flowrs-engine/crates/flowrs-app/eval/graphs/dsp-noise.fdsl

let n0 = dsp.noise { type: "white", amplitude: 0.5 };
let n1 = dsp.gain(input: n0.signal) { gain_db: -6 };
let n2 = Std(input: n1.output.clone());
let n3 = dsp.fft(signal: n1.output.clone()) { size: 512 };