Muunna MTS muotoon ALAC verkossa — ilmainen ja nopea | ConvertIntoMP4 | ConvertIntoMP4

Lue lisää muunnoksesta MTS–ALAC

Muunnosohjeet

Upload your .mts 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.

Tietoa muunnoksesta MTS–ALAC

AVCHD camcorders produce MTS files with either AC3 surround or LPCM stereo audio captured at 48 kHz. ALAC (Apple Lossless Audio Codec) compresses this audio by 40-60% without losing a single sample, wrapping it in an M4A container that integrates natively with iTunes, Apple Music, and every Apple device. Converting MTS to ALAC preserves camcorder audio in Apple's lossless ecosystem.

Miksi muuntaa MTS muotoon ALAC?

When building an Apple Music library of extracted camcorder audio — concert recordings, family event soundtracks, nature recordings — ALAC is the only lossless format that integrates seamlessly with iTunes metadata, AirPlay streaming, iCloud Music Library, and HomePod playback. FLAC offers comparable compression but requires third-party apps on iOS and is invisible to iTunes.

For videographers who need to archive project audio in a lossless format while maintaining easy access on Apple devices, ALAC provides the perfect balance. The M4A container supports chapters, artwork, and extensive metadata that make extracted audio self-documenting and easy to browse.

Yleisiä käyttötapauksia

Archiving concert and performance audio from AVCHD camcorder recordings on Apple devices
Building a lossless audio library of family event recordings in iTunes
Creating lossless audio backups from camcorder footage for AirPlay streaming
Preserving nature documentary soundtracks from camcorder recordings in Apple's ecosystem
Storing extracted interview audio with metadata in Apple Music for later reference

Näin se toimii

FFmpeg strips the video and encodes audio as ALAC in an M4A container: `-vn -c:a alac -ar 48000 -ac 2`. For 5.1 AC3 sources, downmix first: `-ac 2`. ALAC encoding is fast since it is a lightweight algorithm. The output M4A container supports chapter markers, cover art, and full iTunes metadata through FFmpeg's metadata mapping options.

Laatu ja suorituskyky

ALAC is mathematically lossless — the decoded output is sample-identical to the input. If the MTS has LPCM audio, the ALAC file is a perfect compressed copy. If the source is AC3, the ALAC preserves the decoded AC3 exactly, without additional loss. File sizes are roughly 60% of equivalent AIFF/WAV.

FFMPEG EngineModerateLossless

Laiteyhteensopivuus

Device	MTS	ALAC
Windows PC	Partial	Partial
macOS	Partial	Native
iPhone/iPad	Partial	Native
Android	Partial	Partial
Linux	Partial	Partial
Web Browser	No

Suositellut asetukset alustoittain

YouTube

Resolution: 1920x1080

Bitrate: 8-12 Mbps

H.264 recommended for fast processing

Instagram

Resolution: 1080x1080

Bitrate: 3.5 Mbps

Square or 9:16 for Reels

TikTok

Resolution: 1080x1920

Bitrate: 4 Mbps

9:16 vertical, under 60s ideal

Twitter/X

Resolution: 1280x720

Bitrate: 5 Mbps

Under 140s, 512MB max

Resolution: 960x540

Bitrate: 2 Mbps

16MB limit for standard, 64MB for document

Discord

Resolution: 1280x720

Bitrate: 4 Mbps

Vinkkejä parhaisiin tuloksiin

1Preserve the 48 kHz sample rate from the MTS source — do not downsample to 44.1 kHz
2Add recording date and event metadata during conversion for organized Apple Music library browsing
3For 5.1 AC3 sources, downmix to stereo unless you specifically need multichannel ALAC (which iTunes supports but few Apple devices output)
4Batch-convert entire camcorder card dumps at once — ALAC encoding is fast enough to process hours of audio quickly
5Use ALAC for your master archive, then convert to AAC for distribution — lossless master to lossy copy preserves the best possible quality chain

Aiheeseen liittyvät muunnokset

MTS to MP4 Converter MTS to AAC Converter MTS to AVI Converter MTS to FLAC Converter MTS to WAV Converter MP4 to ALAC Converter AAC to ALAC Converter AVI to ALAC Converter FLAC to ALAC Converter WAV to ALAC Converter ALAC to MP4 Converter

MTS to ALAC conversion is the optimal path for archiving camcorder audio in Apple's ecosystem, providing lossless compression with seamless iTunes and Apple device integration.

Usein kysytyt kysymykset

ALAC typically compresses to 40-60% of the original PCM size. A 34 MB/minute AIFF file becomes roughly 15-20 MB/minute in ALAC, with zero quality loss.

Yes. ALAC in M4A is the native format for AirPlay lossless streaming. The audio plays at full quality through HomePod, AirPort Express, and any AirPlay-compatible speakers.

Yes. The M4A container supports embedded cover art (typically a screenshot from the source video) plus full metadata including title, date, and comments.

Quality is identical. ALAC integrates with Apple's ecosystem (iTunes, Music app, iCloud). FLAC has better cross-platform support and slightly better compression. Choose based on your device ecosystem.

Yes. ALAC supports sample rates up to 384 kHz. The 48 kHz rate from AVCHD is preserved exactly without resampling.

Yes, ALAC is lossless in both directions. Decoding ALAC produces a WAV file that is bit-identical to what was originally encoded. This makes ALAC a safe archival format.

Aiheeseen liittyvät muunnokset ja työkalut

Muunna MTS myös muotoon

MTS to MP4→MTS to AAC→MTS to AVI→MTS to FLAC→MTS to WAV→MTS to WebM→

Muunna myös muotoon ALAC

MP4 to ALAC→AAC to ALAC→AVI to ALAC→

Convert MTS to ALAC — Free Online Converter