Convert M4R to AMR
Convert M4R audios to AMR format, edit and optimize audios online and free.
Drop Files Anywhere to Upload
The M4R file extension stands for MPEG-4 Ringtone and is primarily used for creating custom ringtones for Apple devices, particularly iPhones. This format, a variant of the standard MPEG-4 Audio (M4A), emerged alongside the introduction of the iPhone in 2007. M4R files utilize Advanced Audio Coding (AAC) for compression, ensuring high-quality sound in a compact file size. Their use is strictly tied to Apple's ecosystem, allowing users to personalize their device's ringtones through the iTunes platform. M4R's history is closely linked to the evolution of mobile technology and the personalization trend in smartphone usage.
Adaptive Multi-Rate Codec (AMR) is a file extension used primarily in voice applications, including VoIP, audio messaging, and mobile phone telephony. Originating from the European Telecommunications Standards Institute (ETSI) in 1999, AMR files enable efficient compression and transmission of speech audio. The codec dynamically adjusts bit rates during transmission to optimize audio quality and network capacity. Its efficient bandwidth utilization and compatibility with various communication standards have made AMR a preferred choice for many modern communication systems.
Select any M4R audio you wish to convert by clicking the Choose File button.
For an advanced conversion, use the M4R to AMR optional tools available on the preview page and click the Convert button.
When the conversion status changes to successful, click on the Download button to get the final AMR audio.
Trim & cut M4R and convert it to AMR.
To change M4R format to AMR, upload your M4R file to proceed to the preview page. Use any available tools if you want to edit and manipulate your M4R file. Click on the convert button and wait for the convert to complete. Download the converted AMR file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to M4R file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to M4R file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to M4R file location or include path to your input file.