A voice recording IOS native application -- 2

I'm doing research at the university, and I want to record the voice of some participants using the microphone of the iPhone and upload the recorded data on the cloud account. Overview of the steps: 1- Collect information about the participant. 2- Give guidelines on the recording procedure. 3- Record the voice on the iPhone. 4- Check the quality of the recorded signal (signal to noise ratio) -- I will help you with the logic behind that. 5- Store the sound file and collected information on the phone, and upload them to a cloud.