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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,86 @@ | ||
| // | ||
| // Conductor.swift | ||
| // DSP Playground | ||
| // | ||
| // Created by Alireza Hajebrahimi on 2021/07/26. | ||
| // | ||
|
|
||
| import AudioKit | ||
| import AudioKitUI | ||
| import AudioKitEX | ||
| import AVFoundation | ||
| import SoundpipeAudioKit | ||
| import SwiftUI | ||
|
|
||
|
|
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| struct ConductorData { | ||
| var isPlaying = false | ||
| var isPaused = false | ||
| var volume: AUValue = 1 | ||
| var balance: AUValue = 0.5 | ||
| var gain: AUValue = 10.0 | ||
| } | ||
|
|
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| class Conductor: ObservableObject, ProcessesPlayerInput { | ||
|
|
||
| var engine = AudioEngine() | ||
| var player = AudioPlayer() | ||
| var buffer: AVAudioPCMBuffer? | ||
| var filter: Fader? | ||
| var dryWetMixer: DryWetMixer? | ||
|
|
||
| @Published var data = ConductorData() { | ||
| didSet { | ||
| data.isPlaying ? player.play() : player.stop() | ||
| data.isPaused = player.isPaused | ||
| player.volume = data.volume | ||
| filter!.gain = data.gain | ||
| dryWetMixer!.balance = data.balance | ||
| } | ||
| } | ||
|
|
||
| var audioFileURL: String? | ||
|
|
||
|
|
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| func initFrom(audioFile: String) { | ||
| audioFileURL = audioFile | ||
| buffer = Cookbook().sourceBuffer(url: audioFileURL!) | ||
| player.buffer = buffer | ||
| player.file = try! AVAudioFile(forReading: URL(string: audioFileURL!)!) | ||
| player.isLooping = true | ||
| self.filter = Fader(player) | ||
| self.dryWetMixer = DryWetMixer(player, filter!) | ||
| engine.output = dryWetMixer | ||
| } | ||
|
|
||
| func start() { | ||
| do { | ||
| try engine.start() | ||
| } catch let err { | ||
| Log(err) | ||
| } | ||
| } | ||
|
|
||
| func selectFile() { | ||
| let panel = NSOpenPanel() | ||
| panel.allowsMultipleSelection = false | ||
| panel.canChooseDirectories = false | ||
| panel.title = "Select an audio file" | ||
| panel.allowedFileTypes = ["mp3", "aac", "wav", "flac", "alac", "dsd"] | ||
| if panel.runModal() == .OK { | ||
| self.audioFileURL = panel.url!.absoluteString | ||
| } | ||
| } | ||
|
|
||
| func play() { | ||
| player.play() | ||
| } | ||
|
|
||
| func pause() { | ||
| player.pause() | ||
| } | ||
|
|
||
| func stop() { | ||
| engine.stop() | ||
| } | ||
| } |
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