HEVC to AIFF Converter

HEVC to AIFF: Read This First

A bare .hevc file is a raw H.265 video bitstream — by design it carries picture only, with no audio track inside it. So if your goal is to pull a soundtrack out of a .hevc and save it as an AIFF (.aiff) audio file, there is usually nothing to pull: the result would be silent. The footage you actually want the sound from almost certainly lives in a container — an .mp4, .mkv, or .mov that wraps the H.265 video next to a separate audio track. This page explains the difference plainly, shows how the converter behaves on each kind of file, and points you to the tool that will actually produce the AIFF you want.

Raw .hevc Stream vs. the Container Your Audio Lives In

The whole question turns on which of these two things you uploaded. They look similar in a file list but are completely different inside.

When This HEVC to AIFF Tool Is the Right One

• Your file is secretly a container that was renamed with a .hevc extension — occasionally an .mp4 or .mov is saved or relabeled this way. If a real audio track is inside, the converter decodes it and writes AIFF normally.
• You have already confirmed (in a tool like MediaInfo or VLC) that your .hevc file does carry an audio track despite the extension.
• You specifically want to test what a given .hevc file produces, knowing a true elementary stream will come out silent.

When You Need a Container Tool Instead

• Your file is a true raw .hevc elementary stream — it has no audio inside, so no setting on this page can create a soundtrack that was never encoded.
• You want the sound from a video you recorded or downloaded: upload the original container, not a demuxed stream. Use MP4 to AIFF for MP4 files, MKV to AIFF for Matroska files, or MOV to AIFF for QuickTime files — these interleave video and audio, so there is a real track to extract.
• You actually want the video in a playable package rather than its audio: wrap the stream into a normal file with HEVC to MP4 instead.

How to Convert HEVC to AIFF

1. Upload Your HEVC File: Drag and drop your .hevc onto the page, or click "+ Add Files" to choose it from your computer. You can queue several files to process with the same settings.
2. Set the Audio Sample Rate and Channel: Open "Show All Options." Audio Sample Rate and Audio Channel both default to Original, which copies the decoded audio untouched; lower them only if you need a smaller file or mono output. AIFF is uncompressed, so these settings — not a quality slider — drive the file size.
3. Trim the Output (Optional): Use Trim to export only part of the clip instead of the whole timeline.
4. Convert and Download: Click "Convert" and download your AIFF. No sign-up, no watermark. If you uploaded a true raw stream, the audio will be empty — that is the format, not a fault.

Frequently Asked Questions

Why is my HEVC to AIFF output silent or empty?

Because a raw .hevc file is an H.265 video elementary stream and holds no audio. There is no soundtrack inside the file to decode, so any AIFF produced from a bare .hevc will be silent. The audio for that footage lived in the container — an .mp4, .mkv, or .mov — that the video was demuxed from. Convert that original container to AIFF instead.

Does a .hevc file contain audio I can extract to AIFF?

Normally no. HEVC, defined by ITU-T H.265 / ISO/IEC 23008-2 and approved in 2013, is a video-only codec, and a plain .hevc, .h265, or .265 file is a raw video bitstream with no audio track. An elementary stream carries only one kind of data. You only get sound out if the file you uploaded is actually a container (such as an MP4 misnamed .hevc) that happens to carry an audio track alongside the video.

My video clearly has sound — which tool do I actually use?

Start from the original container, not a bare stream. If your file is an MP4, use MP4 to AIFF; if it is a Matroska file, use MKV to AIFF; if it is a QuickTime file, use MOV to AIFF. All three interleave video and audio together, so the converter has a real track to decode and write as AIFF. A bare .hevc stream does not.

Will AIFF give me better audio quality than MP3 from the same video?

Only up to the quality of the source. AIFF stores uncompressed linear PCM, so it never adds its own compression loss — but the audio inside a video container is usually already lossy (AAC or AC-3). Saving that to AIFF preserves it exactly without further degradation, yet it cannot rebuild detail the original encoder discarded. AIFF's advantage is that it is a clean, editable master for tools like Logic Pro or GarageBand; the trade-off is size, since uncompressed CD-quality PCM runs roughly 10 MB per minute.

What is AIFF, and is .aif the same thing?

AIFF (Audio Interchange File Format) is Apple's uncompressed audio format, introduced in 1988 and based on Electronic Arts' Interchange File Format. It stores big-endian linear PCM, which is why this converter defaults the AIFF audio codec to PCM 16-bit Big Endian. The .aif and .aiff extensions refer to the same format — .aif is just the older 3-letter spelling — so a player that opens one opens the other.

Does this converter run in the browser, and how long are my files kept?

No — conversion happens on our servers, not in your browser. Your file is uploaded over an encrypted connection, processed there, and deleted automatically a few hours after conversion — never shared or made public. There is no sign-up and no watermark. In our testing, a true raw .hevc elementary stream produced a silent AIFF regardless of the sample-rate or channel settings, because there was no audio track inside the file to begin with.