Convert AMR to WMA - online and free
How to convert a AMR to a WMA file?
- Choose the AMR file that you want to convert.
- Select WMA as the the format you want to convert your AMR file to.
- Click "Convert" to convert your AMR file.
Zamzar Pro Tip: You can use the Quicktime player to open AMR files.
Step 1 - Select a file(s) to convert
Step 2 - Convert your files to
Or choose a different format
Step 3 - Start converting
(And agree to our Terms)
We'll get right on it
Overall conversion/upload progress:
|File Name||File Size||Progress|
Click Choose Files to add more files or Convert Now to start converting your files
You're in good company:
Zamzar has converted over 510 million files since 2006
|Description||The Adaptive Multi-Rate format was specifically designed for speech coding. Many phone providers use the AMR format to store short audio recordings but shouldn't really be used to store other audio such as music due to it's design. In 1999 AMR was adopted as the chosen speech standard for 3GPP. The AMR file is often converted into other formats to allow for use and ease of distribution.|
|Technical Details||The AMR codec uses eight source codecs with bit-rates of 12.2, 10.2, 7.95, 7.40, 6.70, 5.90, 5.15 and 4.75 kbit/s and has a sampling frequency of 8kHz which is filtered to 200-3400 Hz. The AMR algorithm utilises link adaptation in order to be utilised with radio channel and capacity requirements.|
|Developed by||3rd Generation Partnership Project (3GPP)|
|Description||Developed by the Signal Processing Group at Microsoft, the WMA file format is part of the Windows Media framework and was first released commercially in 1999, with support for playback of WMA encoded files as part of Windows Media Player. Creation of WMA files did not come until Windows Media Player version 7. The original codec was targeted as a direct competitor to the MP3 and RealAudio formats, and has achieved a broad level of adoption thanks to support for playback on numerous DVD players, Nokia mobile handsets and Playstation portable devices.|
|Technical Details||In almost all circumstances WMA files are part of the Advanced Systems Format (ASF) container, a proprietary container format developed by Microsoft for both digital video and digital audio. Every WMA file contains an audio track encoded in one of four mutually distinct codecs - WMA, WMA Voice, WMA Lossless or WMA Pro - WMA is the most commonly found of the four, but is a lossy codec, with the ability to encode audio signals sampled at up to 48 kHz. WMA Pro is an improved version, allowing sampling up to 96 kHz, but has achieved little hardware and software support. WMA Lossless is designed to compress audio signals with no loss of quality from the original source (up to 96 kHz) and is used in some Windows Mobile devices as well as the Logitech Squeezebox Touch. Finally, WMA Voice is a lossy codec optimized for low-bandwith voice playback applications, with mono sampling support up to 22.05 kHz - it is perhaps most well known for being used by the BBC World service for streaming Internet radio.|
Convert AMR file
- amr to aac (Advanced Audio Coding File)
- amr to ac3 (AC3 Audio File)
- amr to flac (Free Lossless Audio Codec)
- amr to m4a (Compressed video file)
- amr to mp3 (Compressed audio file)
- amr to mp4 (MPEG-4 Video File)
- amr to ogg (Ogg Vorbis Compressed Audio File)
- amr to wav (Windows audio file)
- amr to wma (Windows Media Audio)