Excerpts from Fred Gleason's message of 2011-05-04 00:20:33 +0200:
I can't tell you about jack API stuff that might be relevant but I can
tell you that it usually works, there's nothing in jack that forbids it.
There's one thing though you should be aware of: the output will reach
the input one processing cycle after the output was produced, hence it
will be delayed. This is simply a consequence of how jack works.
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