M4R to 3GP Converter

Convert M4R to 3GP online, for free.



选择文件
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  • 来自 Dropbox
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  • 来自网址
最大文件大小 1GB. 升级更多 报名 了解更多

继续操作即表示您同意我们的使用条款。


Auto
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).
No change
Choose how you want to adjust your video dimensions. If you select resolution or aspect ratio, the original video's width will be used to calculate the new height according to the chosen aspect ratio.
No change
Change FPS (frames per second) of video
None
Video will be rotated clockwise.
No change
Upload
Select the best option for your subtitles: 'Upload' to add your own, or 'Copy' to replicate from the original file.
选择一个文件 浏览
Upload a .srt or .ass file.
Hard
Hardsubs, always visible and integrated into the video, are suitable for permanent captions, while softsubs, stored separately, can be turned on or off for customized viewing.
Auto
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%
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Enter crop rectangle's width and height in pixels (0 - 10000). Odd dimension numbers will be rounded down to the nearest even number.


How to Convert M4R to 3GP?

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

Easy to Use

Simply upload your M4R files and click the convert button. You can also batch convert M4R to 3GP 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 3GP 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


3GPP (3GP) is a multimedia container format designed for third generation (3G) universal mobile telecommunications system (UMTS) networks, which is a global system for mobile (GSM) standard. Since UMTS is a technology for mobile, the 3GP format allows mobile phones on UMTS networks to capture, save, deliver, and play media over high-speed wireless connections.

 

How to open a 3GP file?

The best application for opening 3GP is Apple QuickTime. And although 3GP is designed for mobile, the file format opens easily on most operating systems, including Linux, Mac, and Windows.

 

3GP is a flexible file format that supports captions and subtitles via 3GPP Timed Text. It does not support interactive menus, but it is compatible with free third-party tools that provide such support. One example is AutoGK. To improve the quality of the video while viewing off-mobile, convert the file to MP4.

 

Developed by: 3rd Generation Partnership Project (3GPP)

Initial release: 1997

Useful links:

https://en.wikipedia.org/wiki/3GP_and_3G2

https://www.3gpp.org/

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