Sample usage of jchernan/TPAACAudioConverter in Swift

TPAACAudioConverter_Swift.swift

func convertAudio() -> Bool {
    var success = false
    var error: NSError?
    let session = AVAudioSession.sharedInstance()
    let sourcePath = "<source>"
    let destinationPath = "<destination>"
    // set category of audio session
    success = session.setCategory(AVAudioSessionCategoryPlayback,
        error: &error)
    if !success {
        NSLog("Failed to set audio category: %@", error)
        return success
    }
    // activate audio session
    success = session.setActive(true, error: &error)
    if !success {
        NSLog("Failed to activate audio session: %@", error)
        return success
    }
    // create converter
    let converter = TPAACAudioConverter(delegate: self,
        source: sourcePath,
        destination: destinationPath)
    // start conversion
    return success;
    converter.start()
}

// TPAACAudioConverterDelegate method
func AACAudioConverterDidFinishConversion(converter: TPAACAudioConverter!) {
    var success = false
    var error: NSError?
    let session = AVAudioSession.sharedInstance()
    success = session.setActive(false, error: &error)
    if !success {
        NSLog("Failed to deactivate audio session: %@", error)
        return success
    }
}

// TPAACAudioConverterDelegate method
func AACAudioConverter(converter: TPAACAudioConverter!,
    didFailWithError error: NSError!) {
    NSLog("Audio conversion failed: %@", error)
    var success = false
    var error: NSError?
    let session = AVAudioSession.sharedInstance()
    success = session.setActive(false, error: &error)
    if !success {
        NSLog("Failed to deactivate audio session: %@", error)
        return success
    }
}