Convert AMR to M4R
Convert AMR audios to M4R format, edit and optimize audios online and free.
Drop Files Anywhere to Upload
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.
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.
Drag & drop or browse your device to select and upload your AMR file.
For advanced customized conversion, use AMR to M4R tools and click Convert.
Let the file convert, then you can download your M4R file right afterward.
Trim & cut AMR and convert it to M4R.
Convert AMR to M4R and set the output channels to Mono (1.0) or Stereo (2.0).
To change AMR format to M4R, upload your AMR file to proceed to the preview page. Use any available tools if you want to edit and manipulate your AMR file. Click on the convert button and wait for the convert to complete. Download the converted M4R file afterward.
Follow steps below if you have installed Vertopal CLI on your macOS system.
cd to AMR file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Windows system.
cd to AMR file location or include path to your input file.Follow steps below if you have installed Vertopal CLI on your Linux system.
cd to AMR file location or include path to your input file.