MTS to AIFF Converter

Extract AIFF Audio from MTS Online

MTS files are AVCHD camcorder recordings (developed by Sony and Panasonic in 2006) that wrap an H.264 video track alongside Dolby AC-3 or linear PCM audio. This tool pulls the audio track out and writes it to an AIFF file — the uncompressed PCM container Apple introduced in 1988 — so the video is discarded and you keep only the sound, ready to drop into Logic Pro, GarageBand, or Pro Tools.

How to Convert MTS to AIFF

1. Upload Your MTS File: Drag and drop your .mts clip onto the page or click "+ Add Files" to browse. You can queue several clips and convert them with the same settings.
2. Set Audio Channel and Sample Rate: Open Advanced Options to keep the channel layout and Audio Sample Rate at "Original" for a faithful copy, or downmix to mono / resample if your DAW expects a specific rate.
3. Trim to the Part You Need (Optional): Use the Trim control to mark a start and end so a five-minute clip becomes the 20-second take you actually want — handy because uncompressed AIFF grows fast.
4. Convert and Download: Click "Convert" and save your AIFF file. No sign-up, no watermark.

AIFF vs WAV for Camcorder Audio

Both formats store the same uncompressed PCM samples, so they sound identical and take up the same space (~10 MB per minute of 44.1 kHz 16-bit stereo). The choice is about which ecosystem you edit in.

If you work outside the Apple ecosystem, the MTS to WAV converter produces the byte-for-byte PCM equivalent. To archive the same audio at roughly half the size with no quality loss, use the MTS to FLAC converter instead.

Frequently Asked Questions

Does converting AC-3 camcorder audio to AIFF improve the quality?

No. Most AVCHD camcorders record audio as Dolby AC-3, which is lossy. Wrapping it in AIFF stores those already-compressed samples in an uncompressed PCM container, so nothing is recovered — you get a much larger file with the same fidelity as the source. The conversion is genuinely lossless only when the original MTS used linear PCM audio, in which case the samples transfer into AIFF untouched.

Why is my AIFF file so much bigger than the MTS it came from?

AIFF is uncompressed, so it stores every sample at full size — about 10 MB per minute of CD-quality stereo regardless of how compact the source audio was. The MTS clip looks small partly because its audio was AC-3 or AAC compressed; expanding that to raw PCM is the trade you make for an edit-friendly file. Trim to the section you need to keep the output manageable.

Will the AIFF open in Logic Pro and GarageBand without any extra step?

Yes. AIFF is the native uncompressed format on macOS, so Logic Pro, GarageBand, and Final Cut Pro import it by drag-and-drop with no conversion prompt. That Apple-ecosystem fit, plus AIFF's richer metadata tagging, is the main reason to pick it over WAV when your project lives on a Mac.

What happens to the video track in my MTS file?

It is discarded. This tool demuxes the file and keeps only the audio stream, writing it to AIFF — there is no picture in the output. If you also need the video, convert the MTS to a video format separately, or use the audio cutter on the AIFF afterward to isolate a specific passage.

What sample rate and bit depth does the AIFF output use?

By default the output is 16-bit big-endian PCM and preserves the source sample rate (commonly 48 kHz on AVCHD camcorders) when Audio Sample Rate is left at "Original." In our testing, a one-minute 48 kHz stereo MTS clip extracted to an AIFF of roughly 11 MB, in line with the ~10 MB-per-minute figure for uncompressed PCM. You can resample to 44.1 kHz from the same panel if your project requires it.

How are my files handled, and how long are they kept?

Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion. There is no sign-up, no watermark, and your files are never shared or made public.