Building A Modulation Delay In Gen~

Membership plan: Going Deeper | Topics: Sound Design

Course overview

Cycling 74’s Max / MSP’s Gen~ offers a vast playground of audio processing opportunities to create your own audio devices. In this workshop you will build your own modulation delay line that utilizes Gen for signal processing. This workshop aims to provide you with suitable skills to begin exploring  modulation delay line devices in the Gen~. Gen provides highly optimised audio processes that matches C++ and is the ideal technology for improving complex Max patches and free CPU.

What you'll learn

  • Utilise the Gen~ Delay operator to make a circular buffer
  • Building comb filters via FIR & IIR techniques
  • Execute modulation sources
  • Develop custom audio effects such as flanging and chorusing

Who is this course for?

  • Max users who want to get further with signal processing
  • Users who want to begin exploring modulation delay line devices in Gen~

Course content

  • Workshop materials
  • Lesson 1. Getting Started: Patch Overview
  • Lesson 2. Digital Filter Design: Causal, LTI Systems
  • Lesson 3. FIR & IIR Filters
  • Lesson 4. Comb Filter
  • Lesson 5. Gen Objects Overview
  • Lesson 6. 1st Assignment: Build a Comb Filter in Gen
  • Lesson 7. 1st Assignment Check: Comb Filter Done
  • Lesson 8. More About Digital Filters: Linear Interpolation
  • Lesson 9. Flanger
  • Lesson 10. 2nd Assignment: Make a Feedback, Through-Zero Flanger in Gen
  • Lesson 11. 2nd Assignment Check: Flanger in Gen
  • Lesson 12. Chorus
  • Lesson 13. 3rd Assignment: Make a Chorus in Gen
  • Lesson 14. 3rd Assignment: Check Chorus in Gen


  • A computer and internet connection
  • Access to a copy of Max 8 (i.e. trial or full license)

Meet your instructor

Massimiliano Cerioni is a Berlin & Rome based AV composer, performer, sound designer and engineer. He is the founder of the independent audio software project Culto, which has released its first M4L device Simbiosi in 2021. He uses coding, augmented instruments and electronics to create compositions, performances and installations.


Useful links

Download a copy of Max - Download Max | Cycling '74 (

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4 months ago

Dear Massimiliano thank you for the tutorial, but please advise on how to make these delays effects in stereo? Could you please add it in this course? I think flanger and chorus in general should create a stereo picture is’nt it?

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