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ITB REVERB 1

Developing My Own VST3 AU Plugin with Cmajor

Posted on 31 March 202531 March 2025 By IntheBox Blog No Comments on Developing My Own VST3 AU Plugin with Cmajor

Recently, I have started developing my own audio plugins using Cmajor, an extension of Code that allows for high-performance audio processing. One of my first experiments led to a very interesting reverb plugin, which I built in VST3 and Component formats. I would love to hear your thoughts on it and whether you’d like to see additional features!

Overview of My Reverb Plugin

The core of the reverb is structured using a graph-based approach, connecting different processors to achieve a rich and customizable sound. Here’s a breakdown of how it works:

  • Pre-Delay: This introduces a short delay before the reverb starts, helping to maintain clarity in the original signal.
  • Crossover Control: This parameter determines the frequency at which the low and mid frequencies are split, allowing different decay times for each band.
  • RT60 Controls (Low & Mid): These set the reverberation time for low and mid frequencies, defining how long the reverb tail lasts.
  • High-Frequency Damping: This controls how high frequencies decay over time, simulating different types of room absorption.
  • Parametric EQ: Two bands of EQ allow shaping of the reverb’s tonal characteristics by adjusting frequency and gain.
  • Dry/Wet Mixer: This lets users balance the amount of direct signal and reverb in the output.

Technical Details

The plugin’s architecture follows a modular approach with distinct processing units:

  • Delay Processor: Handles the pre-delay time before the signal enters the reverb core.
  • Reverb Core: Implements multiple feedback delay networks (FDN) to generate a natural reverb tail.
  • Parametric EQ: Allows shaping of the reverb frequency response.
  • Dry/Wet Mixer: Ensures seamless blending between the original and processed signal.

This structure ensures flexibility, making the plugin suitable for various mixing and sound design applications.

Future Improvements

While the reverb already delivers a lush and flexible sound, I’m considering adding:

  • More advanced modulation options.
  • Additional reverb algorithms for different room types.
  • A GUI for intuitive control.

Let me know your thoughts! Would you like to try it? What features would you like to see next?

Download

If you want to learn more about how to create your own plugin, check out this video!”

Blog, Free Plugins, News, Reverb

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