Apologies, I just realized you may have been responding to the OP (It's all about me don't you know:). So yes that does sum up the options except for the previously mentioned auphonic (Which I haven't tried) decently.
Seablade
Yes, very familiar with pretty much everything that is there having read most of those articles some time ago, and even used those processes as well. See my above posts on my opinion of the quality of options that work natively on Linux.
SeabladeOn Tue, May 22, 2012 at 10:36 AM, Emanuel Rumpf <xbran@web.de> wrote:
Some links in the FAQ:
http://wiki.linuxaudio.org/faq/start#qhow_to_remove_noise_how_to_restore_old_recordings_from_vinyltape
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