Project · C++20 · JUCE / VST3

Audiocity

A high-performance hybrid sampler built with JUCE and C++20, delivered as both a standalone Windows app and a VST3 instrument plugin from a single shared engine.

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Audiocity main window with waveform editing

Overview

Audiocity uses a single JUCE AudioProcessor shared between standalone and VST3 targets, with a spec-first architecture, explicit real-time safety rules, and deterministic offline tests for engine behavior.

Highlights

  • Standalone Windows desktop application and VST3 instrument plugin from one engine.
  • Sample playback with pitch shifting via resampling and explicit voice stealing for polyphony.
  • Amp ADSR and filter ADSR with low-pass filtering and modulation controls.
  • Sampler-style UI with Browser, Mapping, Editor, Settings, and Diagnostics panels.
  • Preset save / rename / delete / reload using .acp XML payloads.
  • Library peak-preview caching with invalidation when the source library changes.
  • REX import support and optional ASIO when the Steinberg ASIO SDK is available.
Audiocity main window with sample controls
Sample preset controls, waveform display, and sample information.
Audiocity envelope and filter sections
Amp/filter envelopes, modulation, and filter response views.
Audiocity effects and diagnostics
Effects, output metering, and diagnostics.