Pitch Reference Frequency Structure Reference

Frequency

public struct Frequency : NewType, SignedNumeric

Periodic vibration in Hertz.

Example Usage

let nice = Frequency(440.0) // => "a 440"
let mean: Frequency = 440.0 // => "a 440"

Instance Properties

value
The value of this Frequency in Hz (i.e., cycles per second).
Declaration
Swift

public let value: Double

Initializers

init(value:)
Creates a Frequency with the given value in Hz (i.e., cycles per second).
Declaration
Swift

public init(value: Double)

Conversion to Frequency

init(noteNumber:with:at:)
Creates a Frequency from the given noteNumber, using the given reference Frequency for the given reference NoteNumber.
Declaration
Swift

public init(noteNumber: NoteNumber, with freqRef: Frequency = <<empty>>, at nnRef: NoteNumber)
noteNumber(with:at:)
Declaration
Swift

public func noteNumber(with freqRef: Frequency = <<empty>>, at nnRef: NoteNumber = <<empty>>) -> NoteNumber
Return Value

A NoteNumber representation of this Frequency, using the given reference Frequency for the given reference NoteNumber.

Just Intonation

init(_:reference:)
Creates a Frequency with the given ratio and the given reference Frequency.
Declaration
Swift

public init(_ ratio: Fraction, reference: Frequency)