If you are looking for a VST, why not run Reaper stretch algorithms?
Quite a few algorithms to choose from to. Easy to change playback rate.
This offline thing - what do you mean by that?
If anything sound good at 50%, I haven't found it. To transcribe parts from music you can do that - but as original music, I wonder.
Are you doing filmscore - or what is the purpose?
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----- Windows 7 Pro x64, i7-860 2.8GHz 16G, RME HDSP 9632+Ai4S+Audient ASP800, Reaper 4.7 x64 -----
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