Now that’s an interesting challenge. I haven’t seen it done before. I have one of its predecessors here [MIDIFEX soapbox – Preset 50 Medium Bloom, plus the Device Squad EEPROM]. Very unique.
I have 3, 4, 5 base algorithms in mind to try out. Not so sure yet that the Bloom is a true (backwards) reverse reverb; inverse envelope, yes. A little grainy, and probably topping off at 12 kHz.
Lots of diffusion is a requirement here. I believe the ‘modulation’ comes from being in a feedback loop (although modulated delay lines sound great, too). The real key will be getting that exponential attack, while maintaining the lushness & decay. I’ll try a few different approaches, as time permits.