Delay lines

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Nelson Lee's Home Page — Click for http://ccrma.stanford.edu/~nalee/

Julius Smith's Home Page — Click for http://ccrma.stanford.edu/~jos

RealSimPLE Project Home Page at CCRMA

Computational Acoustic Modeling with Digital Delay

The M-Sample Delay Line

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Traveling waves propagate (i.e. travel) through space. — Click for http://ccrma.stanford.edu/realsimple/travelingwaves

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The flanger digital audio effect is implemented using a time-varying delay line — Click for http://www.harmony-central.com/Effects/Articles/Flanging/

A phase shifter or phaser is an audio effect device which operates by sweeping notches through the spectrum of a sound — Click for http://www.geofex.com/Article_Folders/phasers/phase.html

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RealSimPLE Project Home Page at CCRMA

Computational Acoustic Modeling with Digital Delay

The M-Sample Delay Line

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Delay lines

Delay lines are important building blocks for many audio effects and synthesis algorithms, including

Digital audio effects
- Phasing
- Flanging
- Chorus
- Leslie
- Reverb
Physical modeling synthesis
- Acoustic propagation delay (echo, multipath)
- Vibrating strings (guitars, violins, ...)
- Woodwind bores
- Horns
- Percussion (rods, membranes)

Subsections

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Download Delay.pdf
Download Delay_2up.pdf
Download Delay_4up.pdf

``Computational Acoustic Modeling with Digital Delay'', by Julius O. Smith III and Nelson Lee,
REALSIMPLE Project — work supported by the Wallenberg Global Learning Network .
Released 2008-06-05 under the Creative Commons License (Attribution 2.5), by Julius O. Smith III and Nelson Lee
Center for Computer Research in Music and Acoustics (CCRMA), Stanford University