AV1 to MP3 Converter

AV1 to MP3 Converter

AV1 is a video codec, not an audio format — so "converting AV1 to MP3" really means extracting the audio track from an AV1-encoded video and re-encoding it to MP3. The video frames are discarded; you get an audio-only MP3 you can play anywhere. The catch worth knowing up front: the audio inside an AV1 file is almost never "AV1 audio" (no such thing exists). It is usually Opus or AAC, carried alongside the AV1 video in an MP4, WebM, or Matroska (.mkv) container. This tool reads whatever audio stream is present and transcodes it to MP3.

AV1 Format at a Glance

MP3 Format at a Glance

How to Convert AV1 to MP3

1. Upload Your AV1 File: Drag and drop or click "+ Add Files" to load your AV1 video from your device. Batch upload is supported. Files are uploaded over an encrypted connection, processed on our servers, and deleted automatically a few hours after conversion.
2. Pick a Quality Preset: Choose a Quality Preset (Highest down to lower presets) for a one-click bitrate, or open Custom Bitrate and pick Constant Bitrate (CBR) for predictable size or Variable Bitrate (VBR) for better quality at the same average bitrate. Specific file size lets you target an exact size in MB.
3. Adjust Audio Settings (Optional): Set Audio Sample Rate (default Original — keep 44.1/48 kHz for music, drop to 22.05 or 16 kHz for speech), switch Audio Channel from Stereo to Mono to roughly halve a voice file, or use Trim to keep only part of the timeline.
4. Convert and Download: Click "Convert" and download your MP3 — individually or as a ZIP for batches. No sign-up, no watermark.

When You Want the Video Instead

If you actually want to keep the picture and only change the file type, audio extraction is the wrong tool — use AV1 to MP4 to keep both video and audio in a widely compatible container. And because an AV1 file's audio track is most often Opus, Opus to MP3 is the closest single-stream equivalent if you have already demuxed the audio.

Frequently Asked Questions

Is there such a thing as "AV1 audio"?

No. AV1 is strictly a video codec defined by the Alliance for Open Media — it encodes picture, not sound. When a file is described as "AV1," the audio riding alongside it is a separate stream encoded with a different codec, most commonly Opus or AAC. This converter pulls that existing audio stream out of the container and re-encodes it to MP3.

What audio codec is inside a typical AV1 video?

Per the AV1 specification's ecosystem, AV1 video "is usually accompanied with AAC or Opus audio." Opus is the most common pairing for web and streaming sources because, like AV1 itself, Opus is royalty-free (standardized by the IETF as RFC 6716), so the two are frequently bundled together in WebM and MP4 files. Regardless of which one your file uses, the output here is standard MP3.

Will converting AV1 audio to MP3 lose quality?

Some, yes — but usually not in a way you will hear. The source audio (Opus or AAC) is already lossy, and re-encoding to MP3 is a second lossy pass, so a small amount of detail is shed. Choosing 192 kbps or higher keeps the result transparent for casual listening; 320 kbps (the MP3 maximum) leaves the most headroom. You cannot recover quality the original audio never had, so there is no benefit to encoding above the source bitrate.

What bitrate should I pick for the MP3?

For music, 192–256 kbps is the practical sweet spot and 320 kbps is the spec ceiling. For speech — podcasts, lectures, voice memos — 96–128 kbps is plenty, and switching Audio Channel to Mono shrinks the file further with no loss for single-voice content. If you need to hit an exact target, use Specific file size and the encoder picks the bitrate for you.

Why is the output much smaller than the AV1 file?

Because the video is gone. In a typical AV1 video the picture accounts for the overwhelming majority of the data, while the audio track is a small fraction. Discarding the frames and keeping only the audio is why a multi-hundred-megabyte clip can become an MP3 of a few megabytes per minute of audio.

Does the MP3 keep the title and artist tags from the source?

Basic technical metadata is written automatically, but AV1 streaming files often carry little or no ID3-style title/artist information to begin with, so do not expect rich tags to appear. If you need clean track names, artist, or album art, add them afterward in a tag editor — that step is independent of the conversion.

Which players can open the resulting MP3?

Essentially all of them. MP3 (MPEG-1 Audio Layer III, ISO/IEC 11172-3) is one of the most broadly supported formats in existence: browser playback alone covers roughly 97% of global users, and every mainstream phone, car stereo, smart speaker, and media player handles it. That universality is the main reason to convert away from an AV1 container in the first place. In our testing, a 3-minute AV1 clip with a stereo Opus track produced a standard 44.1 kHz MP3 at the selected bitrate that played without re-encoding in Chrome, VLC, and the stock iOS and Android players.