Stands for Advanced Audio Coding is a standard compressed audio file format.AAC generally have the sound quality better than the popular mp3 format in the same bitrate bitrate especially above 100 kbit / s.AAC a format that is commonly used when making an audio CD compression at the Apple iPod and iTunes (extension. M4a).This format is a standard part of the Motion Picture Experts Group (MPEG). Sample rate offered up to 96 KHz or twice a MP4 which is only 44 KHz.
