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Convert AMR to M4R - Create iPhone Ringtones from Voice Recordings

Turn voice recordings and mobile audio into custom iPhone ringtones.

Step 1: Upload your files

You can also Drag and drop files.

Step 2: Choose format
Step 3: Convert files

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Turn Voice Recordings into iPhone Ringtones

AMR files are common on older mobile phones and voice recording apps. They capture audio efficiently but won't work as iPhone ringtones. Converting to M4R solves this - M4R is the only format iPhones accept for custom ringtones.

Whether it's a voice memo, a recorded message, or audio from an old phone, our converter transforms your AMR files into ready-to-use iPhone ringtones in seconds.

How to Convert AMR to M4R

  1. Upload your AMR file - Drag and drop or tap to select your voice recording
  2. Choose M4R output - Select M4R as your target format for iPhone ringtones
  3. Download your ringtone - Get your M4R file ready to sync with your iPhone

The entire process takes just a few seconds. No software to install, no account required.

Understanding the Formats

What is AMR?

AMR (Adaptive Multi-Rate) is an audio format developed for mobile communications. It excels at compressing speech efficiently, which is why phones use it for voice recordings and messaging. AMR files are small but optimized for voice, not music.

What is M4R?

M4R is Apple's ringtone format, essentially an AAC audio file with a special extension that tells iPhones to treat it as a ringtone. M4R files have a 40-second maximum length - perfect for short audio clips like voice recordings.

In our testing, AMR voice recordings convert cleanly to M4R, maintaining clarity while becoming fully compatible with iPhones.

When to Use This Conversion

Personal Voice Ringtones

Record a family member saying your name or a custom greeting. Convert the AMR recording to M4R and set it as your ringtone.

Migrating from Old Phones

Many older Android phones and feature phones save voice memos as AMR. Convert these recordings to M4R if you've switched to iPhone.

Voice Message Keepsakes

Want to keep a special voice message as a ringtone? If it's saved as AMR, convert to M4R and sync it to your iPhone.

Alternatives to Consider

If you need your audio in a different format, consider these options:

  • AMR to MP3 - Universal format that plays everywhere, ideal for sharing or archiving
  • AMR to M4A - Apple's standard audio format for music (not ringtones)

Choose M4R specifically when you want to use the audio as an iPhone ringtone.

Works on Any Device

Our converter runs entirely in your browser:

  • Windows, Mac, Linux, Chromebook
  • Chrome, Firefox, Safari, Edge
  • iPhone, iPad, Android

No downloads or installations needed. Just upload, convert, and download your new ringtone.

Pro Tip

AMR files recorded at higher bitrates (12.2 kbps) will produce noticeably better M4R ringtones than those at 4.75 kbps. Check your recording app's quality settings before capturing audio you plan to use as a ringtone.

Common Mistake

Trying to use AMR files longer than 40 seconds as ringtones. iPhone will reject M4R files that exceed this limit. Trim your audio to under 40 seconds before syncing.

Best For

Creating personalized iPhone ringtones from voice recordings - family greetings, kids saying your name, or memorable voice messages you want to hear when your phone rings.

Not Recommended

Converting music stored as AMR. The format is optimized for speech at low bitrates, so music quality will be poor. For music ringtones, start with MP3 or M4A source files instead.

Frequently Asked Questions

AMR (Adaptive Multi-Rate) is an audio format designed for speech compression in mobile communications. It's commonly used for voice recordings, voicemail, and audio messages on mobile phones.

M4R is Apple's ringtone format for iPhones. It's technically an AAC audio file with a different extension that tells iOS to recognize it as a ringtone rather than a regular audio file.

Yes. AMR is already optimized for voice, and M4R uses AAC compression which handles voice audio well. Your recording will maintain its original clarity.

Yes. iPhone ringtones can be a maximum of 40 seconds long. If your AMR file is longer, you may need to trim it before or after conversion.

Connect your iPhone to your computer, open Finder (Mac) or iTunes (Windows), and drag the M4R file into the Tones section. Then sync your device.

Yes. Upload multiple AMR files and convert them all to M4R in one batch. This is useful when you have several recordings to turn into ringtones.

AMR and M4R use completely different audio codecs. AMR uses Adaptive Multi-Rate compression while M4R uses AAC. The files must be properly transcoded, not just renamed.

No. The conversion happens entirely in your browser. Your audio files stay on your device and are never uploaded to any server.

AMR is designed for voice at low bitrates (typically 4.75-12.2 kbps). The M4R output will match this quality. For music or high-fidelity audio, AMR isn't the ideal source format.

Yes. The converter works in mobile browsers including Safari on iPhone and Chrome on Android. You can convert AMR to M4R directly on your phone.

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