The loudspeaker on your home entertainment equipment is designed to project audio around the space in which it operates, if it’s not omnidirectional as such it can feel that way as the ...

For this reason, [Yihui] is attempting to build an open-source smart speaker from scratch. The initial prototype uses a Raspberry Pi 3B and a ReSpeaker microphone array. In order to try and bring ...

Creating a sound source was a little more difficult. For the special speaker that can broadcast infrasound (sounds below 20Hz) we wanted a giant speaker box, around 10.2 cubic meters (360 cubic feet).