Andrew McPherson
banner
apmcpherson.bsky.social
Andrew McPherson
@apmcpherson.bsky.social
Professor in Design Engineering and Music, Imperial College London. Researcher, composer, violist, engineer, instrument designer.

Leader of the Augmented Instruments Laboratory instrumentslab.org.
Co-founder and director of Bela.io.
Bravo MIT! How reassuring to see this dignity and strength. www.mit.edu/response-gov...
MIT's response to government activity | MIT - Massachusetts Institute of Technology
www.mit.edu
October 11, 2025 at 9:45 PM
Meanwhile, PDM (pulse-density modulation) mics are tiny microphones with a digital output which can reduce electrical noise. You can use 8 of these (and maybe even 16!) on Bela Gem Multi to make mic arrays, useful for robotics, beam-forming, field recording and other applications.
July 23, 2025 at 8:53 AM
Bela Gem Multi already supported 10 audio inputs and 10 audio outputs, 8 of which are DC-coupled. A new design change lets you use DC-coupled signals like CVs or sensor readings on 8 of the audio *inputs* as well. (Some level shifting is needed to situate these inputs between 0 and 3.3V.)
July 23, 2025 at 8:51 AM
Amazing Tom - thanks!

(Also everyone should check out Tom's SPOKE project at the MIDI Innovation Awards: midi.org/innovation-a...)
SPOKE
midi.org
July 14, 2025 at 6:41 PM