Audacity Ogg - How to Convert Ogg to MP3 in Audacity and Vice Versa?
How to Export Audio in Audacity: 5 Steps (with Pictures) - wikiHow
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Audacity tutorial: Converting to mp3 or AAC and other formats, example: Matthew Smith - epic orchestral synth music for film and game effects; Buanzo's LAME mp3 library
Save Selected Portion of MP3 Audio File? - Ask Dave Taylor
How to CONVERT Audacity Files to MP3, Export Audacity Recordings as MP3 Audio Files - YouTube