Diagnose your VST and AU plugins with Plugindoctor

Plugindoctor is a new plugin from DDMF that allows developer and user alike to analyse key performance metrics of VST and AU plugins…


With a desire to plug a longstanding gap in the market, Plugindoctor is a tool with benefits on either side of its lifespan. For developers, it allows thorough tests of the audio quality, whilst for the user, it allows detailed information on what each plugin is doing to your audio.

Plugindoctor key features:

  • Highest quality, double precision FFT engine, independent stereo channel analysis
  • Linear analysis: magnitude and phase response using delta or random input signal
  • Harmonic analysis: highly accurate frequency response analysis to a sinusoidal input signal. Input strength and frequency can be varied for THD/THD+N calculation. Switchable intermodular distortion modus.
  • Oscilloscope: watch what happens to a sinusoidal input signal in real time.
  • Dynamics: use a ramping signal to test compression or expansion, or an attack-release signal to check your compressor’s attack and decay curves.
  • Performance: how many milliseconds are really spent in your plugin’s audio processing callback (as a function of buffer size)
  • Freely resizable user interface
  • Three quality settings, corresponding to three different FFT buffer sizes
  • Storage option of curves in Linear and Harmonic analysis mode for easy comparison of settings or of different plugins
  • Built-in screenshot function
  • Comes as a 32 and a 64 bit executable
  • Can load VST and (on Mac) AU effect plugins

Pricing and Availability:
Plugindoctor is available to download now for £14.15.