There where three men in a nazi fortress with a mic! What the fuck is going on?!
Luckily it's just three music/sound nerds wanting to grab some reverb impulses. The guilty three are me andArild Lillebostad. An impulse response is for the normal people a recording of the reverberation that is caused by an acoustic space when an short sound is played. The sound can be an electric spark, starter pistol shot or the bursting of a balloon, for instance. We went for the ballon! A recording of this approximated ideal impulse may be used directly as an impulse response in a convolution reverb like Space Designer or Altiverb. Provided that the pulse is short enough compared to the impulse response, the result will be close to the true, theoretical, impulse response.