M4V to OGG Converter

Extract OGG Audio from an M4V

An Apple .m4v holds H.264 video with an AAC soundtrack beside it. This tool keeps the soundtrack and discards the picture, re-encoding the audio into an Ogg file — Vorbis by default, the fully open, patent- and royalty-free Xiph codec whose bitstream has been frozen since May 2000, which is why game engines, Linux software and long-lived open-source projects still ask for .ogg by name. The output is audio only, and because the source track is already lossy AAC, this is a second lossy generation rather than a copy.

How to Convert M4V to OGG

1. Upload Your M4V File: Drag and drop the file onto the page or click "+ Add Files" to browse. Both .m4v and .mp4 are accepted, and a queue of files converts with the same settings.
2. Pick the Audio Codec: Vorbis is pre-selected and is what most software means by an OGG file. The same dropdown also offers Opus (better at low bitrates), FLAC (lossless, much larger) and Speex (narrowband speech only) — all legal Ogg payloads, and each one changes which sample rates the page will let you choose.
3. Choose a Quality Mode, Channels, Sample Rate or Trim: File Compression offers Quality Preset, Specific file size, Custom Bitrate, Constant Bitrate and Variable Bitrate. Nothing is pre-selected in the Preset dropdown, so choose a level explicitly — if no preset reaches the server it falls back to its Medium level. Audio Channel offers Original, Mono or Stereo, Audio Sample Rate offers Original, 44100 Hz and 48000 Hz while Vorbis is selected, and Trim exports a single time range.
4. Convert and Download: Click Convert and save the .ogg. Files upload over an encrypted connection, are processed on our servers, and are deleted automatically after a few hours. No sign-up, no watermark.

Choosing a Bitrate for Vorbis

The Variable Bitrate dropdown on this page runs from 48K to 384K for Vorbis; Constant Bitrate offers fixed steps from 8 kbps to 384 kbps and starts at 128 kbps; Custom Bitrate lets you type any figure and also starts at 128 kbps. Going above the source track's bitrate does not recover anything AAC already discarded — matching it is the sensible ceiling.

Which Ogg Payload Should You Pick?

Channels, Sample Rate and What They Cost

Bitrate is the biggest lever on size, but the two settings beside it matter more than people expect on spoken-word material:

• Audio Channel offers Original, Mono and Stereo. Downmixing an interview or lecture to Mono roughly halves the data the encoder has to spend, with no meaningful loss on a single voice recorded to both channels.
• Audio Sample Rate should stay on Original unless something downstream demands a specific rate. Dropping the rate cuts the top of the frequency range rather than compressing it, which is a blunter instrument than simply lowering the bitrate.
• Trim beats both. Exporting 90 seconds instead of a 40-minute recording changes the output size by more than any codec setting will.
• Neither setting can improve on the source: a mono 22 kHz soundtrack does not become stereo or wideband by asking for it here.

Frequently Asked Questions

Does converting M4V to OGG keep the video?

No, and that is the point of this tool. Ogg Vorbis is an audio format, so the H.264 picture is dropped and only the soundtrack is written to the .ogg file — which is why the output is a fraction of the size of the M4V that produced it. If you want to keep the picture and only change container or codec, convert to a video target such as M4V to MP4 instead.

Will extracting OGG audio lose quality?

Yes, a little, because it is a re-encode rather than a copy. The audio in an M4V is AAC, which is already lossy, and Vorbis is also lossy, so the track is decoded and re-compressed and the second pass cannot rebuild anything the first one discarded. At 128-160 kbps stereo the result is transparent to most listeners on most material; the loss only becomes audible if you keep re-encoding the same audio repeatedly. Match the source bitrate rather than dropping well below it if fidelity matters.

Why does the sample rate list only show 44100 and 48000?

Because Vorbis is selected. Our encoder restricts Vorbis to sample rates that work reliably across the whole bitrate range, so the page only offers Original, 44.1 kHz and 48 kHz while Vorbis is the codec. Switch the Audio Codec to Opus and the list grows to include 8, 12, 16 and 24 kHz; switch to Speex and it shrinks to 8 kHz and 16 kHz only. Leaving it on Original is almost always right: in our own extraction test, a 44.1 kHz AAC soundtrack came back as a 44.1 kHz Vorbis file with the rate untouched.

Which Quality Preset is selected by default?

None — the Preset dropdown starts empty on audio targets, so pick a level deliberately rather than assuming a default is in place. If a conversion reaches our servers with no preset attached, the encoder falls back to its Medium quality level, which is a reasonable middle but almost certainly not what you would have chosen for either a voice recording or music. Alternatively, skip presets and use Constant Bitrate or Custom Bitrate to name an exact figure.

Should I extract to OGG Vorbis or to Opus?

Vorbis when something specifically expects a classic .ogg file: Unity, Godot and Unreal all handle Vorbis as a standard compressed audio asset, and plenty of mods, emulators and older Linux software assume it. Opus when the pipeline is modern or speech-heavy — it holds detail better at low bitrates and is the codec Xiph and the IETF developed after Vorbis. If you need Opus, extract to .opus directly rather than wrapping it in Ogg here. If you need maximum device compatibility, extract to MP3 instead.

Is a .ogg file the same as .oga or .ogv?

They are all the Ogg container with different payloads and naming conventions. .ogg conventionally means Vorbis audio and is what most software asks for; .oga is the more formally correct name for Ogg audio generally; .ogv is Ogg video, which is a different thing entirely. This page writes .ogg, and whichever codec you pick from the Audio Codec dropdown is what ends up inside it — so if a program insists on Vorbis specifically, leave that setting alone.

Can I convert a DRM-protected iTunes M4V to OGG?

No. Films and TV episodes bought or rented from Apple can be wrapped in FairPlay encryption, which restricts decoding to devices authorised with the purchasing Apple ID. No converter can read the audio out of a protected file, so the job fails rather than producing a silent or partial result. DRM-free M4V — your own exports, screen recordings, camera footage and anything never encrypted — extracts normally.

How do I extract only part of the soundtrack?

Set a start time and duration under Trim before converting, which is also the fastest option because the encoder does less work. If you have already converted and want to shorten the result, run the .ogg through the audio cutter — note that it takes audio files, so trim the original video with the video cutter if you would rather cut before extracting.

How long do my files stay on your servers?

Your M4V is uploaded over an encrypted connection, the audio is extracted on our servers, and the files are deleted automatically after a few hours — no sign-up, no watermark, never shared or made public. The practical limit is upload time rather than anything else: video files are large even when the audio you want out of them is small, so a long clip takes a while to send even though the .ogg comes back quickly.