sexylin/harmonykit

Tool to generate harmony in audio frequencies in Swift.

HarmonyKit

Tool to generate audio frequencies.

Synopsis

let notes = HarmonyKit.tune(
    configuration: .init(
        temperament: .equal,
        pitch: 442,
        transpositionTone: .C,
        octaveRange: 1..<2
    )
)
notes.forEach { print($0) }

// =>
// tone: E, octave: 1, frequency: 41.390736
// tone: F, octave: 1, frequency: 43.851955
// tone: B♭, octave: 1, frequency: 58.53534
// tone: G♭, octave: 1, frequency: 46.459526
// tone: A♭, octave: 1, frequency: 52.149055
// tone: E♭, octave: 1, frequency: 39.06765
// tone: C, octave: 1, frequency: 32.851845
// tone: B, octave: 1, frequency: 62.016026
// tone: D, octave: 1, frequency: 36.87495
// tone: G, octave: 1, frequency: 49.222153
// tone: A, octave: 1, frequency: 55.25
// tone: D♭, octave: 1, frequency: 34.80532

You can also specify pure temperament:

let pureMajorNotes = HarmonyKit.tune(
    configuration: .init(
        temperament: .pure(.major, rootTone: .C),
        pitch: 442,
        transpositionTone: .C,
        octaveRange: 1..<2
    )
)

let pureMinorNotes = HarmonyKit.tune(
    configuration: .init(
        temperament: .pure(.minor, rootTone: .C),
        pitch: 442,
        transpositionTone: .C,
        octaveRange: 1..<2
    )
)

Installation

HarmonyKit is available through CocoaPods. To install it, simply add the following line to your Podfile:

pod "HarmonyKit"

Example

See Tests/HarmonyKitTests/HarmonyKitTests.swift.

Author

shingt

License

HarmonyKit is available under the MIT license. See the LICENSE file for more info.