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SpinCAD Designer
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      • The Pitch Offset Blocks
  • Design Concepts
    • Basic LFOs in SpinCAD Designer
    • Deep dive into the Three-Tap Delay block
      • Deep dive into the ThreeTap Delay, part 1
      • Deep dive into the ThreeTap delay, part 2
      • Deep dive into the ThreeTap Delay, part 3
    • Analyzing the Spin auto-wah peak detector
      • The Spin auto-wah peak detector, part I
      • The Spin auto-wah peak detector, part II
      • The Spin auto-wah peak detector, part III
    • Intro to the "Dattorro" reverb structure
    • Analyzing the Spin Mini Reverb
      • Analyzing the Spin "Mini Reverb" part 1
      • Analyzing the Spin "Mini Reverb" part 2
      • Analyzing the Spin "Mini Reverb" part 3
  • Patches
    • Making a tremolo patch
    • Making a vibrato/chorus patch
    • Making a pitch shifting delay
    • Multi-head "drum/tape" delay
    • 4-phase LFO driven mixer
  • Tips and Tricks
    • Editing tips for fast patch creation
    • Programming the FV-1 EEPROM with your code
    • Optimizing FV-1 assembly code generated by SpinCAD Designer
  • Beneath the Hood
    • How SpinCAD Builder works
    • Analyzing a simple SpinCAD Builder file
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  1. Patches

Making a tremolo patch

PreviousAnalyzing the Spin "Mini Reverb" part 3NextMaking a vibrato/chorus patch

Last updated 1 year ago

Let's try out a really simple patch - a tremolo. This showcases two very powerful blocks for processing control signals such as the pot inputs.

#1 - the Scale/Offset block lets you constrain the low and/or high range of a control to make sure that the thing that you want to adjust is set just right.

#2 - the Power block lets you set a control so it comes in faster or slower relative to the rotation of the pot.

Further explanation of the "Tremolizer" block is in order. If you use the width control on the Sin/Cos LFO, then this will adjust the swing around the center point (which is 0 when the output range is set to -1.0 to 1.0 and 0.5 when the output range is set to 0.0 to 1.0).

What I really want is for the LFO signal, going from 0.0 to 1.0, to REDUCE the gain of the audio signal as the LFO amplitude increases. Otherwise you are left with the possibility that then the width is 0, you will have no volume at all coming out of the tremolo. The Tremolizer uses some clever internal scaling to give you this without having to think too much about it.

Here's a.

link to the patch file