The bit rate is the number of bits that are processed per unit of time. The bit rate for typical Internet radio is 32kbps (kilobytes per second) and about 128kbps for standard CD quality. With the Audacity audio editing application, you can flawlessly change the bit rate of songs.
Download, install and launch Audacity (audacity.sourceforge.net/download/).
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From the "File" menu, select "Open" to choose which audio you wish to edit. The audio file is imported.
From the "File" menu, select "Export as WAV...," "Export As MP3..." or "Export as Ogg Vorbis..."
Select where you want to save your file by navigating to the desired location. Click the "Options" button to select the desired file format. Then press the "Save" button.
After the "Options" dialog appears, select "Constant." From the "Quality" drop-down menu, select the desired bit rate from 8kbps to 320kpbs. In addition, make sure that the box next to "Stereo" is checked. There are many other options in this dialog, so if you don't like these settings you could play around with them to determine which setting is best for you.