Digital audio is sound (usually music) which is recorded (or converted) and stored in a digitised format. Digital audio can be stored on a compact disc, Minidisc, Digital Audio Tape tape, or as a computer file e.g. WAV (Wave) or MP3 (or other compressed file formats).

In recent years, digital audio has come to more often refer to such computer-based files, initially of the MP3 format, that can only be played by computers, dedicated portable players, or disc players that are specially enabled, with the now-practical availability of music across the internet.