M4V to AIFF Converter

M4V to AIFF — Extract the Audio to an Apple Editing Format

M4V is Apple's MPEG-4 video container, used since 2006 for iTunes Store movies and TV; its soundtrack is almost always AAC, a lossy codec. This tool pulls that audio track out and writes it to AIFF — Apple's uncompressed PCM format — so the video is discarded and you keep an edit-ready file for Logic Pro, GarageBand, or Pro Tools. If you only want a small file to listen to or share, extract to a compressed format instead; the comparison below shows when each makes sense.

M4V Audio vs AIFF Output at a Glance

When to Extract to AIFF

• You are editing on a Mac in Logic Pro, GarageBand, or Final Cut and want the format those apps treat as native.
• Your project pipeline expects uncompressed PCM so every later edit, fade, and bounce stays in the editing domain rather than re-decoding lossy audio each time.
• You need AIFF's richer native metadata tagging (name, author, annotations) over WAV's barer header.
• You are working on Apple hardware where AIFF is the default uncompressed choice and .aif/.aiff open without a prompt.

When to Extract to Something Else

• You want a small file to email, post, or load onto a phone — uncompressed PCM runs about 10 MB per minute, so reach for M4V to MP3 instead.
• You edit on Windows or in Pro Tools/Audacity, where the byte-identical M4V to WAV is the more universal uncompressed default.
• You want to archive the audio losslessly at roughly half the size — a compressed-lossless format like FLAC keeps the bits but shrinks the file.

How to Convert M4V to AIFF

1. Upload Your M4V File: Drag and drop your .m4v onto the page, or click "+ Add Files" to browse. Queue several clips and they convert in one batch with the same settings.
2. Set the Audio Sample Rate: Open Advanced Options and leave Audio Sample Rate on "Original" for a faithful 1:1 transfer of the source audio, or pick a rate (such as 44.1 kHz) only if your target device or sampler requires one.
3. Set the Audio Channel or Trim (Optional): Leave Audio Channel on "Original" to keep the source layout, or force Mono/Stereo. Set Trim (default "Unchanged") to export only a start-and-duration window — useful because uncompressed AIFF grows fast.
4. Convert and Download: Click "Convert" and download your AIFF file. No sign-up, no watermark.

Frequently Asked Questions

Can I convert an iTunes movie purchase from M4V to AIFF?

Only if the M4V is not copy-protected. Movies and TV bought or rented from the iTunes Store are locked with Apple's FairPlay DRM and play only on devices signed in to the purchasing Apple ID, so converters — this one, VLC, and HandBrake alike — cannot read the audio out of them. DRM-free M4V files, such as your own exports or unprotected downloads, extract normally.

Does converting M4V audio to AIFF improve the sound quality?

No. M4V soundtracks are almost always AAC, which is lossy — some detail was permanently discarded when the file was first encoded. Decoding that to uncompressed PCM and wrapping it in AIFF stores the exact samples your player already produces; it cannot rebuild what was removed. You get a much larger file that sounds identical to the source. The point of AIFF here is an edit-ready uncompressed format, not added fidelity.

Why is my AIFF so much larger than the M4V it came from?

Because AIFF is uncompressed. AAC inside an M4V shrinks audio by roughly an order of magnitude versus raw PCM, while AIFF writes every sample out in full at 16-bit. CD-quality stereo PCM runs about 10 MB per minute (44.1 kHz × 16-bit × 2 channels ≈ 1,411 kbit/s), so a compact compressed soundtrack commonly expands several-fold. The extra bytes are uncompressed data, not added detail — trim to the part you need to keep the file manageable.

What happens to the video track in my M4V 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 to isolate a specific passage of the extracted sound, run the audio cutter on the AIFF afterward.

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

By default the output is 16-bit big-endian PCM (the AIFF standard since Apple published it in 1988) and preserves the source sample rate — commonly 44.1 or 48 kHz — when Audio Sample Rate is left on "Original." In our testing, a one-minute 48 kHz stereo M4V 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.

Is .aif the same as .aiff?

Yes — the bytes inside are identical. Apple specified the format as AIFF in January 1988, but DOS-era and cross-platform tools were limited to three-letter extensions, so .aif became the common spelling for the very same file. macOS, Logic Pro, and GarageBand read both interchangeably. If you specifically need the three-letter extension, the M4V to AIF page does this exact conversion.

How are my files handled, and how long do you keep them?

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