Matt

@mattdavison
6 Followers
30 Following
9 Posts
Digital Musical Instrument, Haptics & HCI researcher (PhD Candidate) within the Augmented Instruments Lab at Imperial College London. Embedded software engineer.
Show threadMattSep 6, 2025
(4/4) Find all the details (including schematic, audio examples, etc) in the paper here: https://dafx25.dii.univpm.it/wp-content/uploads/2025/07/DAFx25_paper_55.pdf
Show threadMattSep 6, 2025
(3/4) We demonstrate the idea by replacing the diodes in a Boss DS-1 distortion pedal with our synthetic impedance system, while keeping the rest of the system in the analog domain. This provides a proof of concept, but there's lots more exciting ideas to explore!
Show threadMattSep 6, 2025
(2/4) By measuring the voltage at a node and actuating a currently, any two port electrical component (or network of components) can be simulated digitally in an otherwise analog circuit. This presents a customisable electrical impedance to the circuit, which can be reactive, non-linear, etc.
MattSep 6, 2025
(1/4) Great to have the opportunity to present a paper by Francisco Bernardo, myself, and @amcpherson at DAFx 2025: "Impedance Synthesis for Hybrid Analog-Digital Audio effects". The work, led by Francisco, integrates digital systems into analog circuits bidirectionally.
MattJul 2, 2025
Andrew McPhersonJul 2, 2025
Just launched on @crowdsupply: Bela Gem is a high-performance, open-source embedded audio platform. It has a 1.4GHz quad-core processor (based on PocketBeagle 2), 24bit/96kHz audio, 16-bit analog ins for sensors, and a browser-based IDE with built-in oscilloscope and signal monitoring tools. 1ms round-trip audio latency makes it well-suited for instruments and audio effects. Campaign runs through 30 July: https://www.crowdsupply.com/bela/bela-gem-stereo-and-multi
Bela Gem Stereo and Multi

A high-performance audio and sensor system for the PocketBeagle 2

Crowd Supply
MattJun 27, 2025
Great to have demoed the HaptiCoupler kit at #lac2025 yesterday. Lots of great insight and creative ideas from people trying it out. This kit is open source, find all the files (firmware, schematics, PCBs etc.) in the GitHub repo here: https://github.com/davisonaudio/HapticInstrumentWorkshop
Show threadMattJun 25, 2025
See a quick video demo of it over on BlueSky: https://bsky.app/profile/mdavison.bsky.social/post/3lsbf3y4fic2e
Matt Davison (@mdavison.bsky.social)

(1/2) I'll be presenting a demo of the HaptiCoupler device at the Linux Audio Conference in Lyon this week! ( jimlac25.inria.fr ) The HaptiCoupler is an open source kit that enables bidirectional tactile interaction with digital resonant synthesis instruments

Bluesky Social
MattJun 23, 2025

I'll be presenting a demo of the HaptiCoupler device at the Linux Audio Conference in Lyon this week! ( https://jimlac25.inria.fr/ ) The HaptiCoupler is an open source kit that enables bidirectional tactile interaction with digital resonant synthesis instruments.

Find out more about the kit at the GitHub repo here: https://github.com/davisonaudio/HapticInstrumentWorkshop. Get in touch if you want to borrow a kit to experiment with!

MattApr 10, 2024
Andrew McPhersonApr 9, 2024
I'm happy to be able to join @cfrauenberger tomorrow for an online talk at the CHIME network around entanglement HCI and musical instrument design. Starts at 2pm London time (3pm CEST). Details here: https://www.chime.ac.uk/chime-seminar-christopher-frauenberger-and-andrew-mcpherson
CHIME Seminar: Christopher Frauenberger and Andrew McPherson — Music and Human-Computer Interaction Network

Music and Human-Computer Interaction Network