/ Examples / Instruments / ADSR, Envelope

ADSR, Envelope

Fiddle comes equipped with scores of Instruments that work out-of-the-box. Sometimes your creative urges require more to attain satisfaction, and push you toward novel instrument sounds. You can easily construct your own instrument from lower-level components also present in Fiddle + ChucK. This aspect of instruments is discussed here so we'll assume that you've already integrated that material into your psyche.

Let jump straight to an overwrought example. Here are the primary contituents:

• 4 ADSR Instruments have different Attack and Release settings. Each has the same internal custom instrument graph which you can inspect or modify by double-clicking in and out.
• 1 Player node drives the 4 ADSR instruments in a round-robin fashion. Even though it receives a single notestream scale from the Scale node, the fact that we wish to preserve/highlight the long sustains required a polyphonic instrument rig. Normally we would drive a single instrument with Instances set to 4. In this case we break out the voices to provide an easy means to hear the different envelope settings.
• 4 Channel nodes receive signals from each instrument> Each channel resides in a different position in the stereo field due to its Pan parameter. Within each node there is a simple effects chain composed of a single NRev Node.
• Finally we have a MidiDevice sending live notes to Player. These notes activate the downstream CCGenerator to produce a variation of the NRevs node's Mix parameter causing the automation of its reverb effect, but only when the MidiDevice keys are pressed.
  Because CCGenerator's TargetNode parameter is set to NRev the receiving Channel nodes are able to target the CC event to a single internal node.