MPEG-4 Audio (.m4a)
M4A, an acronym for MPEG-4 Audio, is a file extension used to represent audio files encoded with Advanced Audio Codecs (AAC or ALAC) as part of the MPEG-4 format. Introduced by Apple in 2001, M4A was designed to improve upon the MP3 format by offering superior audio quality and smaller file sizes. Widely used in digital music distribution, M4A files are known for their efficient compression and lossless audio options, making them a preferred choice for music enthusiasts and professionals in the tech industry.