I am hard of hearing. It is challenging for me to hear the coffee roasting cracks, which are overwhelmed by the sound of the roasting machine fan.
Is anyone aware of or use software that shows a sound profile live (db by frequency), so that I can refer to it as I complete the roast? Not just a sample at a given moment, but an ongoing graph of db by frequency, against time. A “sound profile like this
If so, can it filter out the fan noise on the fly (live)? The ability to robustly filter out fan noise and just leave the crack sounds is important. Something like Audacity https://www.audacityteam.org but live. If not, then do you know of software that will do this?