Digital audio refers to sound that is recorded, stored, and played back in a digital format. Unlike analog audio, which uses continuous signals, digital audio converts sound waves into binary code (0s and 1s). This process allows for easier manipulation, storage, and transmission of audio files, making it a popular choice for music, podcasts, and other audio content. Common formats for digital audio include MP3, WAV, and AAC. Digital audio can be played on various devices, such as smartphones, computers, and digital audio players. The quality of digital audio can vary based on the bit rate and sample rate used during the recording process.