let n0 = live.biosignal { stream: "synthetic" };
let n1 = dsp.filter.bandpass(input: n0.signal) { center: 10, bandwidth: 4 };
let n2 = dsp.fft(signal: n1.output.clone()) { size: 256 };
let n3 = Mean(input: n2.magnitude.clone());
let n4 = Max(input: n2.magnitude);