4. Parametric Cables

4.1. Input (trigger) signal

The input signal to be delayed is a trigger signal.

<<tdelay_d>>=

gf_cable *in;

<<bind_cables>>=

gf_node_get_cable(node, 0, &td->in);

4.2. Feedback

Feedback is a value between 0 and 1. To prevent crazy things from happening, these values will be clamped before being used.

<<tdelay_d>>=

gf_cable *fdbk;

<<bind_cables>>=

gf_node_get_cable(node, 1, &td->fdbk);

Feedback and delay is treated as a control-rate signal. These values get cached every time the clock signal updates.

4.3. Delay

Delay time is a value-truncated integer. The most intuitive way to think about delay times is to think of them as musical values, assuming the clock is 16th notes. 4 would be a quarter, 2 an eigth, 1 a 16th, etc. The smallest possible delay would therefore be 1.

<<tdelay_d>>=

gf_cable *dly;

<<bind_cables>>=

gf_node_get_cable(node, 2, &td->dly);

4.4. Master Clock

A trigger delay is synchronized via a master clock signal. Instead of thinking of units of seconds, one must think in units of ticks.

<<tdelay_d>>=

gf_cable *clk;

<<bind_cables>>=

gf_node_get_cable(node, 3, &td->clk);

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