Martin Messier: “…the basic sounds used in this performance consist entirely of the acoustic noises produced by 8 sewing machines, amplified by means of microcontacts and process by a computer.
The microcontroller system also enable to use the sewing machines to affect certain parameters of the acoustic sound. the wheel, for exemple, can be assigned to the output volume, etc. machine’s mechanism can be activated by remote, using microcontrollers and a computer, without the need for any other human intervention…..”
Another video below, unfortunately the interview part is in french: