Exporting as FLAC or WAV or AIFF are fine. They are all "lossless" formats.
Avoid using MP3, Ogg, WMA, AAC or other "lossy" formats whenever possible - these formats can be useful for creating smaller files for the Internet or for portable music players, but while working on the project (and for a backup copy of the finished work) it is best to keep the quality as good as possible.
cutting and pasting between files and fades....
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If you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like
If you require help using Audacity, please post on the forum board relevant to your operating system:
Windows
Mac OS X
GNU/Linux and Unix-like
Re: cutting and pasting between files and fades....
9/10 questions are answered in the FREQUENTLY ASKED QUESTIONS (FAQ)