# GTO audio-rate sampling GTO Stepped samples NTO audio at a separate clock rate, creating rate-dependent aliases. ## 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. NTO: around 100–200 Hz. GTO left Stepped: cycle off, SMPL up, RATE fully fast. 2. GTS upper: start around 1 kHz, with a reasonably symmetric cycle; keep the sample clock below about 2 kHz. ## Cables 1. GTS XL upper END OUT → GTS XL upper TRIG IN. 2. GTS XL upper END OUT → Dual GTO left Stepped SMPL. 3. NTO SINE → Dual GTO left Stepped IN. 4. Dual GTO left Stepped OUT → Edelweiss right Mix Pro IN 1. 5. Edelweiss right Mix Pro OUT → Audio Interface AUX IN. ## Listen for Rough stepped audio with new pitches and beating that move as the sample rate changes. ## Play it Sweep the clock downward through the NTO frequency while holding the NTO pitch still. ## If it misbehaves A flat output at very high clock rates can be the GTO sample-window limit; slow the clock. ## Module references - https://serge-modular.com/docs/Serge%20Dual%20GTO%20user%20manual.pdf