This is an audio file extension that allows for achieving surround sound. It is utilized in files of the DVD format. Its manufacturing company is Dolby Digital. An AC3 file is an audio stream that can be encountered as external soundtracks for films. You can download it separately and synchronize it with the movie file. The audio file contains 6 channels: upper and lower, front and rear, right and left, as well as low-frequency effects.

oga

The open standard of the multimedia container format

This is a free container audio file. This format allows you to store compressed audio information. Files of this format can be played by any media player that supports OGG, such as Windows and Unix players. It can utilize one of several encoding schemes. The format was developed by Xiph.Org. Its full name is Ogg VorbisAudio.