Это работает:
let recordingName = "audio.m4a"
let dirPath = getDirectory()
let pathArray = [dirPath, recordingName]
guard let filePath = URL(string: pathArray.joined(separator: "/")) else { return }
let settings = [AVFormatIDKey: Int(kAudioFormatMPEG4AAC),
AVSampleRateKey:12000,
AVNumberOfChannelsKey:1,
AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue
]
//start recording
do {
audioRecorder = try AVAudioRecorder(url: filePath, settings: settings)
audioRecorder.delegate = self
audioRecorder.record()
} catch {
print("Recording Failed")
}
func getDirectory()-> String {
let dirPath = NSSearchPathForDirectoriesInDomains(.documentDirectory, .userDomainMask, true)[0]
return dirPath
}
Не забудьте добавить NSMicrophoneUsageDescription
в ваш телефон вспомогательное приложение Info.plist
.