filter

Documentation

Index

• Constants
• func SampleRates() []uint32
• type Filter
  • func Empty(sampleRate uint32) Filter
  • func FromCoefficients(coeffs []float64, sampleRate uint32, name string) Filter
• type ImpulseResponses
  • func Import(descriptorFilePath string) (ImpulseResponses, error)

Constants

const (
	CHANNEL_COUNT = 1
)

* Global constants.

Functions

func SampleRates

func SampleRates() []uint32

* Returns the supported sample rates.

Types

type Filter

type Filter interface {
	Add(other Filter) (Filter, error)
	Coefficients() []float64
	Multiply(scalar float64) Filter
	Normalize() Filter
	Process(inputBuffer []float64, outputBuffer []float64) error
	Reduce(order uint32) Filter
	SampleRate() uint32
}

* Interface type representing an FIR filter.

func Empty

func Empty(sampleRate uint32) Filter

* Create an empty filter, which does not pass any signal.

func FromCoefficients

func FromCoefficients(coeffs []float64, sampleRate uint32, name string) Filter

* Creates a filter from a list of coefficients.

type ImpulseResponses

type ImpulseResponses interface {
	CreateFilter(name string, sampleRate uint32) Filter
	Names() []string
}

* Interface type representing a collection of impulse responses.

func Import

func Import(descriptorFilePath string) (ImpulseResponses, error)

* Imports a set of impulse responses using a descriptor file.