MUS420 Lecture
Time Varying Delay Effects

Julius O. Smith III (jos at ccrma) , Stefania Serafin,
Jonathan S. Abel, and David P. Berners

Detailed Contents (and Navigation)

• Variable Delay Line
  • Variable Delay Line Applications
  
  
• Flanging
• Flanging Model
  • Feed-Forward Comb-Filter Amplitude Response
  • Summary of Flanging
  
  
• Phasing
  • First-Order Allpass Filter Section
  • Four First-Order Analog Allpass Filters
  
  
• Vibrato Simulation
• Doppler Effect
  • Doppler Shift Formula
  • Vector Formulation
  • Velocity Projection
  • Doppler Simulation
  • Doppler Simulation via Delay Lines
  • Multiple Read/Write Pointers
  • Stereo Multiple-Moving-Source Simulation
  
  
• Chorus Effect
• The Leslie
  • Inside the Leslie
  • Leslie Operation
  • Rotating Horn Simulation
  • Rotating Horn Doppler Shift
  • Rotating Horn Doppler Shift, Cont'd
  
  
• Computational Modeling of the Leslie
  • Leslie Free-Field Horn Measurements
  • Measured impulse responses
  • Measured amplitude responses
  • Sound Example
  
  
• About this document ...