説明
A vocoder node.
Drop it into any MetaSounds graph and wire it. Every control lives on the node itself as a pin, so there's no separate API to learn, no Blueprint function library, no preset system to fight. If you're comfortable with audio in Unreal Engine, you're already comfortable with this plugin.
Built for real game-audio use cases.
Pre-recorded VO: process NPC dialogue at playback time instead of baking out filtered variants for every line.
Live VOIP processing: proximity comms, tactical radio filters, distance-based degradation, run per-listener so two players at different distances from the same speaker hear different amounts of vocoding.
Arbitrary audio as carrier: shape an engine sound, an ambience bed, or any other source through the vocoder's filter bank instead of a synthesized carrier.
Full control surface, all on the node.
Built-in carrier oscillator Sine, Saw, Square with PWM, Ring Mod, Noise or wire in your own external audio as the carrier.
Live pitch-tracking carrier with an adjustable sensitivity control, so the carrier can follow the modulator's pitch instead of sitting static.
4–32 band filter bank with adjustable bandwidth/Q, automatic sibilance/consonant-clarity handling, and Bark-scale band spacing for natural-sounding speech.
Independent mono/stereo handling per side. The highest-concurrency case runs at true mono cost, making full stereo cost only where a graph genuinely needs it.
One Transition Time control governs every parameter ramp and carrier-type crossfade. Wire it to a fast snap or a slow multi-second morph, like an NPC's voice degrading as a power source drains, with the same mechanism.
Companion noise gate node for cleaning up mic input before it's sent - ships as its own reusable node, works on any audio, not just vocoded signals. Bonus node! :)
Designed to run dozens of concurrent instances without audio-thread hitches.
What's in the box.
The vocoder node and noise gate node (C++ plugin, MetaSounds-native)
A reference mic pre-processing patch (HPF → gain → noise gate) for the VOIP capture path
Ready-to-play example presets covering tactical radio, power armor, demonic, pitch-tracking, and NPC-degradation use cases
Documentation covering the pin contract, integration patterns for driving parameters from gameplay code, and performance notes
Official documents and Quick Setup guide
Videos and Tutorials on Shape Noise
Quick Start
Add the Vocoder node to your MetaSounds graph (search "Vocoder" - it's in the Vocoder category).
Wire your voice or VO source into Modulator In L. If it's mono (most mic/VOIP input is), leave Modulator Is Mono at its default true and don't bother wiring R.
Leave everything else at its defaults for now - Carrier Type defaults to Sine, so you'll immediately hear a classic tonal vocoder sound.
Wire Audio Out L / Audio Out R to your output.
That's a working vocoder in four steps. Everything below is about shaping that sound and wiring the other two carrier modes.
Requirements: Unreal Engine 5.8.x, MetaSounds plugin enabled.