ir.lv2 1.3.3~dfsg0-1 (i386 binary) in ubuntu focal

 IR is a zero-latency, realtime, high performance signal convolver
 especially for creating reverb effects. Supports impulse responses
 with 1, 2 or 4 channels, in any soundfile format supported by libsndfile.
 .
 IR files can be for example here:
  - http://rhythminmind.net/1313/?cat=182
  - http://www.echochamber.ch/responses/index.html
  - http://noisevault.com/index.php?page=ir-library
  - http://www.samplicity.com/bricasti-m7-impulse-responses/
 .
 For converting 2ch impupuses to 4ch *True stereo* format
 use 'convert4chan' utility. See man pages.