The position ↔ dB ↔ linear round trip, written once. A stage that STORES a linear amplitude
(a send, a matrix point, a DCA master) but is ADDRESSED by surface position crosses both
conversions on every read and every write; spelling the chain out per call site is how a
taper or a silence convention comes to differ between two doors onto the same stage.
These are THE crossing, and the only place the two quantities meet. Their signatures name which
is which (Position / LinearGain) so a caller cannot pass one for the other: the
numbers overlap in range and nothing downstream would have complained.
The position ↔ dB ↔ linear round trip, written once. A stage that STORES a linear amplitude (a send, a matrix point, a DCA master) but is ADDRESSED by surface position crosses both conversions on every read and every write; spelling the chain out per call site is how a taper or a silence convention comes to differ between two doors onto the same stage.
These are THE crossing, and the only place the two quantities meet. Their signatures name which is which (Position / LinearGain) so a caller cannot pass one for the other: the numbers overlap in range and nothing downstream would have complained.