M4R is an AAC ringtone of about 40 seconds. Trim your OGG clip first, then convert to get a file iPhone accepts as a ringtone.
About OGG
Open royalty-free lossy format
OGG (typically Ogg Vorbis or Ogg Opus) is a free, open audio container that usually outperforms MP3 at the same bitrate, ideal for license-sensitive use.
- Free and open, no patent restrictions
- Better than MP3 at equal bitrate
- Compatibility varies on some mainstream players
About M4R
iPhone ringtone format
M4R is the ringtone format used by iPhone, essentially AAC audio limited to around 40 seconds, suited for creating custom ringtones.
- Usable directly as an iPhone ringtone
- Length-limited and single-purpose
OGG to M4R FAQ
Will converting OGG to M4R lose quality?
Both OGG and M4R are lossy formats. Re-compression may further reduce quality — choose a higher bitrate to minimize additional loss.
Will the file size change after conversion?
Converting to a lossless format (WAV) usually increases size, while converting to a lossy format (MP3, AAC) usually decreases it, depending on the chosen bitrate and sample rate.
How do I batch convert OGG to M4R?
Just drop multiple OGG files in; they are converted to M4R one by one via a queue. You can download them individually or as a single ZIP.