Deztex Limited Productions has released Tramp4, a 4 Operator FM synth with functionality somewhere between a Yamaha DX7 and a Yamaha TX81z.

Features

• 4 Operators with settings similar to the DX7.
• Each Operator has:
  • Ratio / Fixed OSC Frequency settings.
  • A 4 level envelope generator and keyboard scaler.
  • AM and PM.
  • Velocity Sensitivity.
  • Operators may be disabled with an on/off switch.
  • An output level.
• The oscillators may be arranged in 8 different algorithms similar to the ones found on the Yamaha TX81z.
• A 4 stage pitch EG is useful for messing up the pitch signal before it enters the operators.
• A delayed LFO.

Tramp 4 is available as a VSTi for Windows and it is free. The Source Code for tramp's custom SynthEdit modules, .SE1 file and Skin Files are also available.