# Sampled noise, restrained pitch A clocked GTO Stepped section captures noise; a Mix Pro scales the held voltage before it controls NTO. ## Start here Lower the monitoring level before patching. These are documented patch designs, not claims of hardware audition. Unless this recipe uses the right Mix Pro for control voltage: center its DC offset, zero unused channels, and bring up only the cabled audio inputs. Connect Audio Interface MIX OUT to your normal monitoring chain. 1. GTS upper: 1–3 Hz. GTO left Stepped: cycle off, SMPL up (sample mode), RATE fully fast. 2. Mix Pro: offset centered at zero, unused channels zero, channel 1 initially zero. Raise it only enough for a small pitch range. ## Cables 1. GTS XL upper END OUT → GTS XL upper TRIG IN. 2. GTS XL upper END OUT → Dual GTO left Stepped SMPL. 3. Dual GTO S/H source → Dual GTO left Stepped IN. 4. Dual GTO left Stepped OUT → Edelweiss right Mix Pro IN 1. 5. Edelweiss right Mix Pro OUT → NTO 1V/OCT. 6. NTO SINE → Audio Interface AUX IN. ## Listen for A sequence of held, unquantized pitches with fresh independent samples. This is not a Brownian walk. ## Play it Vary the Mix Pro depth between tiny detuning and wide intervals. ## If it misbehaves Constant pitch: SMPL in the center ignores sampling; also confirm the S/H noise source reaches Stepped IN. ## Module references - https://serge-modular.com/docs/Serge%20Dual%20GTO%20user%20manual.pdf