Point it at one oscillator at a time. The drift graph is the reason this exists: leave a warming VCO running and you can see the moment it stops moving.
| Division | Straight | Dotted | Triplet |
|---|
Milliseconds for delays, hertz for syncing an LFO by hand. Pre-delay in that range keeps a reverb behind the transient rather than smearing it.
Levels are RMS, not peak — pink noise at −20 dBFS RMS is the usual signal for setting monitor gain, and quoting it as peak would send you about 9 dB hot.
Three checks in one. Left and Right confirm your speakers and cables are not crossed. Alternate reveals a level or position mismatch far better than listening to both at once, because your ears compare in sequence much more reliably than in parallel. And with the polarity flipped, centred noise should lose its solid middle and smear outwards — if it does not, something upstream is already wired out of phase.
| Freq | Type | n | Note |
|---|
Axial modes bounce between one pair of surfaces and are the loudest; tangential and oblique are progressively weaker. Clustered frequencies mean a boom, big gaps mean a hole. Play the sweep and listen for the notes the room chooses for you.