AMR to WMA: Convert Audio from AMR(Adaptive Multi-Rate) to WMA(Windows Media Audio) with River Past Audio Converter, AMR2WMA converter, conversion

What is AMR?

Adaptive Multi-Rate (AMR) is an audio data compression scheme optimized for speech coding. AMR was adopted as the standard speech codec by 3GPP in October 1998 and is now widely used in GSM. It uses link adaptation to select from one of eight different bit rates based on link conditions.

To decode AMR audio, you need to have Apple QuickTime installed.

What is WMA?

Short for Windows Media Audio, a Microsoft file format for encoding digital audio files similar to MP3 though can compress files at a higher rate than MP3. WMA files, which use the “.wma” file extension, can be of any size compressed to match many different connection speeds, or bandwidths.

Additional information is available on Microsoft Windows Media page.

Launch River Past Audio Converter

Once River Past Audio Converter is installed properly, launch Audio Converter.

Add File

Click on the "Add File" button on the tool bar. The standard file open dialog appears. Select "AMR - Adaptive Multi-Rate" in its "Files of type" combo box.

Note: To convert from AMR files, you must have QuickTime installed.

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Select output format

Use the setting panel on the bottom of the window to control the output format. Click on the toggle to the left of the "Format" label to expand the panel. Select "WMA - Windows Media Audio" as the "Audio Type".

Note: To convert to WMA files, you must have Windows Media Format 9 runtime installed.

You can change the compressor, and depending on the compressor, you can change the sample rate, channel (stereo or mono), bits/sample, and bitrate.

Select output directory

Expand the "Output Directory" panel. Use the "Browse" button to select an output directory.

Convert

Click the "Convert" button on the tool bar.

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