + B(3)z^3 + …

OcaFilterPolynomial.OnAChanged¶

type: PropertyEvent.<Array.<number>>

This event is emitted when the property A changes in the remote object. The property A is described in the AES70 standard as follows. Numerator - “A”

OcaFilterPolynomial.OnBChanged¶

type: PropertyEvent.<Array.<number>>

This event is emitted when the property B changes in the remote object. The property B is described in the AES70 standard as follows. Denominator - “B”

OcaFilterPolynomial.OnSampleRateChanged¶

type: PropertyEvent.<number>

This event is emitted when the property SampleRate changes in the remote object. The property SampleRate is described in the AES70 standard as follows. Sample rate inside the filter. We can’t assume it’s the same as the device input or output rate.

OcaFilterPolynomial.GetCoefficients()¶

Returns the polynomial coefficients used. The return values of this method are

A of type number[]
B of type number[]

Returns: Promise.<Arguments.<Array.<number>, Array.<number>>> –

OcaFilterPolynomial.GetMaxOrder()¶

Gets the maximum allowable order (= max number of array elements in numerator and for denominator arrays)

Returns: Promise.<number> – A promise which resolves to a single value of type number.

OcaFilterPolynomial.GetSampleRate()¶

Gets the filter sampling rate. The return values of this method are

Rate of type number
minRate of type number
maxRate of type number

Returns: Promise.<Arguments.<number, number, number>> –

OcaFilterPolynomial.SetCoefficients(A, B)¶

Sets the polynomial coefficients.

Arguments

A (Array.<number>) –
B (Array.<number>) –

Returns

Promise.<void> –

OcaFilterPolynomial.SetSampleRate(Rate)¶

Sets the filter sampling rate.

Arguments

Rate (number) –

Returns

Promise.<void> –