HEVC to AMR Converter

Convert HEVC to AMR: Read This First

A bare .hevc file is a raw H.265 video bitstream — by the standard's own 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 AMR (.amr) file, there is usually nothing to pull: the result comes out silent or empty. On top of that, AMR is a narrowband speech codec built for phone calls, not music. This page is honest about both points, shows how the converter behaves, and points you to the file that actually holds your audio.

How to Convert HEVC to AMR

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 and process them in one batch with the same settings.
2. Set the Quality Preset: Open "Show All Options." AMR output defaults to AMR Narrow Band, so the Quality Preset and Constant Bitrate presets (4.75 up to 12.2 kbps for AMR-NB) govern how aggressively the speech is compressed. Leave it on the recommended preset unless you need a specific size.
3. Check Audio Channel, Sample Rate, or Trim (Optional): AMR forces Audio Channel to MONO and Audio Sample Rate to 8000 Hz — that is the codec's fixed format, not a limitation of this tool. Use Trim to export a start time and duration instead of the whole timeline.
4. Convert and Download: Click "Convert" and download your AMR. No sign-up, no watermark. If you uploaded a true raw stream, the audio will be empty — that is the format, not a fault.

Walk-through: Why a Raw HEVC File Has No Audio to Extract

HEVC (High Efficiency Video Coding) was approved as ITU-T H.265 in April 2013 and standardized jointly as ISO/IEC 23008-2 (MPEG-H Part 2). It is a video-only compression standard — it defines how picture frames are encoded and says nothing about audio. The key word for a .hevc, .h265, or .265 file is elementary: an elementary stream holds a single media type on its own, so a spec-correct .hevc contains only compressed video frames and sequence parameter sets — no audio, no metadata, no container.

In a normal recording or download, the H.265 video is muxed into a container alongside a separate audio track. Whether your conversion produces any sound depends entirely on what is genuinely inside the file you uploaded:

• A genuine, spec-correct .hevc holds no audio stream. The decoder finds nothing to extract, so the AMR comes out silent or the job returns no usable output. No setting on this page can create a soundtrack that was never written into the file.
• A file named .hevc that actually plays with sound is unusual, but if yours does, it is almost certainly a container (an .mp4 or .mov) that was renamed or relabeled with a .hevc extension. If a real audio track is inside, the converter decodes it and writes AMR normally.
• Quick test: open the file in VLC. If you hear audio, it has a track to extract; if it plays as silent video, it does not, and the AMR will be empty.

A Second Catch: AMR Is a Speech Codec, Not a Music Codec

Even when there is audio to extract, AMR is rarely the right target. AMR (Adaptive Multi-Rate) was adopted by 3GPP in October 1999 as the speech codec for GSM and 3G phone calls. AMR Narrow Band samples at 8 kHz mono and captures only the 200–3400 Hz telephone band at 4.75–12.2 kbit/s — tuned for the human voice, so anything musical or wideband is discarded. The wider AMR Wide Band mode (6.60–23.85 kbps, 16 kHz) sounds better but is still voice-oriented. If the audio you want is music, a soundtrack, or anything other than plain speech, choose a general-purpose codec such as MP3 or AAC instead — AMR will make it sound thin and muffled.

Common Errors and How to Fix Them

• "My AMR is silent or zero-length" — The .hevc is a true H.265 video elementary stream, so there is no audio to decode. You need the original container the video came from — convert that file to AMR instead.
• "The conversion failed or returned no output" — Same root cause: an audio-only target needs an audio stream in the input. Confirm the file plays with sound in a media player before converting.
• "It worked, but the audio sounds muffled or tinny" — That is AMR doing its job. An 8 kHz mono speech codec strips everything above the telephone band, so music and full-range audio always come out thin. Convert to MP4 to MP3 for general-purpose audio instead.
• "It worked, but I actually wanted the video" — AMR is an audio-only format, so the picture is discarded by design. To keep the footage in a playable file, use HEVC to MP4 instead.
• "A long source uploads slowly" — A long 4K H.265 capture can be large, and the real wait is upload time over your connection, not anything on your device. Trim to the segment you need before uploading.

When This Doesn't Work

If your file is a real video-only .hevc, no online tool can conjure audio that was never written into it — the data simply isn't there. Your genuine path is to start from the original container that holds both the video and a separate audio track. For a voice recording you genuinely want as AMR, convert MP4 to AMR for MP4 files, MKV to AMR for Matroska files, or MOV to AMR for QuickTime files. Many "HEVC to AMR" tools online accept the upload and run the job without warning you that a bare HEVC has no soundtrack — the empty result is the format talking, not the converter.

Frequently Asked Questions

Why is my HEVC to AMR output silent or empty?

Because a raw .hevc file is an H.265 video elementary stream and holds no audio. A spec-correct .hevc, .h265, or .265 contains only compressed video frames and sequence headers — there is no audio track inside it to decode, so any AMR produced from a bare stream will be silent or empty. 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 AMR instead.

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

Normally no. HEVC, defined by ITU-T H.265 and ISO/IEC 23008-2 and approved in 2013, is a video-only codec, and a plain .hevc 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 — for example an MP4 misnamed .hevc — that happens to carry an audio track alongside the video.

Should I even use AMR for this audio?

Only if the audio is plain speech. AMR (Adaptive Multi-Rate) is a speech codec adopted by 3GPP in October 1999 for GSM and 3G voice calls; AMR Narrow Band records 8 kHz mono across only the 200–3400 Hz telephone band, so it strips out music and high frequencies by design. It is excellent for compact voice memos and tiny dictation files, and poor for anything else. For a soundtrack, song, or general audio, pick MP3 or AAC rather than AMR.

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 and you want speech as AMR, use MP4 to AMR; for a Matroska file use MKV to AMR; for QuickTime use MOV to AMR. If the audio is music or you just want a portable copy, MP4 to MP3 is the better target. All of these interleave video and audio together, so the converter has a real track to decode — a bare .hevc stream does not.

How can I tell whether my .hevc actually contains audio before converting?

Play it in a media player such as VLC. If you hear sound, the file is almost certainly a container that was renamed with a .hevc extension, and it will convert to AMR normally. If it plays as silent video, it is a true video-only H.265 stream and there is nothing to extract. In our testing, files that played silently in VLC produced empty AMR output every time regardless of the quality or bitrate settings, while renamed containers that played with speech converted cleanly.

I want the HEVC video, not its (missing) audio — what should I use?

That is a different tool. HEVC to MP4 wraps the raw H.265 stream into a widely playable MP4 container so it opens in normal players, and the general Video Converter handles other targets. Use this AMR page only when you have a real speech source — the original muxed container — rather than a bare video-only .hevc.

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

Your file is uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion — no sign-up, no watermark, and never shared or made public. The realistic limit on a very large HEVC capture is upload time over your connection, not anything on your device.