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Using Audacity to Convert Audio Files for an MX

To convert an ordinary WAV file to u-law CCITT 8 Hz mono in Audacity, this is the method I use.

    1. Open the WAV or other format file in Audacity
    2. Set your project “rate” to 16000 Hz (bottom left-hand corner of window)
    3. If you have a stereo file, then to convert to mono click the drop down menu in the track header and choose “split stereo to mono” then delete one of the 2 mono streams
      1. Then to save your new file go “File” > “Export” > “export Audio…”
      2. This will open the “Export Audio” window. You can set the name that you would like the file to be saved as in the “File name:” field
      3. Set the “Save as type:” field to “WAV (Microsoft)”
      4. Set the “Encoding”to “Signed 16-bit PCM
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