Can an MP3 contain 5.1 or 7.1 Surround Sound Audio?
Matthew Harrington
I know that the MP3 file format essentially supports mono and stereo audio with a number of sample rates and bit rates, but can it contain true surround sound audio? Is there a way to pack more than 2 channels into an MP3?
2 Answers
No.
You could use MP3 surround (an extension of MP3, not part of the MP3 specification) if you really want to. It is backwards-compatible with MP3 (which, I assume, means that most MP3 players will simply play it back as a stereo MP3). You'll probably have to pay for an encoder or decoder, though.
1You won't be able to do this with MPEG-1 layer 3. You would need to use MPEG-2 part 3.
For real-world encoding, you'll probably want to use an AC3 or AAC 5.1 encoder. Audacity with the ffmpeg plugin can do this for you if you're just concerned about encoding audio.