Convert 3GPP Multimedia (.3gpp) to Apple Lossless Audio Codec (.alac) online for free. Fast, secure video conversion with no watermarks or registration.
Conversion settings — add a file to adjust
Upload your .3gpp file by dragging it into the upload area or clicking to browse.
Choose your output settings. The default settings work great for most files.
Click Convert and download your .m4a file when it's ready.
ALAC (Apple Lossless Audio Codec) compresses audio without discarding any data, achieving roughly 50% file size reduction compared to uncompressed PCM. As Apple's native lossless format, ALAC integrates flawlessly with iTunes, Apple Music, iPhone, iPad, and Mac. Converting a 3GPP mobile video to ALAC extracts the audio into an Apple-optimized lossless container that supports full metadata tagging.
For Apple users building a lossless audio library, ALAC is the natural choice. It stores decoded audio from 3GPP files without any quality loss while maintaining half the file size of WAV or AIFF. Every Apple device hardware-decodes ALAC efficiently, ensuring smooth playback with minimal battery impact.
ALAC in an M4A container supports rich metadata — album art, chapter markers, lyrics, sort fields, and gapless playback flags. This makes it possible to organize extracted phone audio alongside your regular music library in Apple Music with proper tagging and browsing.
FFmpeg decodes the audio stream from the 3GPP file, then encodes it with the ALAC codec and wraps it in an M4A (MPEG-4 audio) container. ALAC uses adaptive linear prediction to compress the audio losslessly. The encoder automatically selects optimal parameters based on the input characteristics.
ALAC is mathematically lossless — decoding produces a bit-exact copy of the PCM input. The quality of the output is therefore identical to whatever the 3GPP source provides after decoding. For AMR sources at 8 kHz, the lossless property of ALAC is somewhat academic since the source is already heavily compressed and narrowband.
| Device | 3GPP | ALAC |
|---|---|---|
| Windows PC | Partial | Partial |
| macOS | Partial | Native |
| iPhone/iPad | Partial | Native |
| Android | Partial | Partial |
| Linux | Partial | Partial |
| Web Browser | No |
Resolution: 1920x1080
Bitrate: 8-12 Mbps
H.264 recommended for fast processing
Resolution: 1080x1080
Bitrate: 3.5 Mbps
Square or 9:16 for Reels
Resolution: 1080x1920
Bitrate: 4 Mbps
9:16 vertical, under 60s ideal
Resolution: 1280x720
Bitrate: 5 Mbps
Under 140s, 512MB max
Resolution: 960x540
Bitrate: 2 Mbps
16MB limit for standard, 64MB for document
Resolution: 1280x720
Bitrate: 4 Mbps
3GPP to ALAC is optimal for Apple-ecosystem users who want lossless audio with rich metadata from legacy GSM phone recordings. The space savings over WAV/AIFF make it practical for archiving large collections.
Безопасная передача
Загрузки зашифрованы по HTTPS
Конфиденциальность прежде всего
Файлы автоматически удаляются после обработки
Без регистрации
Начните конвертировать мгновенно
Работает везде
| No |
8MB free, 50MB Nitro
Любой браузер, любое устройство
| Характеристика | 3GPP | ALAC |
|---|---|---|
| Полное название | 3GPP Multimedia File | Apple Lossless Audio Codec |
| Расширение | .3gpp | .m4a |
| Лучше всего подходит для | Mobile standard | Lossless |