Swift: how to wait for sound to be played?

Hey I have programmed a recorder app just like voice memos from apple. I also have the same sounds for starting and stopping the recording. The problem is that the sound at the start is on the recording. Is there a way to wait for the sound to be finished playing and only then start the recording?

Right now I have this:

@State var recorder: AVAudioRecorder!
@State var isRecording = false // boolean, true -> recorder is recording


let url = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let fileName = url.appendingPathComponent("myRcd.m4a") // set the location for the Audiofile
let settings = [
    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
    AVSampleRateKey: 44100,
    AVNumberOfChannelsKey: 1,
    AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
] // settings for the recording

self.recorder = try AVAudioRecorder(url: fileName, settings: settings)
AudioServicesPlaySystemSound(1113) // play the soundeffect
self.recorder.record() // start recording
self.isRecording.toggle() // change isRecording to true

Solution

For anyone with the same problem, this is how I solved it:

@State var recorder: AVAudioRecorder!
@State var isRecording = false // boolean, true -> recorder is recording


let url = FileManager.default.urls(for: .documentDirectory, in: .userDomainMask)[0]
let fileName = url.appendingPathComponent("myRcd.m4a") // set the location for the Audiofile
let settings = [
    AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
    AVSampleRateKey: 44100,
    AVNumberOfChannelsKey: 1,
    AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
] // settings for the recording


// ---------------------------------------------------- the part I changed
self.isRecording.toggle() // change isRecording to true
self.recorder = try AVAudioRecorder(url: fileName, settings: settings)
AudioServicesPlaySystemSoundWithCompletion(1113) { // play the sound and wait until it is finished
    self.recorder.record() // start recording when sound is played
}

Thanks to @burnsi