On Wed, Jan 11, 2017 at 04:33:10PM -0500, Kei Kebreau wrote:
> -       (uri (string-append "mirror://sourceforge/audacity/audacity/" version
> -                           "/audacity-minsrc-" version ".tar.xz"))
> +       (uri (string-append "https://github.com/audacity/audacity/archive"
> +                           "/Audacity-" version ".zip"))

It looks like they recommend another URL:

http://www.audacityteam.org/download/source/

which points to

https://www.fosshub.com/Audacity.html/audacity-minsrc-2.1.2.tar.xz