M4R to M4A removes the ~40-second ringtone cap so the audio plays as a full track in iTunes and Apple Music, keeping its AAC encoding.
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
About M4A
Common audio container in Apple ecosystem
M4A is an MPEG-4 audio container, usually AAC or ALAC encoded, widely used across Apple devices and iTunes with a good balance of size and quality.
- Good balance of size and quality
- Native to the Apple ecosystem
- Limited support on some non-Apple players
M4R to M4A FAQ
Will converting M4R to M4A lose quality?
Both M4R and M4A 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 M4R to M4A?
Just drop multiple M4R files in; they are converted to M4A one by one via a queue. You can download them individually or as a single ZIP.