iOS 配音状态

iOS 配音状态

swift
import AVFoundation
func playAudio() {
    guard let audioPath = Bundle.main.path(forResource: "audio", ofType: "mp3") else {
        return
    }
    
    let url = URL(fileURLWithPath: audioPath)
    
    do {
        let audioPlayer = try AVAudioPlayer(contentsOf: url)
        audioPlayer.play()
    } catch {
        print("Failed to play audio")
    }
}

swift
import AVFoundation
var audioRecorder: AVAudioRecorder?
func startRecording() {
    guard let audioPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true).first else {
        return
    }
    
    let audioFilename = audioPath.appendingPathComponent("recording.wav")
    let url = URL(fileURLWithPath: audioFilename)
    
    let settings = [
        AVFormatIDKey: Int(kAudioFormatLinearPCM),
        AVSampleRateKey: 44100.0,
        AVNumberOfChannelsKey: 2,
        AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
    ] as [String : Any]
    
    do {
        audioRecorder = try AVAudioRecorder(url: url, settings: settings)
        audioRecorder?.record()
    } catch {
        print("Failed to start recording")
    }
}
func stopRecording() {
    audioRecorder?.stop()
    audioRecorder = nil
}

swift
import AVFoundation
func mixAudio() {
    let audioEngine = AVAudioEngine()
    
    guard let audioPath1 = Bundle.main.path(forResource: "audio1", ofType: "mp3"),
          let audioPath2 = Bundle.main.path(forResource: "audio2", ofType: "mp3") else {
        return
    }
    
    let url1 = URL(fileURLWithPath: audioPath1)
    let url2 = URL(fileURLWithPath: audioPath2)
    
    do {
        let audioFile1 = try AVAudioFile(forReading: url1)
        let audioFile2 = try AVAudioFile(forReading: url2)
        
        let audioPlayerNode1 = AVAudioPlayerNode()
        let audioPlayerNode2 = AVAudioPlayerNode()
        
        audioEngine.attach(audioPlayerNode1)
        audioEngine.attach(audioPlayerNode2)
        
        audioEngine.connect(audioPlayerNode1, to: audioEngine.mainMixerNode, format: audioFile1.processingFormat)
        audioEngine.connect(audioPlayerNode2, to: audioEngine.mainMixerNode, format: audioFile2.processingFormat)
        
        audioPlayerNode1.scheduleFile(audioFile1, at: nil, completionHandler: nil)
        audioPlayerNode2.scheduleFile(audioFile2, at: nil, completionHandler: nil)
        
        try audioEngine.start()
        
        audioPlayerNode1.play()
        audioPlayerNode2.play()
    } catch {
        print("Failed to mix audio")
    }
}