Convert AMR to M4A
Choose file to convert
We're delighted to provide a complimentary online converter capable of effortlessly transforming your audio files from amr to m4a format, in addition to a multitude of other formats.
How to convert amr to m4a?
Step 1
Upload an amr-file
You can select the amr file you wish to convert from your computer, Google Drive, Dropbox or just drag and drop it onto the page.
Step 2
Select "to m4a"
Choose m4a or any other of the 200+ supported formats that you wish to convert to.
Step 3
Download your m4a file
Please wait for the conversion to be completed, then click on the download button to get your converted file in the m4a format.
The security of your files is our priority
Recognizing the crucial significance of our users' data security, we have put a number of measures in place to guarantee reliable file conversion without the jeopardy of information leakage or privacy infringements.
Data Encryption
Every piece of information uploaded to our platform undergoes SSL encryption, safeguarding privacy during the transmission process.
Secure Storage
Upon completion of the conversion, the files are retained on secure servers for a duration of 24 hours and are then automatically obliterated, preventing any third-party access.
Safe Scripting
We regularly screen our file conversion tools for any malicious code or vulnerabilities, mitigating the risk of potential cyber threats.
Best tool to convert amr to m4a
Converting amr to m4a is fast and easy
Just drag and drop your amr files onto the webpage, and you'll have the capability to convert them to m4a or over 250 different file formats, all without the need to register, provide an email address, or include a watermark.
Safe amr to m4a Conversion
Immediately upon uploading your amr files, we delete them without delay. Converted files are then removed after 24 hours. Additionally, we ensure that all file transfers are secure through advanced SSL encryption.
No Software Installation Required
There's no need to go through the inconvenience of installing any software. We conveniently handle all amr to m4a conversions in the cloud, which implies that none of your computer's resources will be consumed 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 compact file format primarily developed for speech coding. It uses various sampling rates specifically designed for narrowband devices used in encoding and decoding. This format is commonly used in mobile phones for recording audio files. The 3GPP format is used to play both audio and video simultaneously or to support random access memory capabilities. Each AMR file frame contains 160 samples, each lasting 20 milliseconds. These samples are encoded using methods like Algebraic Code Excited Linear Prediction (ACELP), Discontinuous Transmission (DTX), Voice Activity Detection (VAD), and Comfort Noise Generation (CNG). After recording, these AMR files can easily be converted to other formats for broader distribution. |
| Technical details | 🔵 AMR can encode signals at rates ranging from 4.75 to 12.2 kbit/s, but quality significantly improves above 7.4 kbit/s. The 3rd Generation Partnership Project (3GPP) adopted this format in 1999, and it's since become widely used in Global System for Mobile Communications (GSM) and Universal Mobile Telecommunications System (UMTS) networks. This system utilizes link adaptation to select one of eight different bit rates. AMR enhances link adaptation by choosing the codec best suited for the radio channel and its capacity requirements. However, this enhancement only works effectively if the connection is strong enough to maintain audio quality. |
| Developer | 🔵 3rd Generation Partnership Project (3GPP) |
| MIME type | 🔵 audio/amr |
MPEG-4 Audio Layer
| Extension | .m4a |
| Category | 🔵 audio |
| Programs | 🔵 Microsoft Windows Media Player 🔵 VLC media player 🔵 MPlayer 🔵 Amarok 🔵 Winamp 🔵 Apple QuickTime Player 🔵 Apple iTunes |
| Developer | 🔵 Apple |
| MIME type | 🔵 audio/mpeg |