Hey hey,
if you're not absolutely set on open source software, there is iZotope RX 5:
https://www.izotope.com/en/products/repair-and-edit/rx.html
Noty sure if it would run under Linux, but usually they offer 10 day trial
versions. So, if all else fails, it might be a possibility. They certainly
have dereverberation and the demos I heard sounded quite good.
Ta-ta,
----
Ffanci
* Homepage:
https://freeshell.de/~silvain
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