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AAC was originally created as a successor to MP3 with improved audio coding quality. Also AAC is a multi-channel audio coding algorithm that supports streaming. To date, the AAC format has not yet reached mass distribution on audio media, but in a number of parameters it surpasses all types of audio compression existing today. This means you can have files that take up less space but still have the same audio quality as other popular compressed audio formats. The format itself is proprietary and requires the purchase of a license for commercial use. AAC is the preferred audio file format for iTunes and Apple Music, but ACC files can be played on Android and Windows computers. Files encoded with AAC can have the extensions .m4a and .mp4. These formats act as containers for packaging audio streams.
An OGG file is a compressed audio file that uses the free, proprietary Ogg Vorbis audio compression. Many connoisseurs of modern audio formats consider the Ogg format to be one of the most promising and, in particular, a worthy competitor to popular formats. Basically, it is a multimedia container format standard that is run by the non-profit organization Xiph.Org. Ogg Vorbis has the most modern and high quality psychoacoustic model, which is why the bitrate / quality ratio is significantly better than that of competitors. The OGG format has the main advantage - with the same bitrate, this format gives a higher quality in comparison with other formats. This 320 kbps bitrate format is used in Spotify broadcasts. In addition to the open source code, it should be noted that OGG is multiplatform. The encoder is compatible with almost all available operating systems.