A4D

Four independent attack-decay envelope generators in an Intellijel 1U tile, 24 HP. TR 1 is normalled to TR 2 and TR 3 to TR 4, so one gate can fire two envelopes.

Key features

• Four AD envelopes, each with its ATTACK and DECAY and an LED on its output
• Decay from 0 to about 20 seconds; the attack as long, while the gate or long trigger is held
• Normalisations: TR 1 to TR 2, TR 3 to TR 4
• For percussive sounds when triggered, filter and amplitude shaping