What is AAC?

AAC (Advanced Audio Coding) is a compressed audio format similar to MP3. AAC is used as the audio track in live streams and multimedia files that are recorded to an MP4 container for files that use .mp4, .f4v, .mov, .m4v, .mp4a, .3gp, and .3g2 filename extensions. Compared to MP3 files, AAC audio generally delivers better quality at the same bitrate and has wider support among playback clients supported by Wowza Streaming Engine™ software.

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