pub const FUNDAMENTAL_DIP: Decibels;Expand description
How far the level at the note’s fundamental alone must dip across a cut of the attack split.
Below about A2 the harmonics’ window cannot tell a note from a key
nearby: a held A1 20 dB under a louder gated A2 dips there as the gate
closes. Its fundamental does not, and the split cuts it no further than
the split join alone. The bin of StemLevels::fundamental_level
rejects the note’s harmonics alone, fully only where a period is a
whole number of samples. From about A6 up a harmonic leaks within
23 dB at the worst phase.
On the generated sets 21 to 25 dB give the same notes, and 23 dB lies in the middle. At 19 and 20 dB squares loud for 60 to 80 % of the cycle split a held note further in 72 runs where 23 dB gives 52, and at 30 dB gated runs hit 8 fewer gates.