Macintosh and Windows users can download a free audio program called Audacity. It allows users to edit, manipulate and convert audio to several different formats. The lowest-quality audio available is 8-bit; it can be useful when you want a small audio file to transfer easily with email.
Things You'll Need
Download and install Audacity. Open the program.
Drag the MP3 file that you want to convert to the Audacity window. This will automatically copy the file over to the program so you can edit it.
Click the main Audacity menu. Select "Preferences" in the drop-down menu. A new dialog box will appear called "Audacity Preferences."
Click the "Quality" option. You will see a list of options to choose from. In the "Default Sample Format," change to 8-bit. Press "OK."
Select "File." Click "Menu" in the drop-down box locate. Name your file. Click "Save." This will save your file in the new audio format.
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