Delay Lines

A variety of audio effects and algorithms make use of delay lines. As well, they can be used to efficiently simulate traveling-wave propagation. In this section, we study some properties of delay line systems and consider issues of implementation.

A Digital Delay Line

Implementing Digital Delay Lines

Tapped Delay Lines

Delay Line Interpolation: Linear Interpolation

Delay Line Interpolation: Allpass Interpolation

Simulating Sound Wave Propagation

Wave Reflections and ``Echo''

Feedforward Comb Filters

Comb filters get their name from the shape of their magnitude response and are important components of audio signal processing networks.

Feedback Comb Filters

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