M4R to AAC Converter

Convert M4R to AAC online, for free.



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Choose a codec to encode or compress the audio stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding audio, choose "Copy" (not recommended).
100% represents the original volume. To double the volume, increase it to 200%. To reduce volume by half, select 50%
Enable if you want to reverse audio stream
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Specify the end position of trim (HH:MM:SS.MS). Leave at 00:00:00.00 to disable.


How to Convert M4R to AAC?

  1. Click the “Choose Files” button to select your M4R files.
  2. Click the “Convert to AAC” button to start the conversion.
  3. When the status change to “Done” click the “Download AAC” button

Easy to Use

Simply upload your M4R files and click the convert button. You can also batch convert M4R to AAC format.

Best Quality

We use both open source and custom software to make sure our conversions are of the highest quality. In most cases, you can fine-tune conversion parameters using “Advanced Settings” (optional, look for the icon).

Free & Secure

Our M4R to AAC Converter is free and works on any web browser. We guarantee file security and privacy. Files are protected with 256-bit SSL encryption and automatically delete after a few hours.


Apple iPhone Ringtone (M4R) is the file format Apple uses to store ringtones on iPhones. The maximum length of an M4R file is 40 seconds. The only difference between M4R and MPEG 4 Audio (M4A) is the file extension, which lets an iPhone know M4R is a ringtone instead of a song.

 

How to open an M4R file?

As a format deployed by Apple for iPhone ringtones, M4R files open on iTunes by default.

 

Alternatively, Apple iOS is another good choice for opening M4R files. To create a custom ringtone, simply save an M4A file as an M4R file, and then import it into the iPhone.

 

Developed by: Apple Inc.

Initial Release: 2007


Advanced Audio Coding (AAC) is a digital audio file format that reduces file size via lossy compression. Its primary uses are digital TV, digital radio, and Internet streaming. It is the standard audio format for iOS, YouTube, Nintendo, and Playstation. ISO/IEC designated the AAC codec as an improvement to MP3, due its ability to compress file size more efficiently while providing quality similar to uncompressed audio.

 

How to open an AAC file?

For best results, use VLC media player to open AAC files. Alternatively, AAC also opens by default in iTunes. AAC files are ubiquitous, however, and open in many other programs and software.

 

Additionally, since AAC files often serve as the audio files for video games, they open on most popular gaming consoles, such as Nintendo 3DS and Playstation 4.

 

Developed by: ISO/IEC MPEG Audio Committee

Initial Release: 1997

Useful links:

https://en.wikipedia.org/wiki/Advanced_Audio_Coding

https://www.iso.org/standard/43345.html?browse=tc


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