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Convert 264 to MP3

Can you convert 264 to MP3?
Verified by Adam B.· reviewed by FE Editorial ·updated Aug 22, 2026
QUICK ANSWER
Is it possible to convert 264 to MP3?
No - not a direct conversion.

A .264 elementary stream contains compressed video frames only - no audio data exists in the file to extract or convert. If your DVR recorded audio, re-export the footage from the device in MP4 or MKV format, then extract the audio from that file.

No direct path
Also to MP3: CAF · STS · OGA

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Tested on macOS, Windows & Linux
Last verified Sep 2026

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Why convert 264 to MP3?

A .264 (also .h264) file is the direct output of an H.264 encoder: a sequence of NAL units carrying video frames only, with no container, no timing data, and no audio. .mp3 is a lossy compressed audio format that requires audio data as input, which .264 structurally cannot provide - this is a format limitation, not a software limitation.

How to convert 264 to MP3

Freemake Video Converter FREE

If your DVR provides an .mp4 or .mkv export that includes an audio track, open it in Freemake Video Converter and extract the audio as MP3.

Adapter FREE

If you have a container file (.mp4, .mkv) from your DVR that includes audio, drag it into Adapter and select MP3 as the output format.

Programs that convert 264

Freemake Video Converter
Adapter

About these formats

.264 Raw H.264 / AVC Video Elementary Stream (DVR/CCTV export)

A .264 file is a raw H.264 (AVC) video stream, most commonly exported by a CCTV camera, DVR, or NVR. It contains video only - no audio, no container, no timing data - which is why most…

Open .264 details →
.MP3 MPEG-1/2 Audio Layer III

An MP3 file is a compressed audio recording - a song, podcast, audiobook, or ringtone. Almost every device plays it without extra software: double-click on Windows to open Media Player, on…

Open .MP3 details →

Quality & what to watch

  • No tool can extract audio from a .264 file because the format contains no audio data by design.
  • If your DVR or CCTV system records audio, re-export the footage in MP4 or MKV format from the device to get a file that includes the audio track.
  • If you already have a container file (.mp4, .mkv) with an audio track, Freemake Video Converter or Adapter can extract it as MP3.

Frequently asked questions

Why does my `.264` file have no audio?
A raw H.264 elementary stream carries video only by design; DVRs that record audio often store it in a separate file or proprietary container, not in the .264 export.
Can any converter extract MP3 from a `.264` file?
No. Any tool that claims to do so will produce a silent file or return an error - there is no audio data to work with.
How do I get audio from my CCTV recording?
Check your DVR or NVR software for an export option that includes audio, typically outputting an .mp4 or .mkv file.
What can I do with a `.264` file to make it playable?
Use Freemake Video Converter or another tool to remux it into .mp4; this takes seconds and preserves video quality.