M4R to AVI Converter

Convert M4R to AVI online, for free.



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Video Options
Choose a codec to encode or compress the video stream. To use the most common codec, select "Auto" (recommended). To convert without re-encoding video, choose "Copy" (not recommended).
Select a resolution for your video (width x height) in pixels.
Change the ratio between width and height, for example, 4:3 or 3:2
Change FPS (frames per second) of video
Video will be rotated clockwise.
Sets the mode of sizing the video. "Max" resizes the video to fit within the width and height, but will not increase the size of the image if it is smaller than width or height. "Crop" resizes the video to fill the width and height dimensions and crops any excess video data. "Scale" enforces the video width and height by scaling. "Pad" resizes the video to the width and height dimensions and keeps the aspect ratio by adding black bars if necessary.
Choose a file Browse
Upload a .srt or .ass subtitle file to be burned into your video.
Audio Options
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%
Trim Settings
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Specify the end position of trim (HH:MM:SS). Leave at 00:00:00 to disable.



How to Convert M4R to AVI?

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

Easy to Use

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

Audio Video Interleave (AVI) is a multimedia container developed by Microsoft. AVI is a descendant of the Resource Interchange File Format (RIFF). With the assistance of third-party programs, AVI can support chapters, captions, subtitles, menus, streaming, attachments, and 3D containers.

 

How to open an AVI file?

Microsoft provides a downloadable and free AVI Viewer. Another way to view an AVI file is to use a version of Microsoft Windows Media Player that is compatible with the operating system.

 

While AVI files are optimized for the Internet, hardware players support them as well. If an AVI file does not open, then use VLC media player.

 

Developed by: Microsoft

Initial release: 1992

Useful links:

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

https://tools.ietf.org/html/rfc2361

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