Use another vibrator as a tabletop or even a microwave speaker

For the experiment, we ordered three different sound exciter vibrators. And indeed, no matter where the vibrators were placed, the sound came out. And even better than expected!
Well, in this context, it is certainly worth noting right away that there is no real question of high-end sound, even though in principle there could be elements in this that are even more exotic than in a planar-type high-end speaker? But surprisingly well, we were able to reproduce everything from a cabinet, a decor panel, a TV-level door, to a wall. Why not, then, just as well, a ceiling panel or even a car dashboard?.

The biggest problem with sound is low frequencies, which the method has difficulty producing or has limitations and problems in producing them. Therefore, it is more of background music than more serious listening. On the other hand, the actuators can reach surprisingly low frequencies. Bass use also has its own resonators, which are based more on the physical sensation transmitted through the furniture than on the air vibrations transmitted to the ear.

Another problem is resonances. The vibrating piece of music or sound used as a “speaker” should not itself cause any additional resonances, and the sound may of course easily spread to the other side of the wall.