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Free converter

MTS to M4A

Anyfile converts an AVCHD video to an M4A audio (sound only) for free, right in your browser: the file is never uploaded.

Files are converted in your browser and never uploaded. By using Anyfile you agree to the Terms of Use.

What changes from MTS to M4A

PictureLeft out: only the sound is saved
SoundAAC in an M4A file
File sizeUsually smaller: M4A compresses more tightly than MTS

When to use M4A: Music on Apple devices, iPhone voice memos and ringtone sources.

The two formats

.mts

AVCHD videoAdvanced Video Coding High Definition

The clip file AVCHD camcorders write, a format Sony and Panasonic introduced in 2006. It uses the same timestamped stream as M2TS, with H.264 video and Dolby Digital or PCM audio.

Footage from Sony, Panasonic and Canon camcorders recorded to memory cards.

Opens in VLC, Final Cut Pro, Premiere Pro, iMovie

About MTS files

.m4a

M4A audioMPEG-4 Audio

An MPEG-4 file that holds only audio, usually AAC and sometimes Apple Lossless (ALAC). Apple popularised it for songs bought and ripped in iTunes.

Music on Apple devices, iPhone voice memos and ringtone sources.

Opens in Music, QuickTime, iPhone, Windows Media Player, VLC

About M4A files

Questions

How do I convert MTS to M4A?

Drop your MTS file on this page, or choose it. Anyfile converts it on your device in a moment and the M4A downloads straight away. To change it first, open it in the video editor.

Is my MTS file uploaded anywhere?

No. The file is read and converted by your own browser, and nothing is sent to a server. You can check: open your browser’s developer tools, go to Network, and convert a file. No upload appears.

Will I lose quality?

M4A is a compressed format, and Anyfile saves at high quality, so the difference is very hard to notice.

Can I convert several MTS files at once?

Yes. Drop them together and you get one ZIP with every M4A inside.