audio Format

M4A File Format

MPEG-4 Audio is an audio-only container format commonly housing AAC or ALAC compressed sound. It is Apple’s standard audio container for iTunes and Voice Memos.

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Technical Specifications

Extensions	.m4a
MIME Types	audio/mp4, audio/x-m4a
Category	Audio
Engine Tier	tier2-wasm
Magic Bytes / Sniffing	0x00 0x00 0x00
Opens With	Apple Music, QuickTime, VLC, Android media players
Good For	Apple ecosystem playback, voice memos, and audiobook chapters.
Not Recommended For	Older legacy car stereos expecting standard MP3 files.

Convert from M4A (2 targets)

M4AMP3(high)M4AWAV(exact)

Convert to M4A (4 sources)

MP3M4A(high)WAVM4A(high)FLACM4A(high)M4BM4A(exact)