A walkthrough of implementing a modulated delay effect (chorus/flanger-style) in C++ audio programming. The presenter explains how difference equations translate directly into code: computing the LFO-modulated delay length, calculating a helper signal with feedback from the delay line's midpoint, computing the output sample using blend and feedforward coefficients, then pushing the helper signal into the delay line before returning the output. The core message is that DSP math maps cleanly to implementation code.
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