The robot-like machine that can laugh

Pink Tentacle reported about a video showing a machine that can laugh. It's not really laugh like human actually but only can say Wa ha ha. Maywa Denki president Nobumichi Tosa has created a video detailing the inner workings of the manually-operated WAHHA GO GO laughing machine.

According to the video below, WAHHA GO GO is activated by spinning the torso-mounted metal disk (an optional crank arm can be used for greater speed). The disk’s rotational energy is transferred to the machine’s left and right arms via a gear assembly in the lower back. As the arms rotate, the accordion-like lungs expand upward, drawing in air that is then exhaled through the machine’s artificial vocal cords.

Another set of gear wheels in the spine transfers some of the spinning disk’s rotational energy to the head assembly, which includes a pair of tiny arms that stretch and relax WAHHA GO GO’s artificial vocal cords (thus regulating the pitch), as well as an arm connected to a valve that controls the flow of air from the lungs. This arm also opens and closes the mouth, which alters the so-called “formant characteristics” (resonant frequency) of the laugh, producing the “wa” and “ha” sounds.

By incorporating a series of mechanisms that work together to control the pitch, resonant frequency, and amount of air supplied to the artificial vocal cords, WAHHA GO GO is able to produce an uncanny human-like laugh.

Maybe this technique can be combined with other robotic and cyborg techniques, to produce a better quality robot, at the same time can laugh. Or maybe it is just wasting time ;)

Via : Pink Tentacle


I think even a ghost will afraid of it if he saw the machine laughing :D

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