bbhi's comments

On: Show HN: I built a synth for my daughter

[bbhi]

Looks like a fun project. I can highly recommend Teensy Audio Library for audio projects: https://www.pjrc.com/teensy/td_libs_Audio.html

[gregsadetsky → bbhi]

Mozzi (for Arduino) is also great!

https://sensorium.github.io/Mozzi/

On: Toroidal propeller allows a drone to operate more quietly [pdf]

[bbhi]

I wonder how the acoustic measurements were taken. From my own experience propeller noise is highly direction-dependant. For a fair comparison a lot of angle-dependant measurements would have to be considered.