Case study · Audio software
MimicAudio is a Windows VST3 synthesizer built for a music-software client. Alongside a full synthesis engine and an effects chain, its AI tab analyses any audio file with FFT-based harmonic analysis and rebuilds the sound as four ready-to-use patches.
Why we built it
Producers often hear a sound they want to recreate but have no quick way to turn it into a patch on their own synth. MimicAudio closes that gap: load an audio file, let the plugin analyse it, and start from four patches that already approximate the sound.
MimicAudio is a professional VST3 synthesizer plugin built for a music-software client. It pairs a full synthesis engine with an AI timbre-matching engine that listens to an audio file and rebuilds its sound as ready-to-use synthesizer patches.
What we built
The core three-oscillator synthesizer voice.
A built-in effects chain after the synth voice.
The feature the plugin is named for: analyse a sound, rebuild it as patches.
Everything needed to audition and keep sounds.
Engineering & delivery
The plugin is written in C++ on the JUCE 8 framework and ships as a Windows VST3. Synthesis runs in real time: polyphonic voices with FM modulation, oscillator sync, and up to eight unison voices with detune and stereo spread.
The AI tab is the signal-analysis core. A 4,096-point FFT with Hann windowing turns any audio file into a frequency spectrum. From that spectrum the engine computes odd/even harmonic ratios, a spectral crest factor and a harmonic signal-to-noise ratio, and uses them to classify the sound as sine, triangle, sawtooth, square or noise. It then generates four matching presets — Accurate, Warm, Bright and Layered — with filter cutoff and envelope settings chosen to fit the detected timbre.
Analysis never blocks playback: audio files are processed on a background thread so the interface stays responsive. Sound from 44.1 kHz up to 192 kHz is handled, with automatic downsampling before analysis so results stay consistent across sample rates.
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