This is my setup for a remote meeting. I also use nwmONE, an open-ear headphone, to monitor meeting sounds.

This movie demonstrates an open-ear headphone. The sound was recorded by an omnidirectional miniature condenser microphone I am holding. I am exposed to a babble noise consisting of 20 speakers through headphones. The attenuation of the leakage sound exceeds 40dB under the 3 kHz frequency range.

Open-ear headphones with ***PASSIVE*** acoustic circuits suppressing leakage sounds are a game-changer in speech communication research. I will present a technical report in Japanese at a virtual meeting. For your information, I found an English YouTube review (youtu.be/ppBwNsn4kEE).

I made a similar (handy) enclosure for a one-inch full-range loudspeaker.

I designed and printed an enclosure for a 1.5-inch full-range loudspeaker. The enclosure consists of three separable (screwed) parts. It is small and easy to bring around. I will have a lot of fun with this gadget.

Maybe I am playing too much, but I learnt a lot. Very fast learning cycle with a 3D printer, a robot arm and MATLAB!

I redesigned a microphone holder for sound field visualization and printed a head model for measuring an open-ear headphone mwn ONW by Sonority Inc. It is a fantastic gadget. It opens a new experimental paradigm for speech communication research.

Loud sounds! Interactive measurement of acoustic properties using several test sounds. The tool is accessible in my GitHub repository below.
github.com/HidekiKawaha...
A MATLAB live script makes any sounds relevant for acoustic measurement test signals.
interactiveSafeGuardingOCOCO.mlx
Have fun!

I bought this. This can be a game changer in human speech communication research. But, I have to measure if it is true by using my RAPHSODIEE tools. Check links embedded in my COCOSDA presentation.

Preview of my presentation at Cocosda 2024. The pdf copy of this presentation has links to related materials. drive.google.com/file/d/1x2vg...