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.

cdda

CD Digital Audio File

A standardized format intended for compact discs. It features an amplitude resolution of 16 bits and a sampling frequency of 44100 Hz. This format emerged back in 1980. It is utilized for storing data on personal computers and CDs. A CS Digital Audio File stores the audio data in the AIFF format. You can see such files if you extract the audio files from a compact disc. This operation can be performed using Apple iTunes.