ALAC vs MP3
Ein detaillierter Vergleich von Apple Lossless Audio und MP3 Audio — Dateigröße, Qualität, Kompatibilität und welches je nach Workflow zu wählen ist.
Codec-Wahl beeinflusst Größe, Klangqualität und wo Dateien abspielen. ALAC vs MP3 nach Anwendungsfall aufgeschlüsselt.
Apple Lossless Audio
Audio FilesALAC (Apple Lossless Audio Codec) provides lossless compression for audio, similar to FLAC but native to Apple ecosystem.
Über ALAC-DateienMP3 Audio
Audio FilesMP3 is the most widely recognized audio format in the world. It uses lossy compression to dramatically reduce file sizes while maintaining good perceived audio quality, making it the standard for music distribution.
Über MP3-DateienVorteilsvergleich
ALAC Vorteile
- Lossless — bit-exact with the original PCM.
- 40-60% smaller than uncompressed WAV/AIFF.
- Native Apple ecosystem support (iTunes, Apple Music Lossless).
- Open-source since 2011 — supported in FFmpeg, VLC, Android.
MP3 Vorteile
- Universal support — every device, every player, every car stereo.
- Small file sizes with acceptable quality at 128–320 kbps.
- Completely royalty-free since April 2017.
- ID3 metadata tags support artist, album, cover art, lyrics, and more.
- Efficient decoding — runs on the most basic hardware.
Einschränkungen
ALAC Einschränkungen
- Non-Apple devices support ALAC but rarely make it the default.
- Slower encoding than FLAC on most reference implementations.
- Large files vs lossy alternatives (AAC).
- The .m4a extension is shared with lossy AAC, causing mislabeling.
MP3 Einschränkungen
- Lossy — re-encoding compounds quality loss.
- Outperformed by AAC, Opus, and OGG at equivalent bitrates.
- Pre-echo artifacts on sharp percussive sounds.
- No native support for multichannel audio (only stereo).
- Bitrate capped at 320 kbps.
Technische Spezifikationen
| Spezifikation | ALAC | MP3 |
|---|---|---|
| MIME type | audio/mp4 (inside .m4a) | audio/mpeg |
| Extensions | .m4a (common), .alac | — |
| Container | ISO Base Media File Format (like MP4) | — |
| Sample rates | Up to 384 kHz (hi-res); typical 44.1-192 kHz | 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz |
| License | Apache 2.0 (since 2011) | — |
| Compression | — | Lossy — perceptual coding based on psychoacoustic model |
| Bitrates | — | 32–320 kbps (CBR) or VBR |
| Channels | — | Mono or stereo only |
| Metadata | — | ID3v1, ID3v2 |
Typische Dateigrößen
ALAC
- 3-min song (CD quality) 20-30 MB
- Full album (CD, 10 tracks) 250-400 MB
- Hi-Res 24-bit/96 kHz song 80-120 MB
MP3
- Song at 128 kbps (4 min) 3.8 MB
- Song at 320 kbps (4 min) 9.5 MB
- Podcast (1 hour, 96 kbps) 42 MB
- Audiobook (8 hours, 64 kbps) 220 MB
Bereit zum Umwandeln?
Wandle zwischen ALAC und MP3 online um, kostenlos und ohne Installation. Verschlüsselter Upload, automatische Löschung in 60 Minuten.
Häufig gestellte Fragen
ALAC (Apple Lossless Audio) is an audio file format used to store sound recordings — music, voice, podcasts, sound effects. The format defines how the audio samples are compressed (or stored raw), what bitrates are supported, and how metadata such as title, artist, album, and cover art is embedded. It is part of the audio files family.
ALAC (Apple sem perdas Audio) is an audio formatoo de arquivo used to store sound recordings — music, voice, podcasts, sound effects. The formato defines how the audio samples are comprimido (or stored raw), what bitrates are suportado, e how metadata como title, artist, album, e cover art is embedded. It is part of the audio arquivos family.
VLC, foobar2000, and the default media players on Windows and macOS handle ALAC natively. On mobile, iOS Music and Android media apps vary in their support — popular formats work everywhere; niche ones may need a dedicated app. If playback fails on a device, converting to MP3 or AAC usually solves it.
VLC, foobar2000, e the default media players no Windows e macOS handle ALAC natively. On mobile, iOS Music e Android media apps vary in their support — popular formatoos funcionar everywhere; niche ones may need a dedicated app. If playback fails em um device, convertendo to MP3 ou AAC Geralmente solves it.
Upload the ALAC to KaijuConverter and pick MP3, WAV, FLAC, AAC, OGG, or any other target. Our FFmpeg pipeline decodes the audio and re-encodes to the target format at sensible default bitrates (VBR ~190 kbps for music, 96 kbps for speech). Metadata and cover art travel with the audio where both formats support them.
ALAC can be lossy or lossless depending on the specific variant. Lossy variants (smaller files) discard some audio detail during compression in ways tuned to be inaudible; lossless variants preserve every sample exactly but produce larger files. For distribution, lossy at high bitrate is standard; for archival, lossless wins.