My white noise is set randomly but analyze: what's the optimal volume? Map the masking threshold: loud enough to mask disruptions, quiet enough to not be stimulus. Calculate: if I calibrated volume precisely, would sleep improve? Show me the volume test: start high, decrease until just masking noises. Give me the optimal setting: this volume for my environment. Include: whether too loud is stimulating, how to find just-right volume, and if I should adjust seasonally.