HEVC to AIFF Converter

HEVC to AIFF — or Should You Pick a Different Target?

If you are lifting the soundtrack out of an HEVC file, AIFF is one of four sensible destinations and it is not automatically the best one. The short version: choose AIFF when the audio is going into a Mac-based editor and will be processed further, choose WAV when the same is true on Windows, choose FLAC when you want the same fidelity at roughly half the size, and choose a lossy format when the file is only ever going to be listened to. This page lays the four side by side, then shows how to run the conversion.

The Four Targets Compared

Every option below preserves exactly what it is given — none of them can restore detail the video's own audio encoder already threw away. The differences are in size, compatibility, and how gracefully the file survives being edited and re-saved.

When AIFF Is the Right Choice

• The audio is headed into Logic Pro, GarageBand, Final Cut Pro, or Pro Tools, where AIFF is the format of least resistance and imports without transcoding.
• You are handing files to someone else on macOS and want zero ambiguity about whether their tools will open it.
• The audio will be cut, layered, and bounced repeatedly, so any lossy generation loss would compound.
• You want a plain, dependency-free file that will still open in twenty years — linear PCM in a documented chunk format is about as future-proof as audio gets.

When to Pick Something Else

• Storage matters. HEVC to FLAC is bit-for-bit identical to the PCM it compresses and typically lands at half the size. It is the better archive format unless a specific tool refuses it.
• You just want to listen. HEVC to MP3 produces something you can put on a phone. Extracting a 40-minute talk as AIFF gives you a 400 MB file for no audible benefit.
• The workflow is Windows-first. HEVC to WAV stores the identical samples in the container Windows audio tooling treats as native.
• You need proper tagging. AIFF's metadata support is thin; FLAC and the lossy formats carry artist, album, and artwork far more reliably.

How to Convert HEVC to AIFF

1. Upload Your HEVC File: Drag and drop the .hevc onto the page or click "Add Files". Batch uploads are supported and all files share one set of settings.
2. Pick an Audio Codec: PCM 16-bit Big Endian is the default and the classic AIFF sample format — keep it. The dropdown also offers PCM 16-bit Little Endian, PCM A-law, and PCM mu-law, which write AIFF-C variants instead.
3. Set Audio Channel, Audio Sample Rate, and Trim: Leave Audio Channel and Audio Sample Rate on Original to mirror the source; drop to Mono or a lower rate only to shrink the file. Leave Trim on Unchanged for the whole timeline or switch it to enter a Start time and Duration.
4. Convert and Download: Click Convert and save the .aiff. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours — no sign-up, no watermark, never shared or made public.

What the Audio Codec Dropdown Actually Changes

AIFF as Apple published it in 1988 stores big-endian linear PCM. The 1991 AIFF-C revision kept the same chunk layout but added a compression-type field, so a file can declare a different sample format. That is the real difference between the four entries here: only the default writes a plain AIFF file, and the other three write AIFF-C under the same .aiff name.

A-law and mu-law are the ITU-T G.711 telephony codings — built for voice circuits, audibly rough on music. Little-endian PCM saves byte-swapping for some tools but is the variant older AIFF readers are most likely to reject. Unless you know you need one of them, stay on the default.

Frequently Asked Questions

Why did my HEVC to AIFF conversion fail with no file?

Because a genuine .hevc file is a raw H.265 video elementary stream — ITU-T Recommendation H.265, first published in April 2013 — and it carries picture only. An audio-only target needs an audio stream to encode, so the job stops instead of writing a silent file. Not every .hevc is video-only, though: converters that target HEVC commonly write a Matroska container under that extension, and hand-renamed .mp4 files are common. Play yours in VLC first — if you hear sound, it will convert here; if it plays silently, upload the container the video was demuxed from instead.

Is AIFF actually better quality than WAV?

No. Both store the same linear PCM samples with the same bit depth and sample rate; the difference is byte order and chunk layout, not fidelity. A 16-bit 44.1 kHz stereo file is about 10.6 MB per minute either way, and converting between the two is a lossless operation. Pick by ecosystem: AIFF for Apple-centric audio tooling, WAV for Windows-centric tooling.

Will extracting to AIFF improve the audio from my video?

It cannot. The soundtrack inside a video container is almost always AAC or AC-3 — already lossy — and AIFF stores the decoded result exactly as it comes out of the decoder. That avoids adding a second lossy stage, which genuinely matters if the file is going to be edited and re-exported, but it does not rebuild anything the original encoder discarded.

Is .aif the same format as .aiff?

Yes — .aif is just the three-letter DOS-era spelling, and players treat the two identically. HEVC to AIF is the same conversion with the shorter extension on the file you download, and HEVC to AIFC is the AIFF-C variant of the same family.

How large will an AIFF from a long video be?

Work it out from the settings, since there is no compression to allow for: sample rate, times bytes per sample, times channels. The default 16-bit stereo at 44.1 kHz is 176,400 bytes per second — about 10.6 MB per minute, or 635 MB for an hour. Mono halves it, and so does choosing A-law or mu-law. For anything long, FLAC is the sensible archive target.

Does AIFF keep the title, artist, and artwork from the source file?

Not reliably. AIFF's metadata story is thin — a handful of optional text chunks that many tools ignore — and video containers store their metadata quite differently anyway. If tagging matters, extract to FLAC or MP3, both of which carry structured tags that every player reads.

Which sample rate and channel settings should I use?

Original for both, unless a downstream tool demands otherwise. Original keeps whatever the source recorded — typically 48000 Hz from a camera, 44100 Hz from a music source. Forcing a lower rate permanently removes the top of the frequency range, and forcing a higher one only adds bytes. Mono is worth choosing for single-voice speech, where it halves the file with no real loss.

Can I keep the video as well as the audio?

Not from this page — AIFF is audio-only, so the picture is discarded. HEVC to MP4 re-encodes the H.265 stream into the container with the broadest device support, and HEVC to MKV suits media servers that juggle several audio and subtitle tracks.

What happens to my file after the conversion?

It is uploaded over an encrypted connection, processed on our servers, and deleted automatically after a few hours. Nothing is shared or made public, there is no sign-up, and no watermark is applied. With long, high-bitrate sources the practical limit is upload time on your own connection rather than anything at the conversion end.