Converting audio file in base64String in Swift 3.0

ios, swift

Solution

There's an error in your last code snippet where you try to convert the base64 encoded string back to raw data.

I haven't tried running the code with actual audio data, but this should at least fix your data conversion error:

if let encodedString = encodedString, let data = Data(base64Encoded: encodedString) {
    let player = try? AVAudioPlayer(data: data)
    player?.prepareToPlay()
    player?.play()
}

Problem

I am recording an audio file using following code. ``` let audioFilename = getDocumentsDirectory().appendingPathComponent("tt.mp4") let settings = [ AVFormatIDKey: Int(kAudioFormatMPEG4AAC), AVSampleRateKey: 12000, AVNumberOfChannelsKey: 1, AVEncoderAudioQualityKey: AVAudioQuality.high.rawValue ] do { audioRecorder = try AVAudioRecorder(url: audioFilename, settings: settings) audioRecorder.delegate = self audioRecorder.record() } catch { print(" startRecording fail ") } ``` Now when user stops the recording I want to save the audio file in a base64 string. I am trying with the following code: ``` let audioData = try? Data(contentsOf: (audioRecorder?.url)!) let encodedString = audioData?.base64EncodedString() print(" data \(encodedString)") //"AAAAGGZ0eXBtcDQyAAAAAG1wNDJpc29t" ``` Now I am trying to play the string: ``` let player = try? AVAudioPlayer(data:(encodedString?.data(using: String.Encoding.init(rawValue: 0)))!) player?.prepareToPlay() player?.play() ``` It's not playing. Where I am missing?

Original source