What is an AMB File?
An AMB audio file contains spherical surround sound information. Instead of just the horizontal plane, it also includes sound sources below and above the user. The transmission channels of this format do not carry speaker signals, as opposed to several other multichannel surround formats. Instead, they include a B-format representation of a sound field, which is decoded to the listener’s speaker configuration.
Even though an AMB file has significant superiority over many other high-quality audio file formats, it did not quite catch on except for a niche audience.
Download AMB Sample Files
You can download .AMB sample files from below to test out your surround sound setup and figure out any kinks.