Real-Time Web Audio DSP: Filters, Ring Modulators & Delay Networks
The Studio LOOS Voice Changer utilizes native AudioNode routing to construct dynamic digital signal processing graphs in real-time. By interconnecting oscillators, wave-shaping distortion curves, multi-tap delay networks, and biquad filters, we achieve professional audio transformations without latency or external plugins.
Voice Effect Architectures Explained
- Robot / Ring Modulator: Multiplies your vocal input by a synthesized 100 Hz carrier wave using an
AudioParamgain modulation node. This generates non-harmonic sidebands (\(f_{ ext{voice}} \pm 100 ext{ Hz}\)), producing the iconic metallic robotic timbre pioneered in early electroacoustic studios. - Megaphone / Walkie-Talkie: Chains a bandpass filter centered at 1400 Hz (Q = 1.8) into an asymmetrical 4x oversampled
WaveShaperNodeto emulate the harsh acoustic resonance and non-linear distortion of public address horns. - Deep Demon: Low-passes your voice at 1100 Hz with high resonance, coupled with subtle tape saturation and down-pitch resampling to add menacing demonic weight.
- Space Cathedral Echo: Implements a recursive delay feedback loop with an integrated high-frequency damping filter, recreating the natural acoustic absorption of vast architectural spaces.