M4R to OGA Converter

How to Convert M4R to OGA

1. Upload Your M4R Ringtone: Drag .m4r files onto the page or click "+ Add Files". Batch upload is supported, and every queued file uses the same settings.
2. Choose the Codec Inside the Ogg File: Audio Codec offers Vorbis, Opus, FLAC and Speex. Vorbis suits music and desktop sounds, Opus is the most efficient at low bitrates, FLAC is lossless packaging, and Speex is a legacy speech codec.
3. Set Quality, Channels and Trim: Under File Compression, pick a Quality Preset, a Constant Bitrate, a Variable Bitrate range, a Custom Bitrate or a Specific file size. Adjust Audio Channel, Audio Sample Rate and Trim if you need mono, a fixed rate or a shorter clip.
4. Convert and Download: Click Convert and save the .oga. Files are uploaded over TLS, processed on our servers, and deleted automatically a few hours later. No sign-up, no watermark.

Why Move an iPhone Ringtone to Ogg Audio

An M4R is the iPhone's custom-ringtone file — AAC-LC audio in an MPEG-4 container, the same structure as an M4A, with an extension that tells iOS it is a tone. It is tied to Apple's world. OGA is the audio-only extension for Ogg, the open, royalty-free container from the Xiph.Org Foundation, and it is at home almost everywhere Apple formats are not:

• Linux desktop sounds. The freedesktop.org sound theme that many Linux desktops use ships its event sounds as .oga files. A ringtone you like converts into a custom bell, login chime or message alert.
• Web pages. Firefox, Chrome and Edge play Ogg Vorbis and Opus in an <audio> element.
• Games and open-source projects. Engines such as Godot import Ogg Vorbis directly, and Wikimedia Commons accepts Ogg audio uploads.

For an Android ringtone, the same kind of Ogg audio with the more familiar .ogg extension is the safer choice, because some phone file pickers do not recognise .oga: use M4R to OGG, or M4R to MP3 for the widest compatibility.

One honest note: your M4R is already lossy AAC, and Vorbis, Opus and Speex are lossy too, so the conversion stacks a second generation of compression. At a sensible bitrate the extra loss is small, but it is never a gain. FLAC inside Ogg avoids new loss, but it cannot restore what AAC removed and makes the file much larger.

M4R vs OGA

Which Codec to Put Inside the OGA

The sample-rate list changes with the codec because each encoder supports different rates; the page only offers combinations the encoder can produce.

Size of a 30-Second Ringtone at Common Bitrates

Size in kilobytes is roughly bitrate (kbps) × seconds ÷ 8.

Going far above the ringtone's own bitrate only makes the file bigger; it cannot add back detail the AAC encode removed.

Frequently Asked Questions

Will the OGA sound as good as the M4R?

Close, at a sensible bitrate. Because both formats are lossy, a little extra loss is unavoidable, but around 128 kbps Vorbis or 96 kbps Opus most listeners will not tell a ringtone apart from the original. Very low bitrates make the second generation of compression easier to hear.

Vorbis or Opus?

Vorbis is the classic Ogg codec and the most widely recognised in .oga files, including desktop sound themes and game engines. Opus is newer and more efficient, especially below about 96 kbps and for voice. For a music ringtone either works; for a spoken tone or a very small file, choose Opus.

Is .oga different from .ogg?

Both are Ogg files. .oga was introduced by Xiph.Org to mark audio-only Ogg content, while .ogg is the older, more general extension most players and phones expect. The audio inside can be identical.

Can I use the OGA as an Android ringtone?

Android plays Ogg audio, but some ringtone pickers only list familiar extensions. For a ringtone, convert to .ogg or MP3 instead; Android does not need M4R at all.

How do I make it a Linux notification sound?

Where to put it depends on your desktop. Many desktops let you choose an alert sound in their sound settings, and sound themes that follow the freedesktop.org specification store their events as .oga files. Mono Vorbis at 44100 Hz and a 1–3 second trim make a tidy event sound.

Will it play on an iPhone or in Safari?

Apple's platforms have historically not played Ogg files in their built-in apps. If the audience is on Apple devices, keep the M4R or use an AAC format. You can also turn an Ogg file back into a tone with OGA to M4R.

Why are some sample rates missing when I pick Vorbis or Speex?

The encoders accept different rates. On this page Vorbis offers "ORIGINAL", 44100 and 48000 Hz, and Speex offers 8000 or 16000 Hz, so the list only shows rates that will work for the codec you selected.

How are my files handled?

Files are uploaded over an encrypted (TLS) connection, converted on our servers, and deleted automatically a few hours after processing. No account, no watermark. Every other ringtone output is listed on the M4R Converter.