Not every app needs audio and video, but playing audio and video within an app can create an interesting way to deliver information to the user. For example, an app might want to play music or different sounds to alert the user or play a video to demonstrate steps for the user to follow. With both audio and video, an app can provide a more dynamic user experience.
When working with audio and video files, it’s important to identify the file format. Some popular audio formats supported by iOS include
.mp3 – Popular format that compresses audio files
.aac – Advanced Audio Coding ...
