M4A (MPEG-4 Audio)

M4A ist ein Audiocontainer basierend auf MPEG-4, typischerweise mit AAC- oder ALAC-kodierten Audiodaten. Standardformat für iTunes und Apple Music.

MIME-Typ

audio/mp4

Typ

Binaer

Komprimierung

Verlustbehaftet

Vorteile

+ Better audio quality than MP3 at equivalent file sizes
+ Native support on Apple devices, iTunes, and most modern players
+ Supports both lossy (AAC) and lossless (ALAC) codecs
+ Rich metadata with album art, chapters, and lyrics

Nachteile

− Less universal than MP3 for older devices and car stereos
− AAC encoding has licensing considerations
− Some Android and Linux players require codec installation

Wann Sie .M4A verwenden sollten

Verwenden Sie M4A für Musik im Apple-Ökosystem oder wenn bessere Audioqualität als MP3 gewünscht ist.

Technische Details

M4A-Dateien verwenden den ISOBMFF-Container mit AAC- oder ALAC-Audiostreams, Kapitelmarken und iTunes-Metadaten.

Geschichte

M4A wurde von Apple zusammen mit iTunes populär gemacht. Es verwendet den MPEG-4-Container (ISO 14496-14).

Von .M4A konvertieren

.m4a → .aac .m4a → .ac3 .m4a → .aiff .m4a → .alac .m4a → .amr .m4a → .ape .m4a → .flac .m4a → .mid .m4a → .midi .m4a → .mp3 .m4a → .ogg .m4a → .opus .m4a → .wav .m4a → .wma

In .M4A konvertieren

.aac → .m4a .ac3 → .m4a .aiff → .m4a .alac → .m4a .amr → .m4a .ape → .m4a .flac → .m4a .mid → .m4a .midi → .m4a .mp3 → .m4a .ogg → .m4a .opus → .m4a .wav → .m4a .wma → .m4a

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