Audacity is a free, open source software for recording and editing sounds.
Audacity can record live audio through a microphone or mixer, or digitize recordings from cassette tapes, vinyl records, or minidiscs. With some sound cards, it can also capture streaming audio. You can use
Audacity to: Record live audio; Convert tapes and records into digital recordings or CDs; Edit Ogg Vorbis, MP3, and
...Licence : GPL 
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