- When travelling waves are damped, their losses are
distributed along the length of the system.
- Rather than applying losses at each time-step, they may be
accumulated, or lumped, at discrete points along the delay
line.
- If the losses are the same for each frequency, they may be
simulated using a simple scaling of the delay line input or output.
- If losses are frequency dependent they are implemented using a
digital filter
with the corresponding frequency response.
- The input-output simulation is exact, while the signal samples
inside the delay line have a slight gain error.
- If the internal signals are needed later, they can be tapped out
using correcting gains relative to the tapping location.
``Music 206: Digital Waveguides''
by Tamara Smyth,
Department of Music, University of California, San Diego (UCSD).
Download PDF version (dwg.pdf)
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Copyright © 2019-05-01 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<trsmyth@ucsd.edu>