Audio format for iOS and Android

Question

Sorry if I am asking too generic question.

We are in the process of developing an application which records and plays audio on mobile devices. This application is be

Answer 1

Programatically this will help you and the file extension may mp3/mp4 for audio; both will support on media players. Android snippet:

myRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
myRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
myRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);

iOS snippet

AVFormatIDKey: @(kAudioFormatMPEG4AAC)