Convert AMR to M4R
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We offer a free online converter that can convert audio files from amr format to m4r format, along with a range of other audio formats.
How to convert amr to m4r?
Step 1
Upload amr-file
You can select amr file you want to convert from your computer, Google Drive, Dropbox or simply drag and drop it onto the page.
Step 2
Select «to m4r»
Choose m4r or any of the other 200+ supported formats you'd like to convert to.
Step 3
Download your m4r file
Please wait for the conversion to complete, then click on the download button to obtain your converted file in the m4r format.
Best tool to convert amr to m4r
amr to m4r Fast and easy
Simply drag and drop your amr files onto the webpage, and you'll be able to convert them to m4r or over 250 different file formats, all without having to register, provide an email address, or include a watermark.
Secure amr to m4r Conversion
As soon as you upload your amr files, we instantly delete them. Converted files are then deleted after 24 hours. Furthermore, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
You don't have to go through the hassle of installing any software. We handle all amr to m4r conversions in the cloud, which means that none of your computer's resources will be used in the process.
Adaptive Multi-Rate Codec File
| Extension | .amr |
| Category | 🔵 audio |
| Programs | 🔵 Apple QuickTime 🔵 Realplayer 🔵 VLC media Player |
| Main program | 🔵 Audacity |
| Description | 🔵 AMR is a compressed file format that functions to enhance speech coding, and it consists of multiple sampling rates narrowband devices used in encoding or decoding. Recording of AMR files can be done using mobile phones. For video and audio files to play simultaneously or accomplish random access memory, one can utilize the 3GPP format. 160 20- millisecond samples embedded in each frame are coded using AMR using ACELP, DTX, VAD, and CNG. Recorded AMR files can be converted into other files allowing their use and for them to be distributed. |
| Technical details | 🔵 AMR can encode signals ranging from 4.75 to 12.2 kbit/s with quality that begins at 7.4 kbit/s.3GPP took up file format in 1999. It is a method that is utilized by GSM and UMTS. It uses link adaptation to select one of the eight different bit rates. AMR optimizes link adaptation with the best codec devices for it to be used by radio channels and capacity requirements. This only works if the connection is good enough to prevent the loss of audio quality. |
| Developer | 🔵 3rd Generation Partnership Project (3GPP) |
| MIME type | 🔵 audio/amr |
iPhone Ringtone File
| Extension | .m4r |
| Category | 🔵 audio |
| Programs | 🔵 Apple QuickTime Player |
| Main program | 🔵 Apple iTunes |
| Description | 🔵 This format is used in smartphones of the iPhone series. Mainly this format is an AAC and M4A file. Not all audio files of the iTunes store can be converted to M4R. When syncing with an iPhone and a computer, these files are automatically moved to the phone. These files can be purchased or downloaded from iTunes. Moreover, audio files of other formats can be converted to M4R format. This format ensures possible best ringtone for iPhone. |
| Technical details | 🔵 M4R differs from MP3 because of compression. This format is a type of MPEG-4 standard under the ISO-IEC standard 14495-3. Despite auditory masking, a lossy compression of this format is similar to AAC and MP3 files. It helps to shrink the audio by removing the data and audio, which can not be sensed by the human ear. Meaning M4R can produce high-end audio file without acquiring large space. Users can use any of their desired audio as their choice (like ringtone or alert tone). |
| Developer | 🔵 Apple Inc |
| MIME type | 🔵 audio/aac |
FAQs on amr to m4r Conversion
❓ How do I change amr to m4r?
To get started, either pick a file you want to convert from amr and select it or drag and drop it into the conversion tool. Next, select the desired format that you wish to convert your file to. Once you have selected the format, click the "convert" button and wait for the tool to finish converting your file.
⏳ What is the estimated time it will take to convert amr to m4r?
Typically, image conversions only take a few seconds, so you can expect a speedy conversion when changing amr to m4r.
🛡️ Can I trust OnlineConvertFree to convert amr to m4r securely?
Absolutely! We take your security seriously, and guarantee the protection of your uploaded and converted files. No one will have access to your information since we delete all files once the conversion process is complete. You can trust that all types of conversions, including amr to m4r, are 100% safe on OnlineConvertFree.
📱 Is it possible to convert amr to m4r without having to install any software?
Yes, that's right! OnlineConvertFree doesn't require any installation, which means that you can convert any files, including amr to m4r, on your computer or mobile device, completely online.