AC3 (Audio Coding 3) is a common audio format used for surround sound in movies, DVDs, and other media. Some of the common applications and devices that support AC3 formats for audio playback include:Media players: Popular media players like VLC Media Player, Windows Media Player, and Kodi (formerly XBMC) can handle AC3 audio playback.DVD and Blu-ray players: AC3 is often used for audio tracks in DVDs and Blu-ray discs. Most DVD and Blu-ray players are equipped to decode and play AC3 audio.Home theater systems: Surround sound systems, including home theater receivers and soundbars, are typically compatible with AC3 audio. They can decode and play AC3 audio for an immersive audio experience.Smart TVs: Many smart TVs support AC3 audio playback, allowing you to enjoy surround sound when watching movies or streaming content.Gaming consoles: Some gaming consoles, such as PlayStation and Xbox, are capable of playing AC3 audio. This enables gamers to experience immersive surround sound while playing games.Streaming devices: Devices like Amazon Fire TV, Roku, and Apple TV often support AC3 audio playback. This allows you to stream movies or shows with AC3 audio to your TV and enjoy surround sound.Mobile devices: Some smartphones and tablets are equipped with AC3 audio support. However, due to licensing issues, not all mobile devices natively support AC3 playback. In such cases, you may need to use third-party media player apps that can handle AC3 audio.It's worth noting that AC3 is a proprietary format developed by Dolby Laboratories. As a result, some applications and devices may require licensing or additional software to decode and play AC3 audio.