A digital waveguide-based approach for Clavinet modeling and synthesis

Leonardo Gabrielli, Vesa Välimäki, Henri Penttinen, Stefano Squartini, Stefan Bilbao

Research output: Contribution to journalArticleScientificpeer-review

6 Citations (Scopus)
116 Downloads (Pure)


The Clavinet is an electromechanical musical instrument produced in the mid-twentieth century. As is the case for other vintage instruments, it is subject to aging and requires great effort to be maintained or restored. This paper reports analyses conducted on a Hohner Clavinet D6 and proposes a computational model to faithfully reproduce the Clavinet sound in real time, from tone generation to the emulation of the electronic components. The string excitation signal model is physically inspired and represents a cheap solution in terms of both computational resources and especially memory requirements (compared, e.g., to sample playback systems). Pickups and amplifier models have been implemented which enhance the natural character of the sound with respect to previous work. A model has been implemented on a real-time software platform, Pure Data, capable of a 10-voice polyphony with low latency on an embedded device. Finally, subjective listening tests conducted using the current model are compared to previous tests showing slightly improved results.
Original languageEnglish
Article number103
Pages (from-to)1-14
JournalEurasip Journal on Advances in Signal Processing
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed


  • Acoustic signal processing
  • acoustics
  • IIR filters
  • music
  • signal synthesis

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