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M4A is an audio format resembling .MP4, but containing only audio data and being based on lossless compression that will maintain the sound quality no matter how compressed the file is.
In order to be able to adjust the contents of M4A files, users can resort to MP4 editors since they are both created on the same basis.
M4A editors will offer users the possibility to split files to several segments, according to pre-defined parameters.
Furthermore, users will also be able to adjust the audio channel, bit rate and sample rate of M4A files, while also having the chance to convert the tracks to other multimedia formats.