Ios 我想在swift中识别来自SFSpeechRecognizer的单词

所以基本上我想在我的应用程序中使用语音到文本，用户可以通过调用他们的答案号码来选择一个选项，例如：12，35等等，他们有多个答案，一切都很好，除了它会合并这些号码，例如 如果用户通过语音选择答案编号30，则该答案将正常工作（将选择编号30），但当用户可以更改编号20的答案时，结果将为3020，且无法识别其操作

这是我的密码

  func startSpeechRecognization(){
   
   
          let node = audioEngine.inputNode
          let recordingFormat = node.outputFormat(forBus: 0)
          
          node.installTap(onBus: 0, bufferSize: 1024, format: recordingFormat) { (buffer, _) 
          in
              self.request.append(buffer)
          }
          
          audioEngine.prepare()
          do {
              try audioEngine.start()
          } catch let error {
            //  alertView(message: "Error comes here for starting the audio listner =\(error.localizedDescription)")
          }
          
          guard let myRecognization = SFSpeechRecognizer() else {
             // self.alertView(message: "Recognization is not allow on your local")
              return
          }
          
          if !myRecognization.isAvailable {
             // self.alertView(message: "Recognization is free right now, Please try again after some time.")
          }
          
    self.task = speechReconizer?.recognitionTask(with: request, resultHandler: { (response, error) in
              guard let response = response else {
                var isFinal = false
                
                  if error != nil {
  //                    self.alertView(message: error.debugDescription)
                  }else {
  //                    self.alertView(message: "Problem in giving the response")
                  }
                  return
              }
               self.texting = ""
            let message = response.bestTranscription.formattedString
       
             self.texting = message
            print(self.texting)
            self.table.reloadData()

              
          })
  }

语音对文本的第一、第二和第三个结果：