audio/*
audio/aac
File extensions: .aac
Advanced Audio Coding — the successor to MP3.
What is audio/aac?
audio/aac identifies AAC audio streams. AAC compresses better than MP3 at similar quality and is the default audio codec inside MP4 videos and Apple Music.
Typical usage
Music streaming, video soundtracks, mobile audio.
HTTP header example
Response header
Content-Type: audio/aacFrequently asked questions
What is the audio/aac MIME type?
audio/aac identifies AAC audio streams. AAC compresses better than MP3 at similar quality and is the default audio codec inside MP4 videos and Apple Music.
What file extension does audio/aac use?
Files served as audio/aac typically use the extension .aac. The most common is .aac.
How do I set the Content-Type for audio/aac?
Send the HTTP response header Content-Type: audio/aac. Music streaming, video soundtracks, mobile audio.
Is audio/aac an official MIME type?
Yes. audio/aac is officially registered with IANA, so standards-conformant clients recognize it.