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dBpoweramp Codec Central: m4a (Apple Lossless & AAC)


Description

Successor to mp3, m4a was championed by iTunes, .m4a is used for audio, whilst .mp4 is for video. Internally m4a can store many sub-formats:
  • Apples Lossless (know also as ALAC or ALE) this format is like Zip for audio, no audio quality is lost, audio decompresses identical to the source.

  • Advanced Audio Compression (AAC), is a lossy compression like mp3, audio quality is sacrificed to gain smaller file sizes. There are many types of AAC: LC (low complexity), HE (high efficiency), m4p (Apples encrypted).
Currently audio purchased from Apple's iTunes Music Store is lossy AAC.


Decoder

dBpoweramp comes with a m4a decoder as standard, able to decode Apple Lossless and every AAC type (excluding iTunes m4p protected).


Apple Lossless Encoder

Included as standard in dBpoweramp.


AAC Encoder

Download m4a AAC Encoder


m4a AAC Encoder (FDK) Release 2.1    1.9MB       32 & 64 bit codecs included

Encodes .m4a (AAC: LC, HE & HE v2) and m4b.




Download AAC ADTS Encoder most people should use the m4a AAC Encoder above


AAC Encoder (FDK) Release 2.1    1.9MB       32 & 64 bit codecs included

Encodes .aac (no ID Tagging)